Traffic calming schemes

Mini-roundabouts can generate accidents and should only be used where there have been more than four injury accidents in three years or as part of a traffic calming scheme. 

This document gives comprehensive advice on designing traffic calming schemes. There are a number of references to research work, mostly those referred to below. 

This document gives practical advice on introducing traffic calming schemes. It contains 80 case studies, many of them including Ijefore and after accident data. 

TRL Report 215, Review of traffic calming schemes in 20mph zones, 1996... 

Public realm and traffic-calming schemes (mentioned 7 times)... 

The main road safety risks identified in public realm or traffic-calming schemes were ... 

TRL Report 186 - Traffic calming - Road hump schemes using 75 mm... 

Road Safety Audits are being carried out on schemes designed by road safety engineers such as traffic calming, safer routes to school and local safety schemes. 

The list in Table 10.2 reflects those items that are difficult to fix within the constraints of the scheme, for example continuity of cycle route, and the Road Safety Auditors perception that more traffic calming may be required. It also reflects those items that the client feels are not safety issues, for example the implementation of antiskid surfaces at an improved set of signals or pedestrian facility where there is no record of existing wet skid accidents. 

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