LRTA 1100 class

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LRTA 1100 class
Second-generation LRV
LRT-1 Monumento 2G (Refurbished) 1100 LRV 2021-12-18.jpg
A 1100 class train at Monumento station in 2021
In service1999–present
ManufacturerCarbody:
Hyundai Precision
Electrical components:
ADtranz
Built atChangwon, South Korea
Constructed1997–1998
Entered service1999; 23 years ago (1999)
Refurbished2019–2020
Number built28 vehicles (7 sets)
Number in service24 vehicles (6 sets)
Formation4 cars per trainset
Fleet numbers1101���1128
CapacityPer LRV: 330–349 passengers
Total: 1,358
Operator(s)Light Rail Transit Authority (1999–2015)
Light Rail Manila Corporation (2015–present)
Depot(s)Baclaran
Line(s) servedLine 1
Specifications
Car body constructionStainless steel
Train length105,700 mm (346 ft 9 in)
Car lengthMotor head cars with driving cab
26,500 mm (86 ft 11 in)
Motor intermediate cars
26,350 mm (86 ft 5 in)
Width2,590 mm (8 ft 6 in)
HeightFrom top of rail:
3,525 mm (11 ft 6.8 in)
Pantograph locked down:
3,950 mm (13 ft 0 in)
Floor height920 mm (3 ft 0 in)
Platform height690 mm (2 ft 3 in)
EntryStep
Doors4 per side, sliding pocket-type
Articulated sections2 per LRV
Wheel diameterNew: 660 mm (25.98 in)
Worn: 600 mm (23.62 in)
Wheelbase2,310 mm (7 ft 7 in)
Maximum speed60 km/h (37 mph)
WeightHead car:
37.4 t (37,400 kg)
Intermediate car:
36.5 t (36,500 kg)
Axle load10.7 t (10,700 kg)
Traction systemOriginal:
Adtranz IGBT-VVVF
Refurbished:
Voith IGBT-VVVF
Traction motorsThree-phase AC induction motor (enclosed-type)
Power outputOriginal: 125 kW (168 hp)
Refurbished: 170 kW (230 hp)
Acceleration1.1 m/s2
DecelerationService: 1.3 m/s2
Emergency: 2.08 m/s2
AuxiliariesRefurbished:
Voith EmCon I1000-9AU traction inverter with VPort IO control unit, Auxiliary inverter
Power supply34.5 kV AC
HVACAir-conditioned; roof-mounted duct type (2 units per LRV)
Electric system(s)750 V DC overhead wire
Current collection methodSingle-arm pantograph
UIC classificationBo′+2′+Bo′
AAR wheel arrangementB+2+B
Wheels driven8 wheels in motor bogies out of 12 wheels per LRV
BogiesOutside-frame type
Safety system(s)ATS, ATP
Track gauge1,435 mm (4 ft 8+1⁄2 in)
SeatingLongitudinal-type
Notes
Specifications are based from these references.[1][2][3][4][5][6][7]

The LRTA 1100 class is a high-floor LRV of the Light Rail Transit Authority (LRTA) in Manila, Philippines, which began operation in 1999.[3][8]

Purchase[]

The LRT Line 1 in Metro Manila reached its capacity in the 1990s. As such, expanding the capacity of Line 1 was needed. Initially, 32 cars with identical specifications to the 1000 class trains were planned to be ordered for the 32 two-car trains operating at the time so that each train would consist of three cars. However, with the increasing transport demand, four-car trains were instead ordered.[9]

On October 18, 1996, Hyundai Precision signed a contract with the Light Rail Transit Authority to produce 28 cars (7 sets) for the LRT Line 1. These cars were produced between 1997 and 1998 as its first manufactured light rail vehicle.[3] The capacity extension project was due to traffic congestion and air pollution, which in turn led to an increased demand for public transport in Metro Manila by the LRT Line 1.[10][11][12][13][14]

The handover ceremony and test-run of the 1100 series LRV was done with former President Joseph Estrada and former Vice-President Gloria Macapagal Arroyo in 1999.

Design[]

Structure[]

The train car body is made of stainless steel, and the LRV design is a 6-axle rigid body consisting of two articulated cars. Each LRV has four sliding pocket-type doors per side.[1]

Similar to the 1000 class, the 1100 class have cheatlines of blue and yellow that run through its sides. The trains also served as a prototype for future LRVs made by Hyundai Precision, which bears resemblance to the trains used in the Adana Metro and the Istanbul T4 Line.

Each light rail vehicle has two roof-mounted air-conditioning units. In total, there are eight air-conditioning units in a four-car train set.[1]

  • 1100 class train approaching Carriedo station in June 2020

  • Image shows stanchions, ACU vents, and briefly, the builders' plate.

  • A refurbished 1100 class train in June 2021. Note the new controller box under the door that has been supplied by Voith.

Interior[]

The trains have longitudinal seating. A wheelchair provision is present near the articulated portion of the intermediate cars.

  • 1100 class interior.

  • 1100 class train with seats removed, showing wheelchair space.

Bogie layout and traction unit[]

The bogies are of outside-frame type. Each LRV has three bogies consisting of two motorized bogies at the ends of the LRV and one trailer bogie under the articulation.[15] The primary suspension is a chevron rubber spring, while the secondary suspension is an air suspension, similar to the 1200 class.[4]

Traction control system is IGBT-VVVF type. The traction motor is a three-phase induction motor (enclosed-type). The original traction motors produces 125 kW (168 hp), while the new traction motors installed during the refurbishment period produces 170 kW (230 hp). The trainset produces a distinct high-pitched acceleration sound that is unique to the Adtranz VVVF controller used, a trait present in the train's derivative models.

