South of Bristol, the road was diverted in 2001 to cater for an extension of the runway and installation of a Category 3 landing system at Bristol Airport. The route south of the city, despite serving the airport, is single carriageway and suffers from heavy volume of traffic at peak times, and congestion along Bedminster Down. From Bedminster Down the A38 follows West Street and East Street through the centre of Bedminster, but drivers from the south are advised by road signs not to follow the A38 into the city, but to use the A3029 (Winterstoke Road) to enter from the west, as this route has a greater capacity. As part of the "Greater Bristol Strategic Transport Study", a link road is under consideration to the south of Bristol. This is in part due to the congestion at Winterstoke Road and Barrow Gurney, both of which are very busy, especially the latter where the road can only accommodate travelling at one direction at a given time; and the incomplete Bristol Ring Road (A4174).