Road signs in the United States

11th edition of the MUTCD, published December 2023

In the United States, road signs are, for the most part, standardized by federal regulations, most notably in the Manual on Uniform Traffic Control Devices (MUTCD) and its companion volume the Standard Highway Signs (SHS).

Adoption and compliance

Map showing state adoption of the 2009 edition of the Manual on Uniform Traffic Control Devices:

  Adopted national MUTCD

  Adopted national MUTCD with state supplement

  Adopted state-specific MUTCD

The 11th edition of the MUTCD was released on December 19, 2023. ^[1] The effective date, 30 days after publication, of the MUTCD was January 18, 2024. States have two years after the effective date to do one of the following options: adopt the revised MUTCD, adopt the revised MUTCD with a state supplement, or adopt a state-specific MUTCD. ^[2]

Eighteen states use the manual without alterations; 22 states, the District of Columbia, and Puerto Rico have adopted it in conjunction with a supplemental volume; and ten states have a state version in substantial conformance to the MUTCD. ^[3] The MUTCD and SHS establish seven categories of signs for road and highway use, as follows: ^[4] (The list does not cover all situations; the signage is from the national MUTCD unless specified):

Regulatory signs

Regulatory signs give instructions to motorists, pedestrians, and cyclists. Signs including Stop, Yield, No Turns, No Trucks, No Parking, No Stopping, Minimum Speed, Right Turn Only, Do Not Enter, Weight Limit, and Speed Limit are considered regulatory signs. Some have special shapes, such as the octagon for the Stop sign and the crossbuck for railroad crossings. Some signs can be localized, such as No Parking, and some are found only in state and local jurisdictions, as they are based on state or local laws, such as New York City's "Don't Block the Box" signs. These signs are in the R series of signs in the MUTCD and typically in the R series in most state supplements or state MUTCDs.

R1 series: Stop and yield

• 
  R1-1
  Stop
• 
  R1-2
  Yield
• 
  R1-2aP
  To oncoming traffic (plaque)
• 
  R1-2bP
  To traffic in circle (plaque)
• 
  R1-2cP
  To all lanes (plaque)
• 
  R1-3P
  All way (plaque)
• 
  R1-5R
  Yield here to pedestrians (right)
• 
  R1-5L
  Yield here to pedestrians (left)
• 
  R1-5aR
  Yield here to school crossing (right)
• 
  R1-5aL
  Yield here to school crossing (left)
• 
  R1-5bR
  Stop here for pedestrians (right)
• 
  R1-5bL
  Stop here for pedestrians (left)
• 
  R1-5cR
  Stop here for school crossing (right)
• 
  R1-5cL
  Stop here for school crossing (left)
• 
  R1-5dR
  Yield here to trail crossing (right)
• 
  R1-5dL
  Yield here to trail crossing (left)
• 
  R1-5eR
  Stop here for trail crossing (right)
• 
  R1-5eL
  Stop here for trail crossing (left)
• 
  R1-6
  In-street pedestrian crossing ^{[a] [b]}
• 
  R1-6
  In-street pedestrian crossing
• 
  R1-6a
  In-street pedestrian crossing ^{[a] [b]}
• 
  R1-6a
  In-street pedestrian crossing
• 
  R1-6b
  In-street school crossing
• 
  R1-6c
  In-street school crossing
• 
  R1-6d
  In-street trail crossing
• 
  R1-6d
  In-street trail crossing
• 
  R1-7
  Wait on stop
• 
  R1-7a
  Wait on stop - Go on slow
• 
  R1-8
  Go on slow
• 
  R1-9
  Overhead pedestrian crossing ^{[a] [b]}
• 
  R1-9
  Overhead pedestrian crossing
• 
  R1-9a
  Overhead pedestrian crossing ^{[a] [b]}
• 
  R1-9a
  Overhead pedestrian crossing
• 
  R1-9b
  Overhead school crossing ^{[a] [b]}
• 
  R1-9b
  Overhead school crossing ^{[a] [b]}
• 
  R1-10P
  Except right turn (plaque)

R2 series: Speed limit

• 
  R2-1
  Speed limit
• 
  R2-2P
  Truck speed limit (plaque)
• 
  R2-2aP
  Buses speed limit (plaque)
• 
  R2-2bP
  Trucks and buses speed limit (plaque)
• 
  R2-2cP
  Vehicles over 5 tons speed limit (plaque)
• 
  R2-3P
  Night speed limit (plaque)
• 
  R2-4P
  Minimum speed limit (plaque)
• 
  R2-4a
  Combined speed limit
• 
  R2-5P
  Unless otherwise posted (plaque)
• 
  R2-5aP
  Citywide (plaque)
• 
  R2-5bP
  Neighborhood (plaque)
• 
  R2-5cP
  Residental (plaque)
• 
  R2-6P
  Fines higher (plaque)
• 
  R2-6aP
  Fines double (plaque)
• 
  R2-6bP
  Speeding fine (plaque)
• 
  R2-10
  Begin higher/double fines zone
• 
  R2-11
  End higher/double fines zone
• 
  R2-12
  End work zone speed limit
• 
  R2-13
  End variable speed limit
• 
  R2-14
  End truck speed limit

