Kinki Sharyo SLRV

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Kinki Sharyo SLRV
Akard Station July 2015 10.jpg
DART Light Rail interior July 2015 1.jpg
In service1996–present
ManufacturerKinki Sharyo
Constructed1996-2013
Entered serviceJune 14, 1996; 25 years ago (1996-06-14)
Refurbished2008–2010
Number built163
Capacity94 passengers (seated), 274 (crush load) per car[1]
Operator(s)DART
Specifications
Car body constructionLow alloy high tensile steel
Train length494 ft (150.57 m)
over couplers (four articulated cars coupled together;
maximum train length)
Car length123.5 ft (37.64 m)[1]
over couplers; the length of a three-section, articulated car
Width8.83 ft (2.69 m)[1]
Height12.9 ft (3.93 m)[1]
Floor heightLow floor: 16 in (40.64 cm)
High floor: 39.5 in (100.33 cm)
Platform height16 in (40.64 cm)
EntryLevel boarding and steps
DoorsSliding pocket type; 5 per side[2]
Articulated sections3; designated A, B and C
WheelbaseMotor: 84 in (213.4 cm)
Trailer: 70 in (177.8 cm)
Maximum speed70 mph (110 km/h)[3]
Weight140,000 pounds (64,000 kg)
Traction systemOriginal: GTO–VVVF (AEG)
Upgraded: IGBT–VVVF (Toyo Denki USA)
Traction motors4 × 3-phase AC motor
Original: AEG 140 kW (190 hp) synchronous
Upgraded: Toyo Denki USA 135 kW (181 hp) induction
Power outputOriginal: 560 kW (750 hp)
Upgraded: 540 kW (720 hp)
Acceleration2.3 mph/s (3.4 ft/s2; 1.0 m/s2)
Deceleration3 mph/s (4.4 ft/s2; 1.3 m/s2)
Electric system(s)750 V DC from overhead catenary
Current collection methodPantograph
Minimum turning radius82 feet (25 m)
Track gauge1,435 mm (4 ft 8+1⁄2 in)
Notes
[4]

The Kinki Sharyo Super Light Rail Vehicle (SLRV) is a light rail vehicle manufactured by Kinki Sharyo, operated by Dallas Area Rapid Transit (DART), and modified jointly by the two companies.[5][6]

Description[]

The SLRVs are longer and can accommodate more passengers than the Kinki Sharyo-built vehicles from which they were developed, known by DART as its standard Light Rail Vehicles (LRVs),[5] which had been operated by DART Light Rail since it began service in June 1996.[7] DART's original LRVs were built as articulated, two-section cars with operator cabs at both ends.[6]

The SLRVs were designed to both increase passenger capacity and to improve the accessibility of DART's light rail system.[8] Each three-section, articulated SLRV measures 123.5 ft (37.64 m) over couplers, while the maximum train length is four articulated cars coupled together, measuring 494 ft (150.57 m) over couplers in total.[4] An individual SLRV is 31 feet (9.4 m) longer and 33,000 pounds (15,000 kg) heavier than the standard LRVs from which they were developed, which were each 92 feet 8 inches (28.24 m) in length and weighed 107,000 pounds (49,000 kg).[5] The SLRVs have a maximum speed of 70 mph (110 km/h) and can accelerate at a rate of 2.3 mph/s (3.4 ft/s2; 1.0 m/s2).[4]

Partnership[]

Working in partnership, DART and Kinki Sharyo created the SLRVs by separating the existing two-section LRVs at their articulation joints and inserting an entirely new section in between,[5][9] thereby rendering them three-section vehicles.[10] The resulting SLRVs are double-articulated, eight-axle cars, in comparison to the single-articulated, six-axle design of the original LRVs.[7] Each SLRV seats 98 passengers and can accommodate roughly 100 more standing passengers, which allows it to accommodate approximately 25 more seated people (and roughly 50 more overall) than a standard, two-section LRV.[4][5]

The middle section, variously called "Body C",[6] "C Unit", or "C Car",[11] has a low floor and provides step-free access to the SLRV.[11] It was designed primarily to allow passengers in wheelchairs,[11] as well as those with strollers and bicycles, to embark and disembark more quickly and safely.[5][6] Each SLRV middle section is also equipped with a bicycle rack.[6]

Prototype[]

In 2002, the prototype SLRV, car #170, began operating on DART's Blue Line. On June 23, 2008, car #151 became the first SLRV to enter revenue service. DART converted all 115 of its LRVs into SLRVs at a total cost of approximately $190 million,[5] which was more cost effective than buying entirely new light rail vehicles.[5][9] G. James Morgan of LTK Engineering Services estimated that DART saved over $50 million by converting its LRVs instead of buying new accessible vehicles.[7]

Conversion of an individual LRV into an SLRV took roughly five weeks,[5][7] with a sixth week for inspection and testing and the vehicle in main line operation by the next week.[7] By March 2010, 84 of DART's 115 LRVs had been converted into SLRVs,[7] and by August 2014, DART was operating a total of 163 SLRVs: all 115 converted LRVs in addition to 48 new vehicles.[4][10]

DART also modified its light rail platforms between 2007 and 2010 to accommodate the greater overall length and low-floor middle sections of the SLRVs.[9]

References[]

  1. ^ a b c d "Dallas Area Rapid Transit Reference Book" (PDF). Dallas Area Rapid Transit. March 2018. Retrieved August 2, 2018.
  2. ^ "DART Rail Facts". Retrieved 2019-01-27.
  3. ^ "Kinkisharyo SLRV Technical Data Sheet" (PDF). Retrieved 2019-07-04.
  4. ^ a b c d e "Dallas-Dallas Area Rapid Transit Technical Data" (PDF). Kinkisharyo International, LLC. Archived from the original (PDF) on June 15, 2016. Retrieved 2016-03-19.
  5. ^ a b c d e f g h i "Super Light Rail Vehicles (SLRV) Facts". Dallas Area Rapid Transit. October 29, 2010. Retrieved June 5, 2016.
  6. ^ a b c d e Nakazawa, Akihisa. "DART: Dallas Area Rapid Transit" (PDF). Kinkisharyo International, LLC. Retrieved June 5, 2016.
  7. ^ a b c d e f Morgan, G. James. "DART Super Light Rail Vehicles Low Floor Center Section: The Final "Successful" Chapter" (PDF). LTK Engineering Services. Retrieved June 5, 2016.
  8. ^ "Success Stories: Dallas Area Rapid Transit". Kinkisharyo International, LLC. Retrieved June 5, 2016.[permanent dead link]
  9. ^ a b c Lew, Alexander (June 25, 2008). "Dallas Introduces "Super Light Rail Vehicles"". Wired. Retrieved June 5, 2016.
  10. ^ a b Dixon, Scott (August 24, 2014). "Japanese companies ride U.S. light rail boom". The Japan Times. Retrieved June 5, 2016.
  11. ^ a b c Latham, Garl (2006). "Rapidly Improving Transportation". Progressive Engineer. Archived from the original on January 26, 2015. Retrieved June 5, 2016.
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