The bypass was fully opened in both directions earlier
A multi-million pound bypass has opened to help reduce accidents and relieve motorway congestion at a roundabout in Warwick.
Longbridge Island bypass is a dual carriageway that bypasses the junction 15 interchange of the M40.
About 750,000 vehicles use the junction creating queues on the roundabout and slip road, the Highways Agency said.
There were 68 reported accidents at the junction in the past four years. The agency said accidents should now fall.
Work began on the bypass in March 2008, which was estimated to cost about £76.8m.
The northbound section of the bypass was opened by the transport minister Chris Mole on Monday.
The southbound bypass opened before the morning rush hour earlier.