R3 series: Lane usage and turns

• 
  R3-1
  No right turn
• 
  R3-1a
  No right turn for train (Activated, Blank-Out)
• 
  R3-1b
  No right turn for trucks
• 
  R3-1c
  No right turn for trucks and buses
• 
  R3-1d
  No right turn for trucks over 4 tons
• 
  R3-1e
  No right turn except buses
• 
  R3-1f
  No right turn except buses and taxis
• 
  R3-1g
  No right turn (times and days) (2-lines)
• 
  R3-1h
  No right turn (times and days) (3-lines)
• 
  R3-1h
  No right turn (times and days) (3-lines)
• 
  R3-2
  No left turn
• 
  R3-2a
  No left turn for train (Activated, Blank-Out)
• 
  R3-3
  No turns
• 
  R3-4
  No U-turn
• 
  R3-5R
  Right turn only
• 
  R3-5L
  Left turn only
• 
  R3-5a
  Straight through only
• 
  R3-5bP
  Left lane (plaque)
• 
  R3-5cP
  Hov 2+ (plaque)
• 
  R3-5dP
  Taxi lane (plaque)
• 
  R3-5fP
  Right lane (plaque)
• 
  R3-5gP
  Bus lane (plaque)
• 
  R3-5hP
  Bike lane (plaque)
• 
  R3-6R
  Optional movement lane control, straight through and right turn
• 
  R3-6L
  Optional movement lane control, straight through and left turn
• 
  R3-6a
  Optional movement lane control, U or left turn
• 
  R3-6b
  Optional movement lane control, double left turns
• 
  R3-7R
  Right lane must turn right
• 
  R3-7L
  Left lane must turn left
• 
  R3-7aP
  Except buses (plaque)
• 
  R3-7bP
  Except bicycles (plaque)
• 
  R3-8R
  Advance intersection lane control (two lanes) (right)
• 
  R3-8L
  Advance intersection lane control (two lanes) (left)
• 
  R3-8aR
  Advance intersection lane control (three lanes) (right)
• 
  R3-8aL
  Advance intersection lane control (three lanes) (left)
• 
  R3-8b
  Advance intersection lane control (three lanes)
• 
  R3-8xa
  Advance intersection lane control with bike lane
• 
  R3-8xb
  Advance intersection lane control with bike lane
• 
  R3-8xc
  Advance intersection lane control with bike lane
• 
  R3-8zd
  Advance circular intersection lane control (2 lanes)
• 
  R3-8ze
  Advance circular intersection lane control (2 lanes)
• 
  R3-8zf
  Advance circular intersection lane control (2 lanes)
• 
  R3-8zg
  Advance circular intersection lane control (2 lanes)
• 
  R3-9a
  Two-way left turn only (overhead)
• 
  R3-9b
  Two-way left turn only (post-mounted)
• 
  R3-9cP
  Begin (plaque)
• 
  R3-9dP
  End (plaque)
• 
  R3-9e
  Reversible lane control (overhead)
• 
  R3-9f
  Reversible lane control (post-mounted)
• 
  R3-9g
  Advance reversible lane control transition
• 
  R3-9h
  Advance reversible lane control transition
• 
  R3-9i
  End reverse lane
• 
  R3-10
  HOV 2+ only, 2 or more persons per vehicle (post-mounted)
• 
  R3-10a
  ILEV allowed (post-mounted)
• 
  R3-11
  HOV 2+ only (times and days) (post-mounted)
• 
  R3-11a
  2 right lanes, HOV 2+ only (times and days) (post-mounted)
• 
  R3-11b
  HOV 2+ only (full-time) (post-mounted)
• 
  R3-11c
  2 right lanes, HOV 2+ only (full-time) (post-mounted)
• 
  R3-11d
  Right lane, buses only (times and days) (post-mounted)
• 
  R3-11e
  Right lane, buses only (full-time) (post-mounted)
• 
  R3-11f
  Shoulder, buses only (times and days) (post-mounted)
• 
  R3-11g
  Shoulder, buses and right turns only (times and days) (post-mounted)
• 
  R3-11hP
  Motorcycles allowed (plaque)
• 
  R3-12
  HOV 2+ lane ahead (post-mounted)
• 
  R3-12a
  HOV lane ends (post-mounted)
• 
  R3-12b
  HOV lane ends (distance) (post-mounted)
• 
  R3-12c
  HOV restriction ends (post-mounted)
• 
  R3-12d
  HOV restriction ends (distance) (post-mounted)
• 
  R3-12e
  Left lane, HOV 2+ only (distance) (post-mounted)
• 
  R3-12f
  Bus lane ahead (post-mounted)
• 
  R3-12g
  Bus lane ends (post-mounted)
• 
  R3-12h
  Bus lane ends (distance) (post-mounted)
• 
  R3-13
  HOV 2+ only, 2 or more persons per vehicle (overhead)
• 
  R3-13a
  HOV 2+ only, 2 or more persons per vehicle (times and days) (overhead)
• 
  R3-14
  HOV 2+ only (times and days) (1-line) (overhead)
• 
  R3-14a
  HOV 2+ only (times and days) (2-lines) (overhead)
• 
  R3-14b
  HOV 2+ only (full-time) (overhead)
• 
  R3-14c
  Buses and taxis only (times and days) (overhead)
• 
  R3-15
  HOV 2+ lane ahead (overhead)
• 
  R3-15a
  HOV 2+ only begins (distance) (overhead)
• 
  R3-15b
  HOV lane ends (overhead)
• 
  R3-15c
  HOV restriction ends (overhead)
• 
  R3-15d
  Bus lane ahead (overhead)
• 
  R3-15e
  Bus lane ends (overhead)
• 
  R3-17
  Bike lane
• 
  R3-17aP
  Ahead (plaque)
• 
  R3-17bP
  Ends (plaque)
• 
  R3-18
  No U or left turn
• 
  R3-19
  Lane for left turn only
• 
  R3-19a
  Lane for U turn only
• 
  R3-19b
  Lane for U and left turns only
• 
  R3-20R
  Begin right turn lane
• 
  R3-20L
  Begin left turn lane
• 
  R3-23
  All turns from right lane (used at jug handles)
• 
  R3-23a
  U turn from right lane (used at jug handles)
• 
  R3-24
  All turns (diagonal right arrow) (used at jug handles)
• 
  R3-24a
  U and left turns (diagonal right arrow) (used at jug handles)
• 
  R3-24b
  U turn (diagonal right arrow) (used at jug handles)
• 
  R3-25
  All turns (right arrow) (used at jug handles)
• 
  R3-25a
  U and left turns (right arrow) (used at jug handles)
• 
  R3-25b
  U turn (right arrow) (used at jug handles)
• 
  R3-26
  U and left turns (straight arrow) (used at jug handles)
• 
  R3-26a
  U turn (straight arrow) (used at jug handles)
• 
  R3-27
  No straight through
• 
  R3-28
  Toll pricing
• 
  R3-29P
  Pay Toll (plaque)
• 
  R3-30P
  Take Ticket (plaque)
• 
  R3-31
  Electronic Toll Collection Pass Only
• 
  R3-32P
  No Cash (plaque)
• 
  R3-33R
  Right lane must exit
• 
  R3-33L
  Left lane must exit
• 
  R3-33aR
  Right lane must exit
• 
  R3-33aL
  Left lane must exit
• 
  R3-40
  HOV 2+, 2 or more persons per vehicle (post-mounted)
• 
  R3-42
  Express lane ends (post-mounted)
• 
  R3-42a
  Express lane ends (distance) (post-mounted)
• 
  R3-42b
  Express restriction ends (post-mounted)
• 
  R3-42c
  Express restriction ends (distance) (post-mounted)
• 
  R3-43
  HOV 2+, 2 or more persons per vehicle (overhead)
• 
  R3-44
  Toll Road Pass Only (Overhead)
• 
  R3-44a
  Toll Road Pass or High Occupancy Vehicle (HOV) (Overhead)
• 
  R3-44b
  Express lane only (Overhead)
• 
  R3-45
  Express lane ends (Overhead)
• 
  R3-45a
  Express restriction ends (Overhead)
• 
  R3-48
  Toll Costs on Express Lane (Overhead)
• 
  R3-48a
  Toll Costs on Express Lane or HOV (Overhead)
• 
  R3-51
  Travel on shoulder allowed (times and days)
• 
  R3-51aP
  No trucks (plaque)
• 
  R3-51bP
  No trucks or buses (plaque)
• 
  R3-51cP
  Emergency stopping only other times (plaque)
• 
  R3-51d
  Travel on shoulder allowed when flashing
• 
  R3-51e
  Travel on shoulder on green arrow only
• 
  R3-52
  End travel on shoulder
• 
  R3-52a
  Travel on shoulder ends (distance)
• 
  R3-52b
  Shoulder must exit (distance)
• 
  R3-52c
  Travel on shoulder begins (distance)
• 
  R3-56
  Begin exit lane
• 
  R3-57P
  To traffic on shoulder (plaque)

R4 series: Regulation of movement

• 
  R4-1
  Do not pass
• 
  R4-2
  Pass with care
• 
  R4-3
  Slower traffic keep right
• 
  R4-4
  Begin right turn lane yield to bikes
• 
  R4-5
  Trucks use right lane
• 
  R4-7
  Keep right
• 
  R4-7a
  Keep right
• 
  R4-7b
  Keep right
• 
  R4-7c
  Keep right of obstacle
• 
  R4-8
  Keep left
• 
  R4-8a
  Keep left
• 
  R4-8b
  Keep left
• 
  R4-8c
  Keep left of obstacle
• 
  R4-9
  Stay in lane
• 
  R4-9a
  Stay in lane to merge point
• 
  R4-10
  Runaway vehicles only
• 
  R4-12
  Slow vehicles with five or more following vehicles must use turn-out
• 
  R4-13
  Slow vehicles must use turn-out ahead
• 
  R4-14
  Slow vehicles must turn out
• 
  R4-16
  Keep right except to pass
• 
  R4-17
  Do not drive on shoulder
• 
  R4-18
  Do not pass on shoulder
• 
  R4-19
  Bicycle passing clearance
• 
  R4-20R
  All traffic must turn right
• 
  R4-20L
  All traffic must turn left
• 
  R4-21R
  Right turn only
• 
  R4-21L
  Left turn only

R5 series: Exclusionary

• 
  R5-1
  Do not enter
• 
  R5-1a
  Wrong way
• 
  R5-1b
  Wrong way for bicycles
• 
  R5-2
  No trucks
• 
  R5-2aP
  Except local delivery (plaque)
• 
  R5-2b
  No thru trucks
• 
  R5-3
  No motorized vehicles
• 
  R5-4
  No commercial vehicles
• 
  R5-5
  No lugged vehicles
• 
  R5-6
  No bicycles
• 
  R5-7
  No non-motorized traffic
• 
  R5-8
  No motor-driven cycles
• 
  R5-10
  No pedestrians, bicycles or motor-driven cycles
• 
  R5-10a
  No pedestrians, bicycles or motor-driven cycles on freeway
• 
  R5-10b
  No pedestrians or bicycles
• 
  R5-10c
  No pedestrians
• 
  R5-10dP
  On freeway (plaque)
• 
  R5-11
  No unauthorized vehicles
• 
  R5-12
  No thru traffic

R6 series: One way and divided highway

• 
  R6-1R
  One way (right)
• 
  R6-1L
  One way (left)
• 
  R6-2R
  One way (with arrow) (right)
• 
  R6-2L
  One way (with arrow)
  (left)
• 
  R6-3
  Divided highway crossing
• 
  R6-3a
  Divided highway crossing, T-intersection
• 
  R6-5P
  Roundabout circulation (plaque)
• 
  R6-6
  Begin one way
• 
  R6-7
  End one way

R7 series: Parking

• 
  R7-1
  No parking any time
• 
  R7-2
  No parking (times)
• 
  R7-2a
  No parking (times) (alternative)
• 
  R7-3
  No parking except Sundays and Holidays
• 
  R7-4
  No standing any time
• 
  R7-4a
  No stopping any time
• 
  R7-5
  One hour parking
• 
  R7-6
  No parking, loading zone
• 
  R7-8
  Reserved parking (wheelchair)
• 
  R7-8aP
  Van accessible (plaque)
• 
  R7-9
  No parking, bike lane
• 
  R7-9a
  No parking, bike lane
• 
  R7-10
  Back-in parking only
• 
  R7-20
  Parking fee station
• 
  R7-21
  Two hour metered parking (times and days)
• 
  R7-21aP
  Parking payments (plaque)
• 
  R7-22
  Metered parking (times and days)
• 
  R7-107
  No parking, bus stop
• 
  R7-107a
  No parking, bus stop
• 
  R7-107b
  No parking, bus stop with transit pictograph
• 
  R7-108
  Two hour parking (times)
• 
  R7-111
  No parking, except electric vehicles
• 
  R7-111a
  No parking, (times) except electric vehicles
• 
  R7-112
  Two hour parking, electric vehicles only
• 
  R7-112a
  Two hour parking, electric vehicles only (times)
• 
  R7-112b
  Two hour parking, electric vehicles only (times and days)
• 
  R7-113
  No parking, except while charging
• 
  R7-113aP
  Vehicle must be plugged in (plaque)
• 
  R7-113bP
  Vacate stall when charging completed (plaque)
• 
  R7-114
  Two hour, vehicle charging only
• 
  R7-114a
  45 minute, vehicle charging only (times)
• 
  R7-114b
  45 minute, vehicle charging only (times and days)
• 
  R7-200
  No parking and one hour parking (times) (combined)
• 
  R7-200a
  No parking and one hour parking (times) (combined)
• 
  R7-201P
  Tow away zone
• 
  R7-201aP
  Tow away zone (plaque)
• 
  R7-202P
  This side of sign (plaque)
• 
  R7-203
  Snow emergency route, no parking during snow emergency, tow-away zone

