AM5-M2 and AM4-M4

The AM5-M2 and AM4-M4 are two series of Alstom Metropolis heavy rail rolling stock that operate on lines M2 and M4 of the Budapest Metro.

AM5-M2
Manufacturer	Alstom Konstal
Built at	Chorzów, Poland
Family name	Metropolis
Replaced	81–717, Ev, EvA
Constructed	2009–2013
Entered service	September 7, 2012[1][2]
Number built	22
Formation	5 cars per trainset: Mc-M-T-M-Mc
Capacity	Trainset: 209 seats (Mc: 37, M: 45, T: 45)
Operators	BKV
Depots	Fehér út
Lines served	Line 2
Specifications
Train length	100.16 m (328 ft 7+1⁄4 in)
Car length	Mc: 19.846 m (65 ft 1+3⁄8 in) M: 20.156 m (66 ft 1+1⁄2 in) T: 20.156 m (66 ft 1+1⁄2 in)
Width	2,780 mm (9 ft 1+1⁄2 in)
Height	3,696 mm (12 ft 1+1⁄2 in)
Floor height	1,140 mm (44+7⁄8 in)
Doors	8 double
Wheelbase	2 m (6 ft 7 in) (bogies)
Maximum speed	90 km/h (56 mph) (design) 70 km/h (43 mph) (service)
Weight	Mc: 33 t (32 long tons; 36 short tons) M: 34 t (33 long tons; 37 short tons) T: 26 t (26 long tons; 29 short tons)
Axle load	14 t (13.8 long tons; 15.4 short tons)
Acceleration	1.13 m/s2 (3.7 ft/s2)
Deceleration	1.9 m/s2 (6.2 ft/s2)
Minimum turning radius	80 m (260 ft) (depot moves) 230 m (750 ft) (operationally)
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Notes/references
Source:[3]

AM4-M4
Manufacturer	Alstom Konstal
Family name	Metropolis
Operators	BKV
Depots	Kelenföld
Lines served	Line 4
Specifications
Train length	80 m (262 ft 5+5⁄8 in)
Car length	20 m (65 ft 7+3⁄8 in)

Since 2009, 22 AM5-M2 sets have been constructed for use on Line M2 with delivery to be completed by 2013. A further 22 AM4-M4 sets have been constructed since 2012 for use on Line M4 with delivery due to be completed by 2014.^[4][5]

On December 5, 2016, an accident occurred on Metro Line M2 which involved an AM5-M2 rolling stock. An incoming train collided with a waiting train at the Pillangó utca metro station. This was the first serious accident in the history of the Budapest metro. The accident did not result in a fatality, but according to the prosecution, a total of twenty-one were injured, five of whom were classified as serious.^[6]