The VAL System

The VAL System

Line 1

The stations

Sud Lingotto – Bengasi extension

Ovest Collegno- Cascine Vica extension

Characteristics and performance

The Turin metro system is the first  in Italy to use the VAL, (Veicolo Automatico Leggero – Lightweight Automatic Vehicle) technology.  This technology relies on an Automatic Train Control (ATC) system – a system for automatic piloting of trains – designed specifically for VAL trains, that guarantees maximum safety.


In addition to its reputation for reliability and safety, the VAL technology was chosen because it is particularly suited to the characteristics and requirements of the Turin metro.  The  transport capacity of the system  - with a maximum forecast of 15,000 passengers/hour in one direction- and, its limited dimensions (just 2.08m wide), make it ideal for  Turin’s urban environment, ensuring flexibility, and low operating costs.

The totally automated driverless trains  are controlled by remote controls and telemetry from the Control and Command Station. Station operators are able to  intervene to modify the system status, the number of trains on line, the operating parameters, etc. The Control and Command station is situated in the Technical Facility in Collegno, where the depot, workshop and test track are also located.

The VAL technology and Automatic Train Control (ATC) system  were designed to guarantee maximum safety and boast some of the most advanced design features in the sector, including:

  • fully automated operation (without personnel on trains and in the station);
  • redundancy in the system that provides excellent capacity to manage breakdowns;
  • minimum time intervals between trains in the system -  as low as 69 seconds;
  • telesurveillance and telemetry of the entire service (trains, line and station systems); and
  • prevention of collisions and risks of excess speed through use of the ATP (Automatic Train Protection) system.

The system also has a series of other safety features such as:

  •  automatic platform doors to prevent accidental falls;
  •  emergency walkways easily accessible to train users along the entire line;
  • smoke detectors and fire prevention devices on trains and in stations;
  • the ability of the Control and Command Station operators to insert and remove trains by remote control and telemetry.

The Control and Command Station operators have a video surveillance, intercom and public address system through which they can monitor operations and keep passengers informed of any issues.