ATM Class 4900

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ATM Class 4900
Elettromotrice 4938 in Piazza Cordusio.jpg
Manufacturer
Constructed1976–1978
Entered service1976
Number built100
Fleet numbers
  • 1st series: 4900–4949
  • 2nd series: 4950–4999
Capacity
  • 60 (Seated)
  • 210 (Standing)
Operator(s)Azienda Trasporti Milanesi
Specifications
Train length29.210 m (95 ft 10 in)
Width2.380 m (7 ft 9+3⁄4 in)
Height3.750 m (12 ft 3+3⁄4 in)
Floor height942 mm (37 in)
Low-floorNo
Articulated sectionsThree
Wheel diameter690 mm (27+1⁄8 in)
Wheelbase1.800 m (5 ft 10+3⁄4 in)
Maximum speed60 km/h (37 mph)
Weight
  • 1st series:
  • 31.8 tonnes (70,000 lb)
  • 2nd series:
  • 31.6 tonnes (70,000 lb)
Traction motors
  • 1st series:
  • TIBB GLM 1354 K (I serie)
  • 2nd series:
  • AEG USG 6456r1
Power output
  • 1st series:
  • 290 kW (390 hp)
  • 2nd series:
  • 296 kW (397 hp)
Electric system(s)600 V DC, overhead line
Current collection methodPantograph
UIC classificationBo′ 2′ 2′ Bo′
Track gauge1,445 mm (4 ft 8+7⁄8 in)

The ATM Class 4900 is a series of articulated trams used by the ATM on the Milan urban tramway network.

They were built from 1976 to 1978 in two series, by Fiat Ferroviaria and , respectively, and were intended to be used on the future light rail lines, like the proposed circular line that should substitute the existing circular trolleybus line.

However such lines were never built, and the 4900 were used on the existing network.

Bibliography[]

  • Carlo Marzorati: Le nuove elettromotrici ATM 4900. In: ″Italmodel Ferrovie″ Nr. 202 (March 1977), p. 156–160.
  • Giovanni Klaus Koenig: Il tram a pianale ribassato: storia e sviluppi. In: ″Ingegneria Ferroviaria″, May 1985, p. 223–241.
  • Giovanni Cornolò, Giuseppe Severi: Tram e tramvie a Milano 1840-1987., Azienda Trasporti Municipali, Milan 1987.

External links[]

Media related to ATM 4900 at Wikimedia Commons

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