I need an ER diagram for a Bus Rapid Transit System (Brts) for a study.Please help me out with it as soon as possible.

er diagram of brts

Chennai Bus Rapid Transit System (BRTS) was a new rapid transit project taken up as an integrated part of Circular Corridor Project in India. Beginning at Adyar, the route will cover Saidapet, Jafferkanpet, Ramavaram, Puzhal, Manali, Chennai Central Railway Station, Lighthouse and will return to Adyar. The corridor will cover a dwastance of 70.3 kilometres (43.7 mi). The route of the elevated BRTS corridor was planned to run along the banks of Adyar river and Buckingham canal. The project was expected to be completed by 2013.