The original VVVF controller is supplied by ADtranz, while the new VVVF controller installed during the refurbishment period is supplied by Voith.[15] The change of VVVF controller is due to Adtranz no longer able to supply spare parts as it changed management and ownership, as well as general modernization of the fleets.

Formation[]

  Four-car configuration
Car No. 1 2 3 4
Designation[4] MC M M MC
Numbering[16] 1101A 1101B 1102A 1102B 1103A 1103B 1104B 1104A
Seated[4] 78 82 82 78
Standing[4] 252 267 267 252
Total[4] 330 349 349 330

Details of the car designations are listed below:

  • MC - motor lead car
  • M - motor car

Operations[]

The 1100 class entered service in 1999, which raised the line's capacity by half[17] from a carrying capacity of 18,000 passengers per hour per direction to 27,000 passengers per hour per direction.[18] After 2001, many vehicles left the service owing to problems in operations and maintenance.[19] Although spare parts had been substantially given in 2004, 14 cars remained out-of-service due to the lack thereof as of 2013, with two cars involved in a collision.[20][21][22][23]

In addition, these trainsets are commonly used as "skip trains" or trains meant to target a particular station due to extremely high volume of passengers, especially during rush hours. However, these trainsets now stop at all stations when Metro Manila was placed under General Community Quarantine in June 2020 (and eventually, the alert level system in September 2021) as a response to the COVID-19 pandemic.

The 1100 class trains operate in a 4-car configuration. However, there are rare occurrences of 1100 class trains operating in a 3-car formation, this happened in March 2021.[24]

Refurbishments[]

Before the rehabilitation of the 1100 class trains, 2 out of the 7 sets remained in service. One of the train units was also involved in a collision as well, causing it to be put out of service due to damaged train body.[2] Rehabilitation was initiated by the Light Rail Manila Corporation in 2018, which aimed to restore the inactive fleet into serviceable conditions and increase the capacity of Line 1. In February 2018, LRMC and Voith signed an agreement to refurbish the said fleet which includes the control devices, traction systems, and automatic diagnostic displays of main circuits.[25][26] The refurbishment was carried out between 2019 and 2020 and 6 out of 7 sets returned to operation with an extended vehicle life.[15]

Incidents[]

  • Two 1100 class trains, LRVs 1107 and 1120 were involved in a collision.[2] LRV 1120, however, was subsequently repaired and refurbished in 2019.
  • On November 27, 2017, a 1100 class train door malfunctioned after a passenger forcibly opened it at Vito Cruz station, causing the sensor to malfunction. The train continued its journey with the door left open, and a passenger recorded this incident on camera.[27]

See also[]

Philippine rolling stock manufactured by Hyundai Rotem[]

References[]

  1. ^ a b c DOTC & LRTA 2012, p. 10.
  2. ^ a b c JICA 2013a, p. 5-2.
  3. ^ a b c Roteco 1999, p. 1217.
  4. ^ a b c d e f JICA 2013b, p. A-26.
  5. ^ JICA 2013b, p. B-3.
  6. ^ JICA 2013a, p. 12-87.
  7. ^ "Manila shutoken no kōkyō kōtsū seibi ni kansuru kenshū-yō sofuto seisaku jigyō riyō tebiki-sho" マニラ首都圏の公共交通整備に���する研修用ソフト制作事業 利用手引書 [User guidebook for the production of training software for public transport maintenance in Metro Manila]. Nippon Foundation. 2011. Retrieved May 27, 2020.
  8. ^ "Managing Safety in LRT-1" (PDF). LRTA. May 27, 2020. Retrieved December 2, 2019.
  9. ^ JICA 2004, p. 3-4.
  10. ^ "ODA ���える化サイト LRT1号線増強事業". Japan International Cooperation Agency. Retrieved May 27, 2020.
  11. ^ DOTC & LRTA 2012, p. 30.
  12. ^ DOTC & LRTA 2012, p. 9.
  13. ^ JICA 2004, p. 1-2.
  14. ^ JICA 2013b, p. A-25.
  15. ^ a b c "Electric traction system Modernization of light rail trains Light Rail Manila Corporation". Voith. Archived from the original on November 3, 2021. Retrieved November 3, 2021.
  16. ^ "マニラLRT1号線車両紹介2nd Generation Train" (in Japanese). Retrieved December 12, 2021.
  17. ^ DOTC & LRTA 2012, p. 15.
  18. ^ "The Line 1 Capacity Expansion Project (Phase I)". Light Rail Transit Authority. Archived from the original on May 17, 2006. Retrieved January 11, 2022.
  19. ^ DOTC & LRTA 2012, p. 14.
  20. ^ JICA 2013a, p. 3-14.
  21. ^ JICA 2004, p. 9.
  22. ^ JICA 2013a, p. 5-3.
  23. ^ Light Rail Manila Corporation (March 17, 2017). "Trains of the LRT Line 1 in history". Facebook. Retrieved May 25, 2021.
  24. ^ Ang Litratista ng Daang-Bakal. LRT1 Rare 3-car Generation 2 LRV Spotted (16:9). YouTube (video). Retrieved June 6, 2021.
  25. ^ Pelea, Jet (February 21, 2018). "LRMC, Voith sign agreement for P450M repair of more trains for LRT–1". Retrieved May 27, 2020.[permanent dead link]
  26. ^ Louella Desiderio (February 23, 2018). "LRT-1 operator taps Austrian engineering experts". Philstar Global. Retrieved May 27, 2020.
  27. ^ Bacungan, VJ (November 28, 2017). "WATCH: LRT-1 train runs with open door". CNN Philippines. Retrieved July 11, 2021.

Further reading[]

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