R8 series: Parking and emergency restrictions

• 
  R8-1
  No parking on pavement
• 
  R8-2
  No parking except on shoulder
• 
  R8-3
  No parking
• 
  R8-3a
  No parking (text)
• 
  R8-3c
  No parking on pavement
• 
  R8-3d
  No parking on bridge
• 
  R8-3e
  No parking on tracks
• 
  R8-3f
  No parking except on shoulder
• 
  R8-4
  Emergency parking only
• 
  R8-5
  No stopping on pavement
• 
  R8-6
  No stopping except on shoulder
• 
  R8-7
  Emergency stopping only
• 
  R8-8
  Do not stop on tracks
• 
  R8-9
  Tracks out of service
• 
  R8-10
  Stop here when flashing
• 
  R8-10a
  Stop here when flashing (alternative)

R9 series: Bicycles and pedestrians

• 
  R9-1
  Walk on left facing traffic
• 
  R9-2
  Cross only at cross walks
• 
  R9-3
  No pedestrians crossing (symbol)
• 
  R9-3a
  No pedestrians crossing
• 
  R9-3bP
  Use crosswalk (plaque)
• 
  R9-3cP
  Ride with traffic (plaque)
• 
  R9-4
  No hitchhiking (symbol)
• 
  R9-4a
  No hitchhiking
• 
  R9-5
  Bicycles use pedestrian signal
• 
  R9-6
  Bicycles yield to pedestrians
• 
  R9-7
  Bicycles left, Pedestrians right
• 
  R9-8
  Pedestrian Crosswalk
• 
  R9-9
  Sidewalk Closed
• 
  R9-10
  Sidewalk Closed Use Other Side
• 
  R9-11
  Sidewalk Closed Ahead Cross Here
• 
  R9-11a
  Sidewalk Closed Cross Here
• 
  R9-12
  Bike lane closed
• 
  R9-13
  No skaters
• 
  R9-14
  No equestrians
• 
  R9-15
  No snowmobiles
• 
  R9-16
  No all-terrain vehicles
• 
  R9-19P
  Except on shoulder (plaque)
• 
  R9-20
  Bicycles allowed use of full lane
• 
  R9-21
  Bicycles use shoulder only
• 
  R9-22
  Bicycles must exit
• 
  R9-23
  Bicycle all turns from bike lane
• 
  R9-23a
  Bicycle left turn from bike lane
• 
  R9-23b
  Bicycle left turn must use turn box
• 
  R9-23c
  Bicycle left turn must use turn box
• 
  R9-24
  Bicycle all turns (diagonal right arrow)
• 
  R9-24a
  Bicycle all turns (right arrow)
• 
  R9-25
  Bicycle U and left turns (diagonal right arrow)
• 
  R9-25a
  Bicycle U and left turns (right arrow)
• 
  R9-25b
  Bicycle U and left turns (straight arrow)
• 
  R9-26
  Bicycle U turn (diagonal right arrow)
• 
  R9-26a
  Bicycle U turn (right arrow)
• 
  R9-26b
  Bicycle U turn (straight arrow)
• 
  R9-27
  Bicycle left turn (diagonal right arrow)
• 
  R9-27a
  Bicycle left turn (right arrow)
• 
  R9-27b
  Bicycle left turn (straight arrow)

R10 series: Traffic signal

• 
  R10-1
  Cross only on green
• 
  R10-2
  Cross only on pedestrian signal
• 
  R10-3
  Push button for pedestrian signal
• 
  R10-3a
  Push button to cross street, wait for pedestrian signal
• 
  R10-3b
  Crosswalk signal instructions
• 
  R10-3c
  Crosswalk signal instructions
• 
  R10-3d
  Crosswalk signal instructions
• 
  R10-3e
  Crosswalk signal instructions
• 
  R10-3f
  Crosswalk signal instructions
• 
  R10-3g
  Crosswalk signal instructions
• 
  R10-3h
  Crosswalk signal instructions
• 
  R10-3i
  Crosswalk signal instructions
• 
  R10-4
  Push button for green
• 
  R10-4a
  Push button to cross street, wait for green
• 
  R10-5
  Left on green arrow only
• 
  R10-6
  Stop here on red
• 
  R10-6aR
  Stop here on red (alternative) (right)
• 
  R10-6aL
  Stop here on red (alternative) (left)
• 
  R10-7
  Do not block intersection
• 
  R10-8
  Use lane with green arrow
• 
  R10-10R
  Right turn signal
• 
  R10-10L
  Left turn signal
• 
  R10-10a
  U turn Signal
• 
  R10-10bR
  Right lane signal
• 
  R10-10bL
  Left lane Signal
• 
  R10-10cR
  Right turn lane signal
• 
  R10-10cL
  Left turn lane signal
• 
  R10-11
  No turn on red
• 
  R10-11a
  No turn on circular red
• 
  R10-11b
  No turn on red
• 
  R10-11c
  No turn on red except from right lane
• 
  R10-11d
  No turn on red from this lane
• 
  R10-12
  Left turn yield on green
• 
  R10-12a
  Left turn yield on flashing yellow arrow
• 
  R10-12b
  Left turn yield to bicycle
• 
  R10-13
  Emergency signal
• 
  R10-14
  Emergency signal - stop on flashing red
• 
  R10-14a
  Emergency signal - stop on flashing red (overhead)
• 
  R10-14b
  Stop here on flashing red
• 
  R10-15R
  Turning vehicles yield to pedestrians (right)
  ^[b]
• 
  Turning vehicles yield to pedestrians (right)
• 
  R10-15L
  Turning vehicles yield to pedestrians (left)
  ^[b]
• 
  Turning vehicles yield to pedestrians (left)
• 
  R10-15a
  Turning vehicles stop for pedestrians
  ^[b]
• 
  R10-16
  U-turn yield to right turn
• 
  R10-17a
  Right on red arrow after stop
• 
  R10-18
  Traffic laws photo enforced
• 
  R10-18a
  Traffic signal photo enforced
• 
  R10-19P
  Photo enforced (symbol) (plaque)
• 
  R10-19aP
  Photo enforced (plaque)
• 
  R10-20aP
  Days & times (plaque) (for use with R10-11 series) (3 lines)
• 
  R10-20aP
  Days & times (plaque) (for use with R10-11 series) (2 lines)
• 
  R10-22
  Bicycles to request green wait on line
• 
  R10-23
  Crosswalk - stop on red
• 
  R10-23a
  Stop on red - yield on flashing red after stop
• 
  R10-24
  Bicycle push button for green light
• 
  R10-25
  Push button for warning lights - wait for gap in traffic
• 
  R10-26
  Bicycle push button for green light with arrow
• 
  R10-27
  Left turn yield on flashing red arrow after stop
• 
  R10-28
  One vehicle per green
• 
  R10-29
  1 vehicle per green each lane
• 
  R10-30
  Right turn on red must yield to U-turn
• 
  R10-31P
  At signal (plaque)
• 
  R10-32P
  Push button for 2 seconds for extra crossing time
• 
  R10-40
  Bicycle signal mandatory movement (turn)
• 
  R10-40a
  Bicycle signal mandatory movement (thru)
• 
  R10-41
  Bicycle signal optional movement (thru and turn)
• 
  R10-41a
  Bicycle signal optional movement (left and right turns)
• 
  R10-41b
  Bicycle signal optional movement (all)
• 
  R10-41c
  Bicycle signal optional movement (left and thru)

R11 series: Road closed

• 
  R11-1
  Keep off median
• 
  R11-2
  Road closed ^[c]
• 
  R11-2a
  Street closed
• 
  R11-2b
  Bridge out
• 
  R11-2c
  Path closed
• 
  R11-3
  Road closed (distance) miles ahead, local traffic only
• 
  R11-3a
  Street closed (distance) miles ahead, local traffic only
• 
  R11-3b
  Bridge out (distance) miles ahead, local traffic only
• 
  R11-4
  Road closed to thru traffic

R12 series: Weight limits

• 
  R12-1
  Weight limit
• 
  R12-2
  Axle weight limit
• 
  R12-4
  Weight limit with per axle and gross
• 
  R12-5
  Weight limit with truck symbols
• 
  R12-6
  Weight limit with special hauling vehicles
• 
  R12-7
  Emergency vehicle weight limit
• 
  R12-7aP
  Emergency vehicle weight limit (plaque)

R13 series: Weigh stations

• 
  R13-1
  Trucks over 10 tons must enter weigh station next right

R14 series: Truck routes

• 
  R14-1
  Truck route sign
• 
  R14-2
  Hazardous material route
• 
  R14-3
  Hazardous material prohibited
• 
  R14-4
  National Network Route
• 
  R14-5
  National Network prohibited

R15 series: Rail and light rail

• 
  R15-1
  Railroad crossing (crossbuck)
• 
  R15-2P
  Number of tracks
• 
  R15-3P
  Vehicles required to stop are exempt from this regulation
• 
  R15-4a
  Light rail only in right lane
• 
  R15-4b
  Light rail only in left lane
• 
  R15-4c
  Light rail only in center lane
• 
  R15-5
  Do not pass stopped trains
• 
  R15-5a
  Do not pass stopped train
• 
  R15-6
  Do not drive on tracks
• 
  R15-6a
  Do not drive on tracks
• 
  R15-7
  Divided highway transit rail crossing
• 
  R15-7a
  Divided highway transit rail crossing (T-intersection)
• 
  R15-8
  Look both ways at track

