Communications Based Train Control (CBTC) 

Trainguard MT is a high-performance CBTC system which lets operators maximize their network capacity and throughput. Headways of 90 seconds or less are achieved by using the real moving-block principle for train separation in combination with continuous, bi-directional communication and free-propagation radio.

Trainguard MT can operate at different train control levels. In suburban and commuter areas, where the required headways and train intervals are medium, intermittent train control is used. In metropolitan areas, where minimal headways and short train intervals are essential, continuous train control provides the required performance. By offering different train control levels, Trainguard MT is a highly scalable solution in terms of functions, performance and costs.

Trainguard MT optimises lifecycle costs by reducing the number of outdoor elements to a minimum and operating the trains with an energy-optimal driving algorithm. Trainguard MT uses fully electronic computer boards that are maintenance-free. Trackside transponders (Eurobalise) do not need external power supply or battery power and are maintenance-free.

Trainguard MT can handle trains with different train control equipment at the same time in the same network. This allows for mixed fleets to be used on the same line, i.e. both Trainguard MT- and ETCS-equipped trains can be operated together. Trainguard MT is therefore the optimum choice for mixed-traffic environments.

Trainguard MT with continuous train control features a bi-directional radio transmission channel (CBTC) as well as real moving-block functionality in combination with comprehensive ATO capabilities. Train separation according to the moving-block principle results in minimum headways, thereby enhancing system performance significantly. Color light signals can be reduced to a minimum or even completely omitted. In CTC operation, the energy consumption of trains is optimised by intelligent ATO algorithms.

Intermittent track-to-train communication allows fixed-block operation with continuous supervision and already offers automatic train operation (ATO) functionality. The intermittent train control level can be used for parts of the line with lower headway requirements or as a temporary system during refurbishment and switchover periods.

Trainguard MT also supports fall back levels, which still provide basic signalling functions in degraded situations.

The train is driven automatically from station to station and the driver merely initiates train departure.

Train movements are fully automated and a driver is no longer required. Passenger transfer, automatic departure and reversals are handled by Trainguard MT. An attendant is present onboard the train to manage at least emergency situations.

At this level of automation, additional safety-related measures are needed because there is no staff onboard a train. Safe departure and arrival of the train, including door closing and opening, is controlled automatically.