If you've been to Tambaram station, you have probably seen this ramp. Tambaram station is very disabled friendly, that ramp is so that they can access the station easily. In fact, if you're 'physically challenged', you're given a concession at the ticket counter on the second floor, provided you come in person. Also, while that nice useful ramp is in place to get to the suburban rail ticketing counter, to get to the actual platform you have to use stairs. Sheer genius!