R16 series: Seat belts and headlight use

• 
  R16-3
  Move over or reduce speed for vehicles stopped on shoulder
• 
  R16-4
  Minor crashes, move vehicles from travel lanes
• 
  R16-5
  Lights on when using wipers
• 
  R16-6
  Lights on when raining
• 
  R16-7
  Turn on headlights next (distance) miles
• 
  R16-8
  Turn on headlights
• 
  R16-9
  Check headlights
• 
  R16-10
  Begin daytime headlight section
• 
  R16-11
  End daytime headlight section
• 
  R16-15
  No hand-held phone use by driver
• 
  R16-15a
  No hand-held phone use by driver

R22 series: Blasting zones

• 
  R22-2
  Turn off 2-way radios and cell phones

School signs

• 
  S1-1
  School zone
• 
  S3-1
  School bus stop ahead
• 
  S3-2
  School bus turn ahead
• 
  S4-1P
  Times of day (plaque)
• 
  S4-2P
  When children are present (plaque)
• 
  S4-3P
  School (plaque)
• 
  S4-4P
  When flashing (plaque)
• 
  S4-5
  School speed limit ahead
• 
  S4-5a
  School speed zone ahead
• 
  S4-6P
  Days of week (plaque)
• 
  S4-7P
  All year (plaque)
• 
  S5-1
  School speed limit when flashing
• 
  S5-2
  End school zone
• 
  S5-3
  End school speed limit

Warning signs

W1 series: Horizontal alignment

• 
  W1-1R
  Turn (right)
• 
  W1-1L
  Turn (left)
• 
  CW1-1R
  Turn (right)
• 
  CW1-1L
  Turn (left)
• 
  W1-2R
  Curve (right)
• 
  W1-2L
  Curve (left)
• 
  CW1-2R
  Curve (right)
• 
  CW1-2L
  Curve (left)
• 
  W1-3R
  Reverse turn (right)
• 
  W1-3L
  Reverse turn (left)
• 
  CW1-3R
  Reverse turn (right)
• 
  CW1-3L
  Reverse turn (left)
• 
  W1-4R
  Reverse curve (right)
• 
  W1-4L
  Reverse curve (left)
• 
  CW1-4R
  Single lane shift (right)
• 
  CW1-4L
  Single lane shift (left)
• 
  CW1-4bR
  Double lane shift (right)
• 
  CW1-4bL
  Double lane shift (left)
• 
  CW1-4cR
  Triple lane shift (right)
• 
  CW1-4cL
  Triple lane shift (left)
• 
  W1-5R
  Winding road (right)
• 
  W1-5L
  Winding road (left)
• 
  W1-6R
  Arrow (right)
• 
  W1-6L
  Arrow (left)
• 
  CW1-6R
  Arrow (right)
• 
  CW1-6L
  Arrow (right)
• 
  W1-7
  Two-direction large arrow
• 
  W1-8R
  Chevron (right)
• 
  W1-8L
  Chevron (left)
• 
  CW1-8R
  Chevron (right)
• 
  CW1-8L
  Chevron (left)
• 
  W1-10R
  Curve with side road (right)
• 
  W1-10L
  Curve with side road (left)
• 
  W1-10aR
  Curve with crossroad (right)
• 
  W1-10aL
  Curve with crossroad (left)
• 
  W1-10bR
  Curve with tangent (right)
• 
  W1-10bL
  Curve with tangent (left)
• 
  W1-10cR
  Curve with tangent from side (right)
• 
  W1-10cL
  Curve with tangent from side (left)
• 
  W1-10dR
  Reverse curve with side road (right)
• 
  W1-10dL
  Reverse curve with side road (left)
• 
  W1-10eR
  Reverse curve with crossroad (right)
• 
  W1-10eL
  Reverse curve with crossroad (left)
• 
  W1-11R
  Hairpin curve (right)
• 
  W1-11L
  Hairpin curve (left)
• 
  W1-13R
  Truck rollover warning (right)
• 
  W1-13L
  Truck rollover warning (left)
• 
  W1-15R
  270 degree loop curve (right)
• 
  W1-15L
  270 degree loop curve (left)

W2 series: Intersections

• 
  W2-1
  Crossroad
• 
  W2-2R
  Side road (right)
• 
  W2-2L
  Side road (left)
• 
  W2-3R
  Side road at an acute angle (right)
• 
  W2-3L
  Side road at an acute angle (left)
• 
  W2-3aR
  Side road at an obtuse angle (right)
• 
  W2-3aL
  Side road at an obtuse angle (left)
• 
  W2-4
  T-intersection
• 
  W2-5
  Y-intersection
• 
  W2-6
  Roundabout
• 
  W2-7R
  Offset side roads (right and left)
• 
  W2-7L
  Offset side roads (left and right)
• 
  W2-8R
  Double side roads (right)
• 
  W2-8L
  Double side roads (left)
• 
  W2-10
  Traffic Entering When Flashing
• 
  W2-11
  Traffic Approaching When Flashing

W3 series: Advance traffic control

• 
  W3-1
  Stop sign ahead
• 
  CW3-1
  Stop sign ahead
• 
  W3-2
  Yield sign ahead
• 
  CW3-2
  Yield sign ahead
• 
  W3-3
  Traffic light ahead
• 
  CW3-3
  Traffic light ahead
• 
  W3-4
  Be prepared to stop
• 
  CW3-4
  Be prepared to stop
• 
  W3-5
  Speed limit ahead
• 
  CW3-5
  Speed limit ahead
• 
  W3-5a
  Speed zone ahead
• 
  CW3-5a
  Speed zone ahead
• 
  W3-5b
  Variable Speed Zone Ahead
• 
  W3-5c
  Truck Speed Zone Ahead
• 
  W3-6
  Draw bridge ahead
• 
  W3-7
  Ramp meter ahead
• 
  W3-8
  Ramp metered when flashing
• 
  W3-9
  Traffic Using Shoulder (times and days)

W4 series: Lanes and merges

• 
  W4-1R
  Merge (right)
• 
  W4-1L
  Merge (left)
• 
  CW4-1R
  Merge (right)
• 
  CW4-1L
  Merge (left)
• 
  W4-2R
  Lane ends (right)
• 
  W4-2L
  Lane ends (left)
• 
  CW4-2R
  Lane ends (right)
• 
  CW4-2L
  Lane ends (left)
• 
  W4-3R
  Added right lane
• 
  W4-3L
  Added left lane
• 
  CW4-3R
  Added right lane
• 
  CW4-3L
  Added left lane
• 
  W4-4P
  Cross traffic does not stop (plaque)
• 
  W4-4aPR
  Traffic from right does not stop (plaque)
• 
  W4-4aPL
  Traffic from left does not stop (plaque)
• 
  W4-4bP
  Oncoming traffic does not stop (plaque)
• 
  W4-5R
  Merge right (entering roadway)
• 
  W4-5L
  Merge left (entering roadway)
• 
  CW4-5R
  Merge right (entering roadway)
• 
  CW4-5L
  Merge left (entering roadway)
• 
  W4-5aP
  No merge area (plaque)
• 
  CW4-5aP
  No merge area (plaque)
• 
  W4-6R
  Added right lane (entering roadway)
• 
  W4-6L
  Added left lane (entering roadway)
• 
  CW4-6R
  Added right lane (entering roadway)
• 
  CW4-6L
  Added left lane (entering roadway)
• 
  W4-7R
  Heavy merge from right
• 
  W4-7L
  Heavy merge from left
• 
  W4-8
  Single lane transition

W5 series: Road width restrictions

• 
  W5-1
  Road narrows
• 
  CW5-1
  Road narrows
• 
  W5-2
  Narrow bridge
• 
  CW5-2
  Narrow bridge
• 
  W5-2a
  Narrow Underpass
• 
  W5-3
  One lane bridge
• 
  CW5-3
  One lane bridge
• 
  W5-3a
  One lane underpass
• 
  W5-4
  Ramp narrows
• 
  CW5-4
  Ramp narrows
• 
  W5-4a
  Path narrows

W6 series: Divided highway

• 
  W6-1
  Divided highway begins
• 
  CW6-1
  Divided highway begins
• 
  W6-2
  Divided highway ends
• 
  CW6-2
  Divided highway ends
• 
  W6-3
  Two-way traffic
• 
  CW6-3
  Two-way traffic
• 
  CW6-4
  Narrow two-way traffic
• 
  W6-5
  Two-way traffic (3-Lane, two lanes in the opposing direction)
• 
  W6-5a
  Two-way traffic (3-Lane, one lane in the opposing direction)

W7 series: Hills

• 
  W7-1
  Steep grade/hill
• 
  CW7-1
  Steep grade/hill
• 
  W7-1a
  Steep grade/hill percentage
• 
  W7-2P
  Use low gear
• 
  W7-2bP
  Trucks use lower gear
• 
  W7-3P
  (percent) grade ahead
• 
  W7-3aP
  Next (distance) miles ahead
• 
  CW7-3aP
  Next (distance) miles ahead
• 
  W7-3bP
  (percent) grade (distance) miles ahead
• 
  W7-4
  Runaway truck ramp (distance)
• 
  W7-4b
  Runaway truck ramp
• 
  W7-4c
  Truck escape ramp
• 
  W7-4dP
  Sand
• 
  W7-4eP
  Gravel
• 
  W7-4fP
  Paved
• 
  W7-5
  Hill (bicycle)
• 
  W7-6
  Hill blocks view

