Siemens SD660 explained
| Siemens SD660 (Types 2 and 3) |
| Interiorimage: | MAXcarInterior.jpg |
| Interiorcaption: | Interior of an SD660 |
| Manufacturer: | Siemens |
| Factory: | Sacramento, California |
| Yearconstruction: | 1996–2005 |
| Yearservice: | 1997 |
| Numberbuilt: | 79 |
| Numberservice: | 79 |
| Successor: | Siemens S70/S700 |
| Fleetnumbers: | - Type 2: 201–252
- Type 3: 301–327
|
| Operator: | TriMet |
| Carlength: | 91.93feet over couplers |
| Width: | 8.71feet |
| Height: | 13feet |
| Floorheight: | - High floor section: 3.22feet
- Low floor section: 1.18feet
|
| Lowfloor: | 70% |
| Entrylevelorstep: | Level |
| Art-Sections: | 3 |
| Doors: | 8 per car (4 per side) |
| Wheelbase: | 5.9feet |
| Maxspeed: | 55mph |
| Weight: | 108000lbs |
| Acceleration: | 3mph/s |
| Deceleration: | - 3mph/s (service)
- 5mph/s (emergency)
|
| Traction: | Siemens IGBT–VVVF[1] |
| Traction Motors: | 4 × Siemens 175kW 3-phase AC induction motor |
| Poweroutput: | 700kW |
| Collectionmethod: | Pantograph |
| Uicclass: | Bo′+2′+Bo′ |
| Aarwheels: | B-2-B |
| Minimum Curve: | - 82.02feet (horizontal)
- 820feet (crest vertical)
- 1150feet (sag vertical)
|
| Coupling: | Scharfenberg |
| Multipleworking: | - Within type
- With Bombardier Type 1
|
The Siemens SD660, originally known as the Siemens SD600,[2] 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.[3] [4] It first entered service in 1997 with its only operator, TriMet, on the MAX light rail system in Portland, Oregon, United States.
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.[3] The order was subsequently expanded to 46 cars and ultimately to 52.[5] TriMet received the first car, which it numbered 201, in July 1996,[6] [7] and the first nine cars entered service on August 31, 1997.[8] [9] 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.[2] 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 wheelchair ramps. These are located at two of the four doorways on each side of an LRV, the two closest to the car's center.[3]
- Bi-directional (or "double-ended"), with operating cabs at both ends[3]
See also
Other Siemens light rail vehicles for the American market:
- Siemens–Duewag U2 – high-floor LRV for either level boarding at high-platform stations or steps for passenger loading at street level
- SD-100 and SD-160 – high-floor LRV for either level boarding at high-platform stations or steps for passenger loading at street level
- SD-400 and SD-460 – high-floor LRV for both level boarding at high-platform stations and with steps for passenger loading at street level
- P2000 – high-floor LRV for level boarding at high-platform stations, custom built for Los Angeles
- S700 and S70 – low-floor LRV for passenger loading at street level
- S200 – high-floor LRV for level boarding at high-platform stations
Notes and References
- Web site: SD660 Light Rail Vehicle Technical Information. 2005-05-15. Siemens Transportation Systems. https://web.archive.org/web/20070809140452/http://www.sts.siemens.com/DS/SD660%20Portland%20DS.pdf. 2007-08-09. dead.
- Systems News. October 1998. Tramways & Urban Transit. 397. UK. Ian Allan Publishing/Light Rail Transit Association. 1460-8324.
- 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. 49–51. 0033-8826.
- . October 1993. LA And Portland Get New-Design LRVs. International Railway Journal. 26–27. 0744-5326.
- News: Oliver. Gordon. Tri-Met expands light-rail car order. September 26, 1997. The Oregonian. B6.
- News: Oliver. Gordon. MAX takes keys to cool new model. August 1, 1996. The Oregonian. D1.
- Wolinsky. Julian. Block Signals [regular news section]. Winter 1998. 38. The New Electric Railway Journal. 11. 1048-3845.
- World News Review. October 1997. 718. Light Rail & Modern Tramway. 395. UK. Ian Allan Publishing/Light Rail Transit Association. 0964-9255.
- News: O'Keefe. Mark. New MAX cars smooth the way for wheelchairs. September 1, 1997. The Oregonian. B12.
- Systems News. June 2000. 750. Tramways & Urban Transit. 227. UK. Ian Allan Publishing/Light Rail Transit Association. 1460-8324.
- Systems News. August 2002. 776. Tramways & Urban Transit. 308. UK. Ian Allan Publishing/Light Rail Transit Association. 1460-8324.
- Systems News. May 2005. 809. Tramways & Urban Transit. 196. UK. Ian Allan Publishing/Light Rail Transit Association. 1460-8324.
- "Worldwide Review". Tramways & Urban Transit, March 2015, p. 121. UK: LRTA Publishing.
- "Worldwide Review". Tramways & Urban Transit, November 2016, p. 440. UK: LRTA Publishing.
