(1) Some light rail systems use automatic signal system.
(2) Train operation using special track and station.
(3) Train design can reach up to 200 kilometers per hour. (The design of the highest speed, that is impossible to achieve at runtime, running the highest speed is based on the distance between the station and the center of gravity set)
(4) The light rail line one-way hourly traffic is $number million people (subway can reach $number million people).