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 A San Diego Trolley street level SD-100 at Santee Town Center in 2009 | |
 Diagram of the Siemens SD100 | |
| In service | 1994–present |
| Manufacturer | Siemens Mobility |
| Built at | Florin, California |
| Constructed | 1992–2013 |
| Entered service | 1995–present |
| Number built | 431 |
| Successor | |
| Capacity |
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| Operators |
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| Specifications | |
| Car length | 24.799 m (81 ft 4+3⁄8 in) |
| Width | 2,652 mm (8 ft 8+3⁄8 in) |
| Height | 3,780 mm (12 ft 4+7⁄8 in) |
| Floor height | 991 mm (3 ft 3 in) |
| Doors | 8 (4 per side) |
| Articulated sections | 1 |
| Maximum speed | 80 km/h (50 mph) |
| Weight | 40,370 kg (89,000 lb) |
| Traction motors | 2 × 200 hp (150 kW) 4 × 194 hp (145 kW) |
| Acceleration | 1.07 m/s2 (2.39 mph/s) |
| Deceleration | 1.31 m/s2 (2.93 mph/s) (service) 2.63 m/s2 (5.88 mph/s) (emergency) |
| HVAC | Roof-mounted air conditioning |
| Electric system(s) | 600-750 V DC overhead lines |
| Current collector(s) | Faiveley pantograph |
| UIC classification | Bo’2Bo’ |
| AAR wheel arrangement | B-2-B |
| Coupling system | Scharfenberg |
| Multiple working | up to five cars |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
| Notes/references | |
| [1] | |
The SD-100 and SD-160 are light rail vehicles (LRV) that were manufactured by Siemens Mobility between 1992 and 2013 for the North American market. The vehicles were all constructed at the Siemens facility in Florin, California.
The primary difference between the models is that the older SD-100 uses direct current motors and has folding doors, while the newer SD-160 uses alternating current motors and plug doors. Both models were built with a "high-floor" design and could be equipped for level boarding at high-platform stations or with steps and wheelchair lifts for passenger loading at street level.
This model was manufactured and marketed alongside the Siemens SD-400 and SD-460 LRV, which offered both level boarding at high-platform stations and steps for passenger loading at street level.
This model has been replaced by the Siemens S700 and S70, a low-floor LRV for passenger loading at street level and the Siemens S200, a high-floor LRV for level boarding at high-platform stations.
Currently, the Metropolitan Transportation System (MTS) of San Diego, California is in the process of donating its Siemens SD100 pairs to the Mendoza Transportation Society, which has an urban metro-tram service that connects four departments (Las Heras, Ciudad , Godoy Cruz and Maipú) of the Province of Mendoza, Argentine Republic. The donation consists of 39 pairs of the mentioned model, until June 2023 9 of the total pairs that are operating and providing regular service in Mendoza, Argentina have arrived, while for the remaining 30 MTS is expected to withdraw them from their service between this year and the next in order to coordinate the shipping logistics of these pairs between the two cities.
The arrival of these formations is important for Mendoza since it is carrying out works to double the route of its metro-tram service (it is estimated that they will end in 2026 or 2027), the arrival at the Mendoza International Airport and the department of Luján de Cuyo stands out. In addition, due to its speed compared to other means of transport, it is increasingly chosen and presents a greater demand for people, which is why it is also planned to join two pairs to increase passenger capacity.
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