W8 series: Pavement and roadway conditions

• 
  W8-1
  Bump
• 
  CW8-1
  Bump ahead
• 
  W8-2
  Dip
• 
  CW8-2
  Dip
• 
  W8-3
  Pavement ends
• 
  CW8-3
  Pavement ends
• 
  W8-4
  Soft shoulder
• 
  CW8-4
  Soft shoulder
• 
  W8-5
  Slippery when wet ahead
• 
  CW8-5
  Slippery when wet ahead
• 
  W8-5P
  When wet (plaque)
• 
  W8-5aP
  Ice (plaque)
• 
  W8-5bP
  Steel deck (plaque)
• 
  W8-5cP
  Excess oil (plaque)
• 
  W8-6
  Truck crossing
• 
  CW8-6
  Truck crossing
• 
  W8-7
  Loose gravel
• 
  CW8-7
  Loose gravel
• 
  W8-8
  Rough road
• 
  CW8-8
  Rough road
• 
  W8-9
  Low shoulder
• 
  CW8-9
  Low shoulder
• 
  W8-10
  Bicycle slippery when wet ahead
• 
  W8-10P
  Slippery when wet (plaque)
• 
  W8-11
  Uneven lanes
• 
  CW8-11
  Uneven lanes
• 
  W8-12
  No center line
• 
  CW8-12
  No center line
• 
  W8-13
  Bridge ices before road
• 
  W8-14
  Fallen rocks
• 
  CW8-14
  Fallen rocks
• 
  W8-15
  Grooved pavement
• 
  CW8-15
  Grooved pavement
• 
  W8-15aP
  Motorcycle (plaque)
• 
  CW8-15aP
  Motorcycle (plaque)
• 
  W8-16
  Metal bridge deck
• 
  CW8-16
  Metal bridge deck
• 
  W8-17R
  Right shoulder drop-off ahead
• 
  W8-17L
  Left shoulder drop-off ahead
• 
  CW8-17R
  Right shoulder drop-off ahead
• 
  W8-17P
  Shoulder drop-off (plaque)
• 
  CW8-17P
  Shoulder drop-off (plaque)
• 
  W8-18
  Road may flood
• 
  CW8-18
  Road may flood
• 
  W8-19
  Depth gauge
• 
  W8-21
  Gusty Winds Area
• 
  W8-22
  Fog area
• 
  W8-23
  No shoulder ahead
• 
  CW8-23
  No shoulder ahead
• 
  CW8-24
  Steel plate ahead
• 
  W8-25
  Shoulder ends
• 
  CW8-25
  Shoulder ends
• 
  W8-26
  Road Ends (distance)
• 
  W8-26a
  Street Ends (distance)

W9 series: Lane transitions

• 
  W9-1R
  Right lane ends
• 
  W9-1L
  Lane lane ends
• 
  CW9-1R
  Right lane ends
• 
  CW9-2a
  Merge here take turns
• 
  CW9-3
  Interior lane shift ahead
• 
  W9-4
  Lanes Merge
• 
  W9-5
  Bicycle Lane Ends
• 
  W9-5a
  Bicycles Merging
• 
  CW9-5a
  Bicycles Merging
• 
  W9-6
  Pay toll (distance) cars (price)
• 
  W9-6a
  Stop Ahead Pay Toll Cars (price)
• 
  W9-6bP
  Pay toll (distance) cars (price) (plaque)
• 
  W9-6cP
  Stop Ahead Pay Toll (Plaque)
• 
  W9-6dP
  Stop Ahead Pay Toll (plaque)
• 
  W9-6e
  Take Ticket (distance)
• 
  W9-6f
  Stop Ahead Take Ticket
• 
  W9-6gP
  Take Ticket (distance) (plaque)
• 
  W9-6hP
  Stop Ahead Take Ticket (plaque)
• 
  W9-7R
  Right lane for exit only
• 
  W9-7L
  Left lane for exit only

W10 series: Railroad crossings

• 
  W10-1
  Railroad crossing ahead
• 
  W10-1aP
  Exempt (plaque)
• 
  W10-2R
  Crossroads with parallel tracks (right)
• 
  W10-2L
  Crossroads with parallel tracks (left)
• 
  W10-3R
  Side road with parallel tracks (right)
• 
  W10-3L
  Side road with parallel tracks (left)
• 
  W10-4R
  T intersection with parallel tracks (right)
• 
  W10-4L
  T intersection with parallel tracks (left)
• 
  W10-5
  Low ground clearance railroad crossing
• 
  W10-5P
  Low ground clearance plaque
• 
  W10-7
  Light rail transit approaching sign (Activated, blank-out)
• 
  W10-8
  Trains may exceed (speed)
• 
  W10-9
  No train horn warning
• 
  W10-9P
  No train horn plaque
• 
  W10-11
  Storage space symbol
• 
  W10-11a
  XX feet between tracks and highway
• 
  W10-11b
  XX feet between highway and tracks behind you
• 
  W10-12R
  Skewed crossing ahead (right) (this supplements the w10-1 sign but does not replace it)
• 
  W10-12L
  Skewed crossing ahead (left) (this supplements the W10-1 sign but does not replace it)
• 
  W10-13P
  No gates or lights (plaque)
• 
  W10-14P
  Next crossing (plaque)
• 
  W10-14aP
  Use next crossing (plaque)
• 
  W10-15P
  Rough crossing (plaque)
• 
  W10-16
  Another train coming (Activated, Blank-Out)
• 
  W10-21
  Busway Crossing
• 
  W10-21aP
  Signal Ahead (plaque)

W11 series: Advance warnings

• 
  W11-1
  Bicycle ^[d]
• 
  W11-1
  Bicycle
• 
  W11-2
  Pedestrians ^[d]
• 
  CW11-2
  Pedestrians
• 
  W11-2
  Pedestrians
• 
  W11-3
  Deer
• 
  W11-4
  Cattle
• 
  W11-5
  Farm vehicles
• 
  W11-6
  Snowmobile
• 
  W11-7
  Equestrian
• 
  W11-8
  Emergency vehicle
• 
  W11-9
  Handicapped ^[d]
• 
  W11-9
  Handicapped
• 
  W11-10
  Truck
• 
  CW11-10
  Truck
• 
  W11-11
  Golf cart
• 
  W11-12P
  Emergency signal ahead (plaque)
• 
  W11-14
  Horse-drawn vehicles
• 
  W11-15
  Bicycle and pedestrians ^[d]
• 
  W11-15
  Bicycle and pedestrians
• 
  W11-15P
  Trail x-ing (plaque) ^[d]
• 
  W11-15P
  Trail x-ing (plaque)
• 
  W11-15a
  Trail crossing ^[d]
• 
  W11-15a
  Trail crossing
• 
  W11-16
  Bear
• 
  W11-17
  Sheep
• 
  W11-18
  Ram
• 
  W11-19
  Donkey
• 
  W11-20
  Elk
• 
  W11-21
  Moose
• 
  W11-22
  Wild horse

W12 series: Low clearance warnings

• 
  W12-1
  Double arrow
• 
  CW12-1
  Double arrow
• 
  W12-2
  Low clearance
• 
  CW12-2
  Low clearance
• 
  W12-2a
  Low Clearance (Overhead)
• 
  W12-2b
  Low Clearance (Overhead)

W13 series: Advisory speeds

• 
  W13-1P
  Speed advisory
• 
  CW13-1P
  Speed advisory
• 
  W13-1aP
  Speed advisory Confirmation (plaque)
• 
  W13-2
  Exit speed advisory
• 
  W13-3
  Ramp speed advisory
• 
  CW13-4P
  On ramp (plaque)
• 
  W13-6
  Exit speed advisory (270 degree loop curve)
• 
  W13-7
  Ramp speed advisory (270 degree loop curve)
• 
  W13-8
  Exit speed advisory (hairpin curve)
• 
  W13-9
  Ramp speed advisory (hairpin curve)
• 
  W13-10
  Exit speed advisory (turn)
• 
  W13-11
  Ramp speed advisory (turn)
• 
  W13-12
  Exit speed advisory (truck rollover)
• 
  W13-13
  Ramp speed advisory (truck rollover)
• 
  W13-20
  Variable Speed Feedback
• 
  W13-20aP
  Variable Speed Feedback (plaque)

W14 series: Dead end streets and no passing zones

• 
  W14-1
  Dead end
• 
  W14-1aR
  Dead end on the right
• 
  W14-1aL
  Dead end on the left
• 
  W14-2
  No outlet
• 
  W14-2aR
  No outlet on the right
• 
  W14-2aL
  No outlet on the left
• 
  W14-3
  No passing zone
• 
  CW14-3
  No passing zone

