Traffic barricade

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A traffic barricade [1] is a type of barricade fitted with flashing lights and used to block excavations or road construction or other safety-related purposes. Formerly made of wood, or wood and steel, many now have structural members made wholly of plastic or composite materials.

Barricade object or structure that creates a barrier or obstacle to control, block passage or force the flow of traffic in a desired direction

Barricade, from the French barrique (barrel), is any object or structure that creates a barrier or obstacle to control, block passage or force the flow of traffic in the desired direction. Adopted as a military term, a barricade denotes any improvised field fortification, such as on city streets during urban warfare.

Sawhorse

A saw-horse or sawhorse is a beam with four legs used to support a board or plank for sawing. A pair of sawhorses can support a plank, forming a scaffold. In certain circles, it is also known as a mule and a short sawhorse is known as a pony. A sawhorse may also be a rack for supporting logs for sawing, known in the US as a sawbuck.

Type I, II and III barricades are commonly used for road detours and closings where vehicles are present. A-Frame barricades are more typically seen where pedestrian traffic control is needed or used on low speed roads.

In addition to the more traditional traffic barricades mentioned above there are several other categories of barricades [3] that get used quite regularly for traffic channelization including concrete barriers, jersey barriers (may be water filled or plastic), traffic barrels or drums and vertical panels. Depending on space and need all of these categories are listed as acceptable barricade devices in the MUTCD (Manual on Uniform Traffic Control Devices). [4] Traffic barrels and vertical panels are often used in areas where there is less horizontal space but they serve the same purpose - to help control the flow of traffic and protect workers.

One large multi-state company providing traffic barricade services was Houston-based, Highway Technologies, Inc., a US construction company that maintained offices in 33 cities. [5] It filed for bankruptcy in May 2013, laying off 740 of its 825 employees. [6] The company was founded in approximately 1983. [7]

U.S. state constituent political entity of the United States

In the United States, a state is a constituent political entity, of which there are currently 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory and shares its sovereignty with the federal government. Due to this shared sovereignty, Americans are citizens both of the federal republic and of the state in which they reside. State citizenship and residency are flexible, and no government approval is required to move between states, except for persons restricted by certain types of court orders. Four states use the term commonwealth rather than state in their full official names.

Highway Technologies, Inc. was a large, Houston-based US construction company with offices in 33 cities that filed for bankruptcy in May 2013, laying off 740 of its 825 employees. The company was founded 30 years ago.

United States federal republic in North America

The United States of America (USA), commonly known as the United States or America, is a country composed of 50 states, a federal district, five major self-governing territories, and various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is slightly smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U.S. is the third most populous country. The capital is Washington, D.C., and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico. The State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean. The U.S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The extremely diverse geography, climate, and wildlife of the United States make it one of the world's 17 megadiverse countries.

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Traffic light signalling device to control competing flows of traffic

Traffic lights, also known as traffic signals, traffic lamps, traffic semaphore, signal lights, stop lights, robots, and traffic control signals, are signalling devices positioned at road intersections, pedestrian crossings, and other locations to control flows of traffic.

Traffic cone usually cone-shaped markers, placed on roads or footpaths to temporarily redirect traffic

Traffic cones, also called pylons, witches' hats, road cones, highway cones, safety cones, channelizing devices, or construction cones, are usually cone-shaped markers that are placed on roads or footpaths to temporarily redirect traffic in a safe manner. They are often used to create separation or merge lanes during road construction projects or automobile accidents, although heavier, more permanent markers or signs are used if the diversion is to stay in place for a long period of time.

<i>Manual on Uniform Traffic Control Devices</i> federal highway manual

The Manual on Uniform Traffic Control Devices (MUTCD) is a document issued by the Federal Highway Administration (FHWA) of the United States Department of Transportation (USDOT) to specify the standards by which traffic signs, road surface markings, and signals are designed, installed, and used. These specifications include the shapes, colors, and fonts used in road markings and signs. In the United States, all traffic control devices must legally conform to these standards. The manual is used by state and local agencies as well as private construction firms to ensure that the traffic control devices they use conform to the national standard. While some state agencies have developed their own sets of standards, including their own MUTCDs, these must substantially conform to the federal MUTCD.

Stanchion

A stanchion is a sturdy upright fixture that provides support for some other object. It can be a permanent fixture.

