Guidelines for road design assessed : the validity of existing guidelines for the design of urban and rural distributor roads and the design of through roads. This report discusses the development, the application, and the validity of guidelines for road design in the Netherlands. This is done on the basis of a questionnaire survey that was held in four countries: Germany, the United Kingdom, Ireland and the United States. Furthermore, the three most important guidelines in the Netherlands: ASVV (urban traffic facilities), the Handbook for Road Design (rural roads) and NOA (motorways) are reviewed and the experiences of users of these guidelines (road designers and road managers) are investigated. This report is part of a joint research project carried out by SWOV, the Directorate-General for Public Works and Water Management, the Information and Technology Platform for Infrastructure, Traffic, Transport and Public space (CROW), and Delft University of Technology. The ultimate goal of this project is to provide a scientific basis for the relationships between road safety and road design. To this end, each of the above guidelines was assessed to determine which design elements are inadequately supported form a road safety perspective and require further study. These elements were then prioritised and a research programme developed.
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