W15 series: Playgrounds

• 
  W15-1
  Playground ^[d]
• 
  W15-1
  Playground

W16 series: Supplemental plaques

• 
  W16-1P
  In Road (plaque)
• 
  W16-1aP
  In Street (plaque)
• 
  W16-2P
  (distance) feet
• 
  CW16-2P
  (distance) feet
• 
  W16-2P
  (distance) feet
• 
  W16-2aP
  (distance) feet
• 
  W16-2aP
  (distance) feet
• 
  W16-3P
  (distance) miles
• 
  W16-3aP
  (distance) miles
• 
  W16-4P
  Next (distance) feet
• 
  W16-5PR
  Supplemental arrow to the right (plaque) ^[e]
• 
  W16-5PR
  Supplemental arrow to the right (plaque)
• 
  W16-5PL
  Supplemental arrow to the left (plaque) ^[e]
• 
  W16-5PL
  Supplemental arrow to the left (plaque)
• 
  W16-6PR
  Supplemental arrow to the right (plaque) ^[e]
• 
  W16-6PR
  Supplemental arrow to the right (plaque)
• 
  W16-6PL
  Supplemental arrow to the left (plaque) ^[e]
• 
  W16-6PL
  Supplemental arrow to the left (plaque)
• 
  W16-7PR
  Downward diagonal arrow to the right (plaque) ^[e]
• 
  W16-7PR
  Downward diagonal arrow to the right (plaque)
• 
  W16-7PL
  Downward diagonal arrow to the left (plaque) ^[e]
• 
  W16-7PL
  Downward diagonal arrow to the left (plaque)
• 
  W16-7aP
  Dual Downward Diagonal Arrow (plaque)
• 
  W16-8P
  Advance Street Name Plaque
• 
  W16-8aP
  Advance Street Name Plaque (double arrow)
• 
  W16-9P
  Ahead
• 
  W16-9P
  Ahead
• 
  W16-10P
  Photo enforced (symbol)
• 
  W16-10aP
  Photo enforced
• 
  W16-11P
  HOV
• 
  W16-12P
  Traffic circle plaque
• 
  W16-12aP
  Roundabout junction plaque
• 
  W16-13P
  When flashing
• 
  W16-15P
  New
• 
  W16-16P
  Last Exit Before Toll (1-line plaque)
• 
  W16-16aP
  Last Exit Before Toll (2-line plaque)
• 
  W16-17P
  Toll (plaque)
• 
  W16-18P
  Notice
• 
  W16-19P
  Last In Corridor (plaque)
• 
  W16-20P
  Except Bicycles (plaque)
• 
  W16-21P
  2-Way Bicycle Cross Traffic (plaque)

W17 series: Speed humps

• 
  W17-1
  Speed hump

W18 series: No traffic signs

• 
  W18-1
  No traffic signs

W19 series: Freeway or expressway end signs

• 
  W19-1
  Freeway ends (distance)
• 
  W19-2
  Expressway ends (distance)
• 
  W19-3
  Freeway ends
• 
  W19-4
  Expressway ends
• 
  W19-5
  All traffic must exit

W20 series: Work zones

• 
  CW20-1
  Road work (distance) ahead
• 
  CW20-1b
  Path work (distance) ahead
• 
  CW20-2
  Detour (distance) ahead
• 
  CW20-2a
  Bicycle detour (distance) ahead
• 
  CW20-3
  Road closed (distance) ahead
• 
  CW20-3a
  Path closed (distance) ahead
• 
  CW20-4
  One lane road (distance) ahead
• 
  CW20-5R
  Right lane closed (distance) ahead
• 
  CW20-5aR
  2 right lanes closed (distance) ahead
• 
  CW20-5b
  Bike lane closed (distance) ahead
• 
  CW20-7
  Flagger ahead (symbol sign)
• 
  CW20-7a
  Flagger ahead (text sign)
• 
  CW20-8
  Slow (stop/slow paddle)
• 
  R1-1
  Stop (stop/slow paddle)

W21 series: Road work

• 
  CW21-1
  Workers (symbol sign)
• 
  CW21-1a
  Workers (text sign)
• 
  CW21-2
  Fresh oil (tar)
• 
  CW21-3
  Road machinery (distance) ahead
• 
  CW21-4
  Slow moving vehicle
• 
  CW21-5
  Shoulder work
• 
  CW21-5aR
  Right Shoulder Closed
• 
  CW21-5bR
  Right Shoulder Closed (distance) ahead
• 
  CW21-6
  Survey crew
• 
  CW21-7
  Utility work (distance) ahead
• 
  CW21-8
  Mowing (distance) ahead

W22 series: Blasting zones

• 
  CW22-1
  Blasting zone (distance) ahead
• 
  CW22-3
  End blasting zone

W23 series: Slow traffic

• 
  CW23-1
  Slow traffic ahead
• 
  W23-2
  New traffic pattern ahead
• 
  CW23-2
  New traffic pattern ahead
• 
  W23-2a
  New Signal Operation Ahead

W24 series: Lane shifts

• 
  CW24-1R
  Double reverse curve (right) (1 lane)
• 
  CW24-1L
  Double reverse curve (left) (1 lane)
• 
  CW24-1aR
  Double reverse curve (right) (2 lanes)
• 
  CW24-1aL
  Double reverse curve (left) (2 lanes)
• 
  CW24-1bR
  Double reverse curve (right) (3 lanes)
• 
  CW24-1bL
  Double reverse curve (left) (3 lanes)
• 
  CW24-1cP
  All lanes

W25 series: Oncoming traffic has extended green

• 
  W25-1
  Oncoming traffic has extended green
• 
  W25-2
  Oncoming traffic may have extended green

W26 series: Watch for stopped traffic

• 
  W26-1
  Watch For Stopped Traffic

Object markers

• 
  OM1-1
  Object Marker
• 
  OM1-2
  Object Marker
• 
  OM1-3
  Object Marker
• 
  OM2-1V
  Vertical Culvert Marker
• 
  OM2-1H
  Horizontal Culvert Marker
• 
  OM2-2V
  Vertical Culvert Marker
• 
  OM2-2H
  Horizontal Culvert Marker
• 
  OM3-R
  Right Object Marker
• 
  OM3-C
  Chevron Object Marker
• 
  OM3-L
  Left Object Marker
• 
  OM4-1
  End Of Road Marker
• 
  OM4-2
  End Of Road Marker
• 
  OM4-3
  End Of Road Marker

Route marker signs

M1 series: Route shields

• 
  M1-1
  Interstate Route Marker (2 digits)
• 
  M1-1
  Interstate Route Marker (3 digits)
• 
  M1-1a
  Interstate Route Marker with State (2 digits)
• 
  M1-1a
  Interstate Route Marker with state (3 digits)
• 
  M1-2
  Off interstate business route marker (loop) (2 digits)
• 
  M1-2
  Off interstate business route marker (loop) (3 digits)
• 
  M1-3
  Off interstate business route marker (spur) (2 digits)
• 
  M1-3
  Off interstate business route marker (spur) (3 digits)
• 
  M1-4
  US route marker (2 digits)
• 
  M1-4
  US route marker (3 digits)
• 
  M1-5
  State Route Marker (2 digits)
• 
  M1-5
  State Route Marker (3 digits)
• 
  M1-6
  County Route Marker
• 
  M1-7
  Forest Route
• 
  M1-8
  State or local Bicycle Route
• 
  M1-8a
  State or local Bicycle route
• 
  M1-8b
  Non-numbered bicycle route (2 lines)
• 
  M1-8c
  Non-numbered bicycle route (3 lines)
• 
  M1-9
  U.S. bicycle route
• 
  M1-10
  Eisenhower interstate system
• 
  M1-10a
  Eisenhower interstate system

M2 series: Junction markers

• 
  M2-1P
  Junction (plaque)
• 
  M2-2
  Combination junction (2 route signs)

M3 series: Cardinal direction markers

• 
  M3-1P
  Cardinal Direction - North (plaque)
• 
  M3-2P
  Cardinal Direction - East (plaque)
• 
  M3-3P
  Cardinal Direction - South (plaque)
• 
  M3-4P
  Cardinal Direction - West (plaque)

M4 series: Route marker auxiliaries

• 
  M4-1P
  Alternate (plaque)
• 
  M4-1aP
  Alt (plaque)
• 
  M4-2P
  By-Pass (plaque)
• 
  M4-3P
  Business (plaque)
• 
  M4-4P
  Truck (plaque)
• 
  M4-5P
  To (plaque)
• 
  M4-6P
  End (plaque)
• 
  M4-7P
  Temporary (plaque)
• 
  M4-7aP
  Temp (plaque)
• 
  M4-8P
  Detour (plaque)
• 
  M4-8a
  End detour
• 
  M4-8bP
  End (plaque) (if a road work blocked road)
• 
  M4-9R
  Detour Right Arrow
• 
  M4-9L
  Detour Left Arrow
• 
  M4-9aR
  Bicycle and Pedestrian Detour Right Arrow
• 
  M4-9aL
  Bicycle and Pedestrian Detour Left Arrow
• 
  M4-9bR
  Pedestrian Detour Right Arrow
• 
  M4-9bL
  Pedestrian Detour Left Arrow
• 
  M4-9cR
  Bicycle Detour Right Arrow
• 
  M4-9cL
  Bicycle Detour Left Arrow
• 
  M4-10R
  Detour Right Arrow
• 
  M4-10L
  Detour Left Arrow
• 
  M4-11
  Emergency Route
• 
  M4-11a
  Emergency Route
• 
  M4-11bP
  Emergency Route To (Plaque)
• 
  M4-11cP
  Emergency Route To (Plaque)
• 
  M4-12
  End Emergency Route
• 
  M4-14P
  Begin (Plaque)
• 
  M4-17
  Toll Collector Symbol Panel
• 
  M4-18
  Exact Change Symbol Panel

M5 series: Advance turn arrow auxiliary signs

• 
  M5-1PR
  Advance Right Turn Arrow (90 Degree Angle)
• 
  M5-1PL
  Advance Left Turn Arrow (90 Degree Angle)
• 
  M5-2PR
  Advance Right Turn Arrow (45 Degree Angle)
• 
  M5-2PL
  Advance Left Turn Arrow (45 Degree Angle)
• 
  M5-3PR
  Advance Right Turn Arrow (Circular Intersection)
• 
  M5-3PL
  Advance Left Turn Arrow (Circular Intersection)
• 
  M5-4P
  Lane Designation - Left Lane (Plaque)
• 
  M5-5P
  Lane Designation - Center Lane (Plaque)
• 
  M5-6P
  Lane Designation - Right Lane (Plaque)

