Indian city Hyderabad has opened the country’s longest elevated corridor worth $129.8m (RS 600 crore).

The 11.6km PVNR express way is a four-lane divided carriageway that connects Mehidipatnam in the heart of the city to the International Airport in Shamshabad on the city’s outskirts.

The road allows two-way traffic at speeds of up to 60kmph, shortening the trip to the airport by more than 30 minutes.

The expressway features 328 pillars, a 3.9km-long trumpet interchange, an anti-glare lighting system and soundproof walls, and has been built using a pre-fabricated segment and overhead grid launcher technology.

The project has been carried out by the Hyderabad Metropolitan Development Authority.

The expressway will allow speeds of 100kmph when additional ramps are ready by March 2010.