Samenvatting
Recent research shows that during the past decades the average travel time of the Dutch population has probably increased. However, different data sources show different levels of increase. Possible causes of the increase in average travel time are presented here. Increased incomes have probably resulted in an increase in both costs and benefits of travel. The increase in travel time may also be due to benefits having increased more rapidly than costs. Costs may even have decreased due to the increased comfort level of cars and the increased opportunities offered to make double use of one's time (for example, working in a train). (A) For the covering abstract of the conference see ITRD E206647.