The Haaglanden urban district drew up an accessibility plan known as "Keep it at Eight" with which to vary the departure times of motorists by influencing their behaviour. This study was commissioned by the Haaglanden urban district. The aim was to study the quantitative effects of various forms of adapted departure times on traffic flows along the main arteries in this urban district. Two possible forms of the "Keep it at Eight" measure were studied. According to the "directed approach", employees of a number of large companies in the urban district would be asked not to reset their clocks and watches in accordance with the daylight-saving times. According to the "provision of information approach", information approach", complete and relevant information would be provided on expected delays during various periods during and specifically before and after peak hours. In both approaches a distinction is made between the extent to which behaviour can be influenced in a positive, realistic manner or in a restrained manner. Four scenarios were drawn up and were analyzed using the DYNDART traffic model version 1.0. The results of the model scenarios show that by adapting the departure times of even a small number of motorists, a considerable contribution can be made to improving traffic flows in the Haaglanden urban district.
Samenvatting