M6 series: Directional arrow auxiliary signs

• 
  M6-1PR
  Right Directional Arrow
• 
  M6-1PL
  Left Directional Arrow
• 
  M6-2PR
  Diagonal Right Directional Arrow
• 
  M6-2PL
  Diagonal Left Directional Arrow
• 
  M6-2aPR
  Downward Diagonal Right Directional Arrow
• 
  M6-2aPL
  Downward Diagonal Left Directional Arrow
• 
  M6-3P
  Straight Directional Arrow
• 
  M6-4P
  Double Directional Arrow
• 
  M6-5PR
  Double Diagonal Right Directional Arrow
• 
  M6-5PL
  Double Diagonal Left Directional Arrow
• 
  M6-6PR
  Straight And Right Directional Arrow
• 
  M6-6PL
  Left And Straight Directional Arrow
• 
  M6-7PR
  Straight And Diagonal Right Directional Arrow
• 
  M6-7PL
  Diagonal Left And Straight Directional Arrow

M10 series: Scenic area

• 
  M10-1
  National Scenic Byway
• 
  M10-1aP
  National Scenic Byway (plaque)
• 
  M10-2
  Byway identification
• 
  M10-2aP
  Byway identification (plaque)
• 
  M10-3
  State scenic byway system
• 
  M10-3a
  State scenic byway system - simple graphic and byway identification
• 
  M10-3bP
  Scenic byway (plaque)

M11 series: National Historic Trails

• 
  M11-1
  National Historic Trail - Identification
• 
  M11-1aP
  National Historic Trail - Historic Route (plaque)
• 
  M11-1bP
  National Historic Trail - Crossing (plaque)
• 
  M11-1cP
  National Historic Trail - Auto Tour Route (Plaque)
• 
  M11-1dP
  National Historic Trail - Distance (plaque)

Destination signs

D1 series: Destination

• 
  D1-1
  Destination (1-line)
• 
  D1-1a
  Destination and Distance (1-line)
• 
  D1-1b
  Bicycle Destination (1-line)
• 
  D1-1c
  Bicycle Destination and Distance (1-line)
• 
  D1-1d
  Destination (Circular Intersection) (1-line)
• 
  D1-1e
  Destination with route shield (Circular Intersection) (1-line)
• 
  D1-2
  Destination (2-lines)
• 
  D1-2a
  Destination and Distance (2-line)
• 
  D1-2b
  Bicycle Destination (2-line)
• 
  D1-2c
  Bicycle Destination and Distance (2-line)
• 
  D1-2d
  Destination (Circular Intersection) (2-lines)
• 
  D1-3
  Destination (3-lines)
• 
  D1-3a
  Destination and Distance (3-lines)
• 
  D1-3b
  Bicycle Destination (3-line)
• 
  D1-3c
  Bicycle Destination and Distance (3-lines)
• 
  D1-3d
  Destination (Circular Intersection) (3-lines)
• 
  D1-5
  Circular Intersection Destination (Diagrammatic)
• 
  D1-5a
  Circular Intersection Destination (Diagrammatic)

D2 series: Distance

• 
  D2-1
  Distance (1-line)
• 
  D2-1a
  Bicycle Distance (1-line)
• 
  D2-2
  Distance (2-lines)
• 
  D2-2a
  Bicycle Distance (2-lines)
• 
  D2-3
  Distance (3-lines)
• 
  D2-3a
  Bicycle Distance (3-lines)

D3 series: Street name

• 
  D3-1
  Street Name
• 
  D3-1a
  Street Name with route shield
• 
  D3-2
  Advance street name (2-lines)
• 
  D3-2
  Advance street name (3-lines)
• 
  D3-2
  Advance street name (3-lines)
• 
  D3-2
  Advance street name (4-lines)

D4 series: Parking

• 
  D4-1
  Parking area
• 
  D4-2
  Park - Ride
• 
  D4-3
  Bicycle parking area
• 
  D4-4
  Bicycle-sharing station
• 
  D4-4a
  Bicycle lockers

D5 series: Rest area

• 
  D5-1
  Rest area (distance)
• 
  D5-1a
  Rest area next right
• 
  D5-2
  Rest area (diagonal right arrow)
• 
  D5-2a
  Rest area gore
• 
  D5-5
  Rest area
• 
  D5-6
  Next rest area (distance) miles
• 
  D5-7
  Rest area - tourist info center (distance)
• 
  D5-7a
  Rest area - tourist info center next right
• 
  D5-8
  Rest area - tourist info center (diagonal right arrow)
• 
  D5-9
  Parking area (distance)
• 
  D5-9a
  Parking area (diagonal right arrow)
• 
  D5-9b
  Parking area gore
• 
  D5-10
  Picnic area (distance)
• 
  D5-10a
  Picnic area (diagonal right arrow)
• 
  D5-10b
  Picnic area gore
• 
  D5-11
  Scenic area (distance)
• 
  D5-11a
  Scenic area (diagonal right arrow)
• 
  D5-11b
  Scenic area gore
• 
  D5-12
  Interstate oasis
• 
  D5-12aP
  Interstate oasis (plaque)
• 
  D5-12b
  Interstate oasis
• 
  D5-13
  Brake check area (distance)
• 
  D5-14
  Brake check area (diagonal right arrow)
• 
  D5-15
  Chain-up area (distance)
• 
  D5-16
  Chain-up area (diagonal right arrow)

D8 series: Weigh station

• 
  D8-1
  Weigh station (distance)
• 
  D8-1a
  Weigh station ahead
• 
  D8-2
  Weigh station next right
• 
  D8-3
  Weigh station (diagonal right arrow)

D10 series: Reference location

• 
  D10-1
  Reference location (1 digit)
• 
  D10-1a
  Intermediate reference location (1 digit)
• 
  D10-2
  Reference location (2 digit)
• 
  D10-2a
  Intermediate reference location (2 digit)
• 
  D10-3
  Reference location (3 digit)
• 
  D10-3a
  Intermediate reference location (3 digit)
• 
  D10-4
  Enhanced reference location
• 
  D10-5
  Intermediate enhanced reference location

D11 series: Bicycle facility and shared-use path

• 
  D11-1
  Bike route
• 
  D11-1bP
  Bike route (plaque)
• 
  D11-1c
  Bike route with destination
• 
  D11-10a
  Shared-use path destination (1-line)
• 
  D11-10b
  Shared-use path destination (2-lines)
• 
  D11-10c
  Shared-use path destination (3-lines)
• 
  D11-10d
  Shared-use path destination and distance (1-line)
• 
  D11-10e
  Shared-use path destination and distance (2-lines)
• 
  D11-10f
  Shared-use path destination and distance (3-lines)
• 
  D11-11
  Bicycles permitted
• 
  D11-12
  Pedestrians permitted
• 
  D11-13
  Skaters permitted
• 
  D11-14
  Equestrians permitted
• 
  D11-20
  Bicycle left turn may use turn box
• 
  D11-20a
  Bicycle left turn box

D12 series: Radio, telephone and carpool information

• 
  D12-1
  Radio-Weather information
• 
  D12-1a
  Radio-Traffic information
• 
  D12-1bP
  Urgent message when flashing (plaque)
• 
  D12-2
  Carpool information
• 
  D12-3
  Channel 9 monitored
• 
  D12-4
  Emergency call 911
• 
  D12-5
  Travel info call 511 (pictograph)
• 
  D12-5a
  Travel info call 511
• 
  D12-6
  Roadside assistance

D13 series: Crossover and freeway entrance

• 
  D13-1
  Crossover
• 
  D13-2
  Crossover (Distance)
• 
  D13-3
  Freeway entrance
• 
  D13-3a
  Freeway entrance

D15 series: Combination lane use/destination

• 
  D15-1
  Combination lane use/destination with route shield
• 
  D15-1
  Combination lane use/destination with street name

D17 series: Truck lane and slow vehicle signs

• 
  D17-1
  Next truck lane (distance)
• 
  D17-2
  Truck lane (distance)
• 
  D17-3
  Next passing lane (distance)
• 
  D17-4
  Passing lane (distance)
• 
  D17-5
  Emergency turn-out (distance)
• 
  D17-6
  Emergency turn-out (diagonal right arrow)
• 
  D17-7
  Slow vehicle turn-out (distance)

Construction information signs

• 
  G20-1
  Road work next (distance) miles
• 
  G20-2
  Road work ends
• 
  G20-4
  Pilot car follow me
• 
  G20-5aP
  Work zone (plaque)
• 
  IA-23-1P
  Turn Only In Direction Of Arrow (plaque)
  Used with RDTS

