Fahrkurven ja, aber die richtigen

A road bend is defined as the minimum amount of space needed for a vehicle to make a proper turn. It constitutes a crucial factor in the process of road planning for which two alternatives can be considered. The theoretical approach is based on mathematics-related simulation models while the second one is the empirical method of actual road tests that are subsequently evaluated. The first altemative is known for its inherent inaccuracies and constraints; the second one has not yet proved its worth. By using the GPS survey method developed by the Bundeswehr University of Munich, it is possible to choose different scenarios for devising road bends that will be suitable for any type of vehicle -even under certain conditions such as a roundabout - with an accuracy rate of 5 mn. The findings can be displayed by digital means. With the help of clearly defined parameters for the vehides used for surveys, it has become possible to design road bends that take into account average drivers' behaviour in fairly realistic situations.