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Metro for the Kingdom of Saudi Arabia in the Middle East

67 driverless two- and four-car metro trains for Riyadh, Saudi Arabia

Riyadh’s rapidly growing population can look forward to state-of-the-art, air-conditioned metro trains.

Mobility for an extreme climate

State-of-the-art metro system relieves congestion

Riyadh’s expanding economy has seen rapid urban growth, with a population set to increase from current 6.5 million people to 8.3 million people by 2030, hence making the need to have a public transport system paramount.

To mitigate its urban transit problems, the city is currently executing the world’s largest public transit project comprising six metro lines with a total route length of 176 kilometers, as well as 956 buses covering 1,150 kilometers of route length. Three consortia are involved in the metro rail project, including the BACS consortium, led by the U.S.-based Bechtel Company with the local construction companies Almabani and Consolidated Contractors Company, as well as Siemens.


In October 2013, BACS consortium was awarded the contract by Arriyadh Development Authority (ADA) – the executive arm of the High Commission for the Development of Arriyadh, which is in charge of building the Riyadh Public Transit System, the first project of its kind in the Kingdom of Saudi Arabia. Siemens delivers a total of 67 metro trains for lines 1 (Blue) and 2 (Red) of the Riyadh metro system as part of a turnkey solution. Both lines combined, have a total route length of 63 kilometers.

Metro trains for Riyadh

Siemens metros bring mobility to one of the world’s largest metro projects

The 41 four-car and 26 two-car driverless "Riyadh Metro Model" vehicles based on the Inspiro platform are designed with the region's climate in mind. A higher capacity air conditioning system ensures sufficient cooling power to keep passengers comfortable even in extreme heat. Special filters and sealing systems also prevent sand from entering the vehicle components and passenger compartment.


In addition, implementation of the Inspiro design solutions ensure optimized energy consumption, low maintenance costs, and high recyclability of the trains at the end of their service life. The trains meet the high fire protection requirements NFPA 130 and EN 45545.

Highlights of the metro trains for Riyadh

  • Fully automated operation – state-of-the-art automation system for routes and driverless train operation (GoA 4)
  • Passenger comfort – passenger compartment (divided into First Class, Family Class and Single Class) is comfortably furnished and offers a comprehensive passenger information system
  • Train configuration – the vehicles are either two-car or four-car trains, depending on the capacity required on the lines.
  • High passenger safety – thanks to safety systems such as a CCTV system, derailment detectors and fire safety according to NFPA130 and EN45545
Design concept

The French design bureau Avant Première and Siemens developed the interior and exterior design of the trains. The train design concept reflects the dynamism, elegance, and technological progress of Riyadh. The technical specifications for rolling stocks were developed by ADA.

Fully automated operation

The trains are equipped for fully automated, driverless, and conductorless operation (GoA 4), and have safety systems such as obstacle and derailment detectors as well as a fire detection system. A CCTV system transmits video data online from the passenger compartment to the control center. External cameras on the sides and ends of the train monitor the areas in front of the doors as well as the tracks at the front and rear of the vehicle.

Passenger compartment

For higher comfort, the First Class area with comfortable seats and more legroom is separated by an automatic interior door. Family Class and Single Class are separated by glass partition walls.

More information about our metros:
Metros from Siemens