CHILE: Metro de Santiago is to install three additional Railweight APC4000 automatic passenger-counting systems alongside seven already fitted.

The equipment works by weighing and identifying individual carriages to calculate the number of passengers on board. An initial survey was carried out to calculate a passenger’s average weight, and this is then used as the basis for the automated measurements.

Each weighing zone consists of a series of transducers mounted on the track, a TSR400 dynamic train weighing processor and an RFID reader. RFID tags identify the cars as they pass over the equipment. These zones are connected to the APC4000 server which then processes the resulting data for use by Metro de Santiago staff.

By knowing the weight of each empty carriage as well as specific seating and standing room, the system calculates how many passengers are on board as the train passes over it.