Construction of the Tambaram-Chengalpattu elevated corridor on the Grand Southern Trunk (GST) Road is all set to commence in the next few months.
The project by the National Highways Authority of India is estimated to cost Rs 3,523 crore.
This development will provide relief to vehicles travelling to central and southern parts of Tamilnadu.
The six-lane elevated road will start at Perungalathur and end beyond Paranur toll plaza, easing heavy traffic congestion along the busy stretch.
According to NHAI officials, the elevated corridor will help reduce accidents, as heavy vehicles including buses, trucks and cars can take the elevated road, thereby decongesting the existing stretch.
The projected traffic on the 27-km elevated corridor in 2030 would be 63,605 passenger car units (PCUs) while the at-grade road would have more than 82,100 PCUs.
The elevated corridor would have entry and exit ramps at the Kilambakkam bus terminus, Potheri near SRM College and Mahindra World City.
According to the DPR, the length of the corridor would be 25.29 km, including 5.05 km at the second level over the existing grade separators and flyovers.