Steadily traffic flow in any mega city is very important. The traffic flow in Chandigarh is more important because with Union Territory it is the capital of two states Punjab and Haryana. In this study analysis the traffic flows on different routes. The smoothly flow of traffic insure the transport facility to passengers. In this calculate the time taken by buses toward destination, traveling time between the terminals, time schedule of try city buses. Mainly study focuses on the Chandigarh Transport Undertaking and his introducing Transport Grid system in Chandigarh w.e.f 23rd January 2006.