In the framework of the National Transport Support Project, SWOV provided local experts in Chad with technical assistance on road safety. The assistance focused on the development of a comprehensive road safety strategy and physical road safety improvements on urban and inter-urban roads. The problem identification was based on the analysis of incompatibilities in the function, shape and use of roads. Based on this analysis, the following measures were advised: (1) Roads should be categorised to make their function self-explanatory; (2) Network planning should be introduced and ring roads for transit traffic should be provided; (3) Cross sections of roads should be improved. Low cost measures were provided for separation of motorised traffic and vulnerable road users; (4) Safe intersection design needs attention. Standard intersection designs were given for common intersection types in Chad. Low cost improvements of unsafe intersection designs were provided; (5) Traffic calming measures need to be taken to improve road safety; and (6) since inter-urban roads run through a great deal of villages, the design of urban sections of inter-urban roads needs special attention. A different design of T-junctions, the splitting up of roads into two one-way roads and the introduction of speed humps are effective measures. (A)
Samenvatting