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Getting around in Sofia with Inspiro

20 three-car metro trains for Sofia, Bulgaria

In Bulgaria’s capital, the new metro line 3 will use modern Inspiro trains to reduce the strain on transportation networks and improve air quality.

Mobility for more growth

Relieving congestion in Sofia’s streets

Sofia is not only the capital of Bulgaria, it is also the economic center of the country. Nearly one sixth of the population lives here – more than 1.25 million residents. Some of the challenges facing the city include overcrowding on public transportation as well as significant traffic congestion on major roads.

To improve the air quality and adapt the inner-city transportation services to meet the growing demand, underground projects are planned and are already being implemented. This includes a new third metro line. It will extend 18 kilometers through Sofia as an east-west link serving 18 stations, running both at ground level as well as underground.


In September 2015, the operator of Bulgaria’s Sofia Metro, MEAD, awarded an order to Siemens AG to supply 20 metro trains. The order includes the option for an additional ten trains.

Metro trains for Sofia

The Inspiro for Metro Sofia

The Inspiro trains meet all requirements, including with regard to sustainability: The Inspiro platform was developed with a special emphasis on low energy consumption, optimized maintenance, disabled friendliness, and environmental considerations. At the end of its service life, up to 95 percent of the rolling stock can be recycled.


The driver’s cabin and passenger area are air-conditioned for maximum comfort. The pleasant, bright design of the interior area creates a subjective sense of safety and guarantees a pleasant ride.


The three-car trains are manufactured in collaboration with partner Newag SA and are intended for use on the new Line 3. The trains are expected to go into operation starting in 2019.

Highlights of the metro trains for Bulgaria’s capital

  • ­   Modern passenger comfort – thanks to air conditioning in the passenger area via two air-conditioning units per car
  • ­   High availability – through high redundancy in the drive and braking system
  • ­   Low energy consumption – thanks to a lightweight aluminum design with weight-saving cork-aluminum flooring and LED lighting
More mobility in Sofia

Longitudinal seats and four wide doors on each side of the car ensure maximum passenger capacity and rapid boarding and exiting at the stations. High redundancy in the drive and braking system additionally ensures that the vehicles remain in service.

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Metros von Siemens