In 1978 the city of Amsterdam conducted a trial with road humps. As a start 15 humps were constructed. The trial was viewed as successful, and after comparison with experience elsewhere road humps were used on a larger scale. In march and November 1980 the effectiveness of road humps and the attitudes towards them of residents of the streets involved, were studied. Remarkably, there is a clear decrease in the positive opinion on aspects such as crossability, safety, speed and livability. A small majority still holds a positive opinion. The idea that frequent users would have a different, more positive opinion of the effects of road humps was not confirmed. Considering the fact that the construction of the road hump requires a comparatively high investment depending on the situation 6000-10000 dfl, it is necessary to reconsider if road humps are useful everywhere when the city budget is faced with considerable reductions. For the covering abstract of the conference see IRRD abstract no 264967.
Samenvatting