Siemens SD660

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Siemens SD660 (Types 2 and 3)
Ad-free MAX train of two Type 2 cars on Steel Bridge in 2015.jpg
A train of SD660s on the Steel Bridge in Portland, Oregon
MAXcarInterior.jpg
Interior of an SD660
Manufacturer Siemens
Built at Sacramento, California
Constructed1996–2005
Entered service1997
Number built79
Number in service79
Successor Siemens S70/S700
Fleet numbers
  • Type 2: 201–252
  • Type 3: 301–327
Operator(s) TriMet
Specifications
Car length91.93 ft (28.02 m) over couplers
Width8.71 ft (2.65 m)
Height13 ft (4.0 m)
Floor height
  • High floor section: 3.22 ft (980 mm)
  • Low floor section: 1.18 ft (360 mm)
Low-floor 70%
EntryLevel
Doors8 per car (4 per side)
Articulated sections3
Wheelbase 5.90 ft (1,800 mm)
Maximum speed55 mph (89 km/h)
Weight108,000 lb (49 t)
Traction systemSiemens IGBT–VVVF [1]
Traction motors 4 × Siemens 175 kW (235 hp) 3-phase AC induction motor
Power output700 kW (940 hp)
Acceleration 3 mph/s (1.3 m/s2)
Deceleration
  • 3 mph/s (1.3 m/s2) (service)
  • 5 mph/s (2.2 m/s2) (emergency)
Electric system(s) Overhead line,  750 V DC
Current collector(s) Pantograph
UIC classification Bo′+2′+Bo′
AAR wheel arrangement B-2-B
Minimum turning radius
  • 82.02 ft (25.00 m) (horizontal)
  • 820 ft (250 m) (crest vertical)
  • 1,150 ft (350 m) (sag vertical)
Coupling system Scharfenberg
Multiple working
  • Within type
  • With Bombardier Type 1
[2] [3]
Track gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge

The Siemens SD660, originally known as the Siemens SD600, [4] is a double-articulated, 70%-low-floor light rail vehicle (LRV) manufactured by Siemens Transportation Systems. It was the first low-floor light rail vehicle to be used in the United States. [5] [6] It first entered service in 1997 with its only operator, TriMet, on the MAX light rail system in Portland, Oregon, United States.

Contents

History

The initial order placed by TriMet in May 1993 was for 39 cars. It was the first order for low-floor light rail vehicles (LRVs) in North America. [5] The order was subsequently expanded to 46 cars and ultimately to 52. [7] TriMet received the first car, which it numbered 201, in July 1996, [8] [9] and the first nine cars entered service on August 31, 1997. [2] [3] Siemens retroactively changed the car's model designation from SD600 to SD660, a change relating to its use of AC motors running on 60 Hz instead of DC ones, in 1998. [4] The 52nd car was received by TriMet in April 2000. [10]

TriMet later purchased 27 more SD660s (initially 17 cars, with another 10 added to the order in 2002), [11] which were built between 2003 and 2005. TriMet designated these "Type 3" in its fleet and numbered them 301–327. The last car was delivered in March 2005. [12]

All 79 SD660 cars were originally equipped with rollsign-type destination signs. TriMet replaced the original signs with LED-type signs in a two-year conversion program that lasted from fall 2014 [13] to August 2016. [14]

Features

Bridgeplate on an SD660 Doorway bridgeplate in low-floor LRV.jpg
Bridgeplate on an SD660

See also

Other Siemens light rail vehicles for the American market:

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References

  1. ↑ "SD660 Light Rail Vehicle Technical Information" (PDF). Siemens Transportation Systems. May 15, 2005. Archived from the original (PDF) on August 9, 2007.
  2. 1 2 "World News Review". Light Rail & Modern Tramway . No. 718. UK: Ian Allan Publishing/Light Rail Transit Association. October 1997. p. 395. ISSN   0964-9255.
  3. 1 2 O'Keefe, Mark (September 1, 1997). "New MAX cars smooth the way for wheelchairs". The Oregonian. p. B12.
  4. 1 2 "Systems News". Tramways & Urban Transit . UK: Ian Allan Publishing/Light Rail Transit Association. October 1998. p. 397. ISSN   1460-8324.
  5. 1 2 3 4 Vantuono, William C. (July 1993). "Tri-Met goes low-floor: Portland's Tri-Met has broken new ground with a procurement of low-floor light rail vehicles. The cars will be North America's first low-floor LRVs". Railway Age . pp. 49–51. ISSN   0033-8826.
  6. ↑ "LA And Portland Get New-Design LRVs". International Railway Journal . October 1993. pp. 26–27. ISSN   0744-5326.
  7. ↑ Oliver, Gordon (September 26, 1997). "Tri-Met expands light-rail car order". The Oregonian . p. B6.
  8. ↑ Oliver, Gordon (August 1, 1996). "MAX takes keys to cool new model". The Oregonian . p. D1.
  9. ↑ Wolinsky, Julian (Winter 1998). "Block Signals [regular news section]". The New Electric Railway Journal . No. 38. p. 11. ISSN   1048-3845.
  10. ↑ "Systems News". Tramways & Urban Transit . No. 750. UK: Ian Allan Publishing/Light Rail Transit Association. June 2000. p. 227. ISSN   1460-8324.
  11. ↑ "Systems News". Tramways & Urban Transit . No. 776. UK: Ian Allan Publishing/Light Rail Transit Association. August 2002. p. 308. ISSN   1460-8324.
  12. ↑ "Systems News". Tramways & Urban Transit . No. 809. UK: Ian Allan Publishing/Light Rail Transit Association. May 2005. p. 196. ISSN   1460-8324.
  13. ↑ "Worldwide Review". Tramways & Urban Transit , March 2015, p. 121. UK: LRTA Publishing.
  14. ↑ "Worldwide Review". Tramways & Urban Transit , November 2016, p. 440. UK: LRTA Publishing.

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