Boom barrier

A boom barrier, also known as a boom gate, is a bar, or pole pivoted to allow the boom to block vehicular access through a controlled point. Typically the tip of a boom gate rises in a vertical arc to a near vertical position. Boom gates are often counterweighted, so the pole is easily tipped. Boom gates are often paired either end to end, or offset appropriately to block traffic in both directions. Some boom gates also have a second arm which hangs 300 to 400 mm below the upper arm when lowered, to increase approach visibility, and which hangs on links so it lies flat with the main boom as the barrier is raised. Some barriers also feature a pivot roughly half way, where as the barrier is raised, the outermost half remains horizontal, with the barrier resembling an upside-down L when raised.

A reassurance marker or confirming marker is a type of traffic sign that confirms the identity of the route being traveled without providing information found on other types of road signs, such as distances traveled as is done by highway location markers, distances to other locations or upcoming intersections.

Road traffic control

Road traffic control involves directing vehicular and pedestrian traffic around a construction zone, accident or other road disruption, thus ensuring the safety of emergency response teams, construction workers and the general public.

Barrier board

Barrier boards are typically long plastic or wooden beams used during road works and similar activities to cordon off areas, close roads or direct traffic.

Crowd control barrier

Crowd control barriers, are commonly used at many public events. They are frequently visible at sporting events, parades, political rallies, demonstrations, and outdoor festivals. Event organizers, venue managers, and security personnel use barricades as part of their crowd management planning.

All-way stop intersection system

An all-way stop is an intersection system used predominantly in the United States of America, SADC, Liberia and Canada where traffic approaching it from all directions is required to stop before proceeding through the intersection. An all-way stop may have multiple approaches and may be marked with a supplemental plate stating the number of approaches.

Road signs in the United States Road signs in the United States

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). There are no plans for adopting the Vienna Convention on Road Signs and Signals standards.

Construction barrel

Construction barrels are traffic control devices used to channel motor vehicle traffic through construction sites or to warn motorists of construction activity near the roadway. They are used primarily in the United States, but are occasionally used in Canada and Mexico. They are an alternative to traffic cones which are smaller and easily hit by vehicles. Drums tend to command more respect from drivers than cones as they are larger, more visible, and give the appearance of being formidable obstacles.

Road traffic control devices are markers, signs and signal devices used to inform, guide and control traffic, including pedestrians, motor vehicle drivers and bicyclists. These devices are usually placed adjacent, over or along the highways, roads, traffic facilities and other public areas that require traffic control.

Barricade tape security item

Barricade tape is brightly colored tape that is used to warn or catch the attention of passersby of an area or situation containing a possible hazard. It acts as a minor impediment to prevent accidental entrance to that area or situation and as a result enhances general safety. Barricade tape is also known as construction tape or barrier tape or in reference to the safety hazard involved as caution tape, warning tape, danger tape or hazard tape. When used by a police force, the tape is named police tape.

Comparison of MUTCD-influenced traffic signs Wikimedia list article

Most road signs used by countries in the Americas are generally influenced by the Manual on Uniform Traffic Control Devices (MUTCD), first released in 1935, reflecting the influence of the United States throughout the region. Other non-American countries using road signs similar to the MUTCD include Australia, Indonesia, Ireland, Japan, Malaysia, New Zealand, and Thailand. They are also the only countries listed here which drive on the left—with the exception of Liberia and the Philippines, both of which drive on the right.

Glossary of road transport terms Wikimedia list article

Terminology related to road transport—the transport of passengers or goods on paved routes between places—is diverse, with variation between dialects of English. There may also be regional differences within a single country, and some terms differ based on the side of the road traffic drives on. This glossary is an alphabetical listing of road transport terms.

Comparison of traffic signs in English-speaking countries

This is a comparison of road signs in countries that speak majorly English, including major ones where it is an official language and widely understood.

References

  1. ↑ "Traffic Barricades". sourcesecurity.com.
  2. ↑ "Traffic Barricade, Type I Barricade, Type II Barricade, Solid Plastic Board Barricade". Trans Supply. Retrieved 2013-11-16.
  3. ↑ "Traffic Barricades". trafficsafetywarehouse.com.
  4. ↑ "2009 Edition Chapter 6F. Temporary Traffic Control Zone Devices". mutcd.fhwa.dot.gov.
  5. ↑ Traffic-barrier company closes its doors day before Colfax Marathon, 18 May 2013, Denver Post.
  6. ↑ Construction supply company closes doors, lays off 740, 28 May 2013, Houston Chronicle.
  7. ↑ Highway Technologies Lays off 180 Employees, KDAF Dallas nightcap, 29 May 2013.


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