ATM Class 4900

ATM Class 4900

Manufacturer	1st series: Fiat Ferroviaria 2nd series: Stanga
Constructed	1976–1978
Number built	100
Fleet numbers	1st series: 4900–4949 2nd series: 4950–4999
Specifications
Articulations	3
Length	29,210 mm (1,150 in)
Width	2,380 mm (94 in)
Height	3,750 mm (148 in)
Wheelbase	1,800 mm (71 in)
Weight	1st series: 31.8 t (70,000 lb) 2nd series: 31.6 t (70,000 lb)
Passenger capacity seats	60
Passenger capacity standing	210
Low-floor	no
Floor height	942 mm (37.1 in)
Engine power	1st series: 290 kW (390 hp) 2nd series: 296 kW (397 hp)
Traction motors	1st series: TIBB GLM 1354 K (I serie) 2nd series: AEG USG 6456r1
Power supply	600 V DC Overhead line
Current collection method	Pantograph
Gauge	1,445 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 Stanga, 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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