A22 Caterham Bypass
This road safety study was conducted in connection with a proposed residential redevelopment of agricultural land with sub-standard accesses onto a 50mph dual carriageway. It involved an investigation into recorded collisions along a 2.5km section of the A22.
Objectives and Challenges
Gateway TSP were asked to consider the collision record in the context of predicted changes to the number and type of vehicle movements following redevelopment.
The Highway Authority was concerned about the geometry of the existing accesses and traffic speeds along the A22 (the 85th percentile speed was measured at approximately 60mph).