Showing papers by "Paul W. Wilson published in 1989"

Scheduling costs and the value of travel time

Abstract: This paper analysises costs to workers arising from off peak work schedules. A discrete model of joint transportation mode and work start time choice is presented derived from mcfadden's conditional logit and tested logit formulations. Survey data, collected from the residents of 1111 vehicle owning households in Singapore in 1975 are used. The data collected include details of all journeys made during the 24 hour period prior to interview, as well as socio-economic data. Variables which define the following parameters are used in the analysis: travel cost; monthly personal income; cost of travel by mode divided by monthly income; in vehicle travel time; origin and destination work times; absolute value of difference between peak work time, start time and actual work start time; number of family members aged five or less; age and sex. The implications of these results upon transportation policy are discussed. Results indicate that transportation projects such as increases in road capacity, which may not reduce congestion levels, may be beneficial if workers are able to adjust their work start times toward the peak starting time. (TRRL)