Only 25% do there duty others i do not know! they only monitor signal! All road side parked vehicles cars and autos then how did you control the traffic,
------- Edited on 2017-01-14 -------
cannot say, because always traffic jam Royapettah and Mylapore
------- Edited on 2017-06-21 -------
Very Worst Auto Signal not working at arterial Anna Road it is very Shame. No. 1 place for Bribe.