For trains, and because of the new STI PMR standard (passenger with reduced mobility standard), automatic SIL2 systems are developed to detect the platforms and to deploy precisely a gap filler installed at one or more train doors. This platform detection system is very useful for ensuring people access in and out of the train.
Other systems are developed, one to ensure gap filler deployment installed on the platform, and deployed in front of the train doors, another to detect safely (SIL3) that nobody is staying between train door and platform door (closed), or on the track. Track safety monitoring systems are very important in case of PSD (platform screen doors / platform gates) installed on existing lines operating driverless, and with curved/curvy stations.
Linked to this thematic