The Outer Ring Road, officially State Highway 234 (SH 234), is a major transport corridor along the periphery of Chennai Metropolitan Area (CMA) by the Chennai Metropolitan Development Authority (CMDA). It is 62 km long connecting GST Road at Perungalathur, GST Road at Vandalur, NH 48 (GWT Road) at Nazarethpettai, NH 716 (CTH Road) at Pattabiram to NH 16 (GNT Road) at Vijayanaallur and to TPP road at Minjur. On 29 August 2010, the then Tamil Nadu Deputy Chief Minister M. K. Stalin laid the foundation for the first phase of the project from Vandalur to Nemilichery covering a distance of 30 kilometres (19 mi). The Chennai ORR generally covers Avadi North, West and South, Redhills, Minjur and Tambaram neighbourhoods. Chennai Outer ring road had a plan of Chennai metro rail CMRL which is going to build up at gap between two roads. From Wikipedia