Motorist services

• 
  D9-1
  Telephone
• 
  D9-2
  Hospital
• 
  D9-3
  Camping
• 
  D9-4
  Litter container
• 
  D9-6
  Handicapped accessible
• 
  D9-6P
  Van accessible (plaque)
• 
  D9-7
  Gasoline
• 
  D9-8
  Food
• 
  D9-9
  Lodging
• 
  D9-10
  Tourist information
• 
  D9-11
  Diesel fuel
• 
  D9-11a
  Alternative fuel (compressed natural gas)
• 
  D9-11b
  Electric vehicle charging
• 
  D9-11bP
  Electric vehicle charging (plaque)
• 
  D9-11c
  Alternative fuel (ethanol)
• 
  D9-11d
  Alternative fuel (liquefied natural gas)
• 
  D9-11e
  Alternative fuel (liquefied petroleum gas)
• 
  D9-11f
  Alternative fuel (hydrogen)
• 
  D9-11g
  Alternative fuel (biofuel)
• 
  D9-12
  RV sanitary station
• 
  D9-13
  Emergency medical services
• 
  D9-13aP
  Hospital (plaque)
• 
  D9-13bP
  Ambulance station (plaque)
• 
  D9-13cP
  Emergency medical care (plaque)
• 
  D9-13dP
  Trauma center (plaque)
• 
  D9-14
  Police
• 
  D9-16
  Truck parking
• 
  D9-16aP
  Truck external power (plaque)
• 
  D9-16b
  Truck parking availability - exit number
• 
  D9-16c
  Truck parking availability - distance
• 
  D9-16c
  Truck parking availability - distance
• 
  D9-16d
  Truck parking availability - rest area
• 
  D9-16d
  Truck parking availability - rest area
• 
  D9-16e
  Truck parking availability - combined
• 
  D9-16e
  Truck parking availability - combined
• 
  D9-16e
  Truck parking availability - combined
• 
  D9-16e
  Truck parking availability - combined
• 
  D9-17P
  Next services (distance) (plaque)
• 
  D9-17a
  Next EV charging (distance)
• 
  D9-18
  General services (up to 6 symbols) with exit number
• 
  D9-18a
  General services with exit number
• 
  D9-18b
  General services (up to 6 symbols) with action message
• 
  D9-18c
  General services with action message
• 
  D9-18dP
  Rural interchange general services (up to 3 symbols) (plaque)
• 
  D9-18eP
  Rural interchange general services (1 line) (plaque)
• 
  D9-18fP
  Rural interchange general services (2 lines) (plaque)
• 
  D9-19
  Alternative fuels corridor
• 
  D9-19aP
  Alternative fuels corridor (1 line) (plaque)
• 
  D9-19bP
  Alternative fuels corridor (2 lines) (plaque)
• 
  D9-20
  Pharmacy
• 
  D9-20aP
  24 HR (plaque)
• 
  D9-21
  Telecommunication (TDD/TTY)
• 
  D9-22
  Wireless internet

General information

• 
  I1-1
  Traffic signal speed
• 
  I2-1
  State line
• 
  I2-2
  River
• 
  I2-3
  Grade separation identification (1-line)
• 
  I2-3
  Grade separation identification (1-line)
• 
  I2-3a
  Grade separation identification (2-line)
• 
  I2-3a
  Grade separation identification (2-line)
• 
  I2-4
  Future interstate corridor
• 
  I2-4a
  Future I-XX Corridor
• 
  I2-5
  Project information
• 
  I2-5
  Project information
• 
  I3-5
  Airport
• 
  I3-6
  Bus station
• 
  I3-7
  Train station
• 
  I3-8
  Light rail station
• 
  I3-9
  Vehicle Ferry Terminal
• 
  I3-10
  Passenger Only Ferry Terminal
• 
  I3-10P
  Ferry (plaque)
• 
  I4-1
  Library
• 
  I4-2
  Recycling center
• 
  I13-1
  Emergency Notification
• 
  I13-2
  Push to Exit
• 
  I20-1
  Acknowledgement
• 
  I20-2
  Acknowledgement
• 
  I20-3
  Acknowledgement
• 
  I20-4
  Acknowledgement - Rest area
• 
  I20-4a
  Acknowledgement - Welcome Center
• 
  I20-5P
  Acknowledgement (plaque)

Freeway and expressway signs

E1 series: Exit number

• 
  E1-1
  Interchange Advance Guide (1 Destination)
• 
  E1-2
  Interchange Advance Guide (2 Destinations)
• 
  E1-3
  Interchange Advance Guide (3 Destinations)
• 
  E1-5P
  1 or 2 Digit Exit Number (plaque)
• 
  E1-5aP
  3 Digit Exit Number (plaque)
• 
  E1-5bP
  1 or 2 Digit Exit Number with single letter suffix (plaque)
• 
  E1-5cP
  3 Digit Exit Number with single letter suffix (plaque)
• 
  E1-5dP
  1 or 2 Digit Exit Number with dual letter suffix (plaque)
• 
  E1-5eP
  3 Digit Exit Number with dual letter suffix (plaque)
• 
  E1-5fP
  1 or 2 Digit Left Exit Number (plaque)
• 
  E1-5gP
  3 Digit Left Exit Number (plaque)
• 
  E1-5hP
  1 or 2 Digit Left Exit Number with single letter suffix (plaque)
• 
  E1-5iP
  3 Digit Left Exit Number with single letter suffix (plaque)
• 
  E1-5jP
  1 or 2 Digit Left Exit Number with dual letter suffix (plaque)
• 
  E1-5kP
  3 Digit Left Exit Number with dual letter suffix (plaque)
• 
  E1-5mP
  Left (plaque)

E2 series: Next exit

• 
  E2-1P
  Next Exit (1 Line) (Plaque)
• 
  E2-1aP
  Next Exit (2 Lines) (Plaques)

E4 series: Exit direction

• 
  E4-1
  Exit Direction (1 Destination)
• 
  E4-2
  Exit Direction (2 Destinations)
• 
  E4-3
  Exit Direction (3 Destinations)

E5 series: Exit gore

• 
  E5-1
  Exit Gore (No Exit Number
• 
  E5-1a
  Exit Gore (1 or 2 Digits)
• 
  E5-1bP
  Exit Number (plaque)
• 
  E5-1c
  Narrow Exit Gore
• 
  E5-2
  Exit Open
• 
  E5-2a
  Exit Closed
• 
  E5-3
  Exit Only

E6 series: Pull-through

• 
  E6-1
  Pull-Through
• 
  E6-1a
  Pull-Through (Destination)

E7 series: Post-interchange distance

• 
  E7-3
  Post-Interchange Distance (3 lines)
• 
  E7-4
  Post-Interchange Travel Time
• 
  E7-5
  Distance and Travel Time
• 
  E7-6
  Comparative Travel Time

E8 series: Preferential lane entrance, exit, and intermediate egress

• 
  E8-1
  Preferential Lane Entrance Gore
• 
  E8-1a
  Preferantial Lane Intermediate Entrance Gore
• 
  E8-2
  Preferential Lane Entrance Direction (Overhead)
• 
  E8-2a
  Preferential Lane Entrance Direction (Post-Mounted)
• 
  E8-3
  Preferential Lane Entrance Advance
• 
  E8-4
  Preferential Lane Direct Exit Gore
• 
  E8-5
  Preferential Lane Intermediate Egress Direction
• 
  E8-6
  Preferential Lane Intermediate Egress Advance

E11 series: Panels

• 
  E11-1
  Exit Only (With Arrow)
• 
  E11-1a
  Exit
• 
  E11-1b
  Only
• 
  E11-1c
  Exit Only
• 
  E11-1d
  Exit Only (With Arrow)
• 
  E11-1e
  Exit Only (With 2 Arrows)
• 
  E11-1f
  Exit Only (With 2 Arrows)
• 
  E11-2
  Left (Panel)

E13 series: Exit advisory speed

• 
  E13-2
  Exit Direction Advisory Speed - Exit (Panel)
• 
  E13-2
  Exit Direction Advisory Speed - Ramp (Panel)

Emergency management signs

• 
  EM1-1
  Evacuation route
• 
  EM1-1a
  Hurricane evacuation route
• 
  EM1-2
  Tsunami evacuation route
• 
  EM2-1
  Area Closed
• 
  EM2-2
  Traffic Control Point
• 
  EM2-3
  Maintain Top Safe Speed
• 
  EM2-4
  Road Use Permit Required For Thru Traffic
• 
  EM3-1
  Medical Center
• 
  EM3-1a
  Welfare Center
• 
  EM3-1b
  Registration Center
• 
  EM3-1c
  Decontamination Center
• 
  EM4-1
  Emergency Shelter
• 
  EM4-1a
  Hurricane Shelter
• 
  EM4-1b
  Fallout Shelter
• 
  EM4-1c
  Chemical Shelter

See also

• Comparison of traffic signs in English-speaking countries
• Crosswalks in North America
• Glossary of road transport terms
• Road signs in Canada
• Street signs in Chicago – Street name signs
• Street signs in New York City – Street name signs
• Road signs in Puerto Rico
• Warning sign

Notes

1. The legend STATE LAW is optional.
2. A fluorescent yellow-green background color may be used instead of yellow for this sign.
3. According to the 11th edition of MUTCD, STREET CLOSED (R11-2a), BRIDGE OUT (R11-2b), or PATH CLOSED (R11-2c) signs may be substituted for Road Closed signs where applicable.
4. A fluorescent yellow-green background color may be used for this sign. ^[5]
5. The background color (yellow, fluorescent yellow-green or orange) shall match the color of the warning sign that it supplements.

References

1. "FHWA Releases New Traffic Control Device Manual with Updates to Improve Safety for Pedestrians, Bicyclists, and All Road Users" (Press release). U.S. Department of Transportation. December 19, 2023. Retrieved December 27, 2023.
2. "Frequently Asked Questions - General Questions on the MUTCD". MUTCD. Federal Highway Administration. Retrieved January 29, 2024.
3. "MUTCDs & Traffic Control Devices Information by State". Manual on Uniform Traffic Control Devices. Federal Highway Administration. July 14, 2020. Retrieved January 11, 2021.
4. Staff. "The Shape—and Color—Give Us a Sign". Federal Highway Administration. Archived from the original on April 1, 2009. Retrieved April 5, 2009.
5. "2009 Edition Part 2 Figure 2C-11. Non-Vehicular Warning Signs". Manual on Uniform Traffic Control Devices. United States Department of Transportation. Retrieved June 6, 2012.

External links

• Media related to Road signs in the United States at Wikimedia Commons