an Inter-change is a junction that uses a grade separation technique or ramping mechanism consisting of one or more ramps to allow the traffic flow from one or more highways through the junction even without actually crossing it or without disturbing the movement of other traffic streams. read more
The clover-shaped flyover at the Chennai Bypass-Poonamallee High Road junction in Maduravoyal was part of the Rs. 405-crore Chennai Bypass toll road project, which was implemented by the National Highways Authority of India (NHAI) for a distance of 32 km from Tambaram to Puzhal via Porur, Koyambedu and Maduravoyal. read more