Report 313 Traffic calming - an assessment of selected on-road chicane schemes

Publication Year

1998

Document Status

Current

Abstract

Various types of horizontal deflections have been used in traffic calming to reduce the speed of traffic. Results in terms of effectiveness and public acceptability have not always been successful. Chicane trials on the TRL test track (1994), confirm the potential of chicanes as traffic calming measures and established relationships between mean speed and chicane dimensions. This Report describes a variety of on-road chicane schemes in terms of design and location, speed reduction and accident reduction. The speed reductions at these schemes were compared with those from the TRL trials and relationships between mean speed and 'path angle' have been developed. Local authority experience was used in compiling advice and raising issues relating to good and bad practice in the design and installation of chicanes.

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