Around 20 tunnels will need to be modified in order to ensure that semitrailers with a four-metre headroom can be transported on rail wagons. Changes will also need to be made to some 80 platform roofs and sets of signals.
Approximately 20 tunnels will need to be adjusted so that four-meter-high semitrailers can travel via rail cars. Likewise, modifications are needed for some 80 platform roofs and signal systems.