Singapore is known for its successful implementation of land transport management measures in the form of car-use restraining schemes and car-ownership control policy. This paper presents a study that examines how these management measures have affected the travel characteristics of car owners in Singapore. This is achieved by analyzing the changes in passenger car travel characteristics from 1990 to 2005. In 1990 and again in 2005, a vehicle-based travel diary survey was conducted to determine the travel characteristics of car owners. For each participating car owner, the details of all trips made over an average period of 4 weeks were collected. The 1990 survey covered 115 cars and generated 11,638 sets of trip data, while the 2005 survey involved 108 cars that produced 11,336 sets of trip data. These data were processed to provide information of travel characteristics in travel speed, travel distance, travel duration, trip purpose, passenger occupancy level, time that travel was made, and the choice of road class. Comparisons of the car travel characteristics in 1990 and 2005 were made to identify major trends of changes. An attempt is also made to relate these changes to the land transport management measures and policies implementedduring the 15-year study period. (Author/publisher).
Abstract