Effects of a tradable credits scheme on mobility management: A household utility based approach incorporating travel money and travel time budgets

摘要

We investigate the influence of a new mobility management measure, the tradable credits scheme (TCS), on the\uddaily travel mode choices of individuals. Generally, we assume the individuals’ travel consists of different modes,\ude.g. private car mode and mass transit mode. In order to control the rapid increase in use of the private car mode\udin an area, policy makers may wish to implement a TCS basing on the vehicle kilometre travelled (VKT). The\udeffects of the TCS are investigated in this paper based on a utility-theory travel demand model proposed by Golob\udet al. (1981), a household utility based model incorporating proposed travel money and travel time budgets. The\udempirical investigation is based on comparison studies of the short-term response and long-term effects with and\udwithout TCS. It finds that the implementation of TCS has not a clear impact to the value of time of household in\udthe short-term, and the presence of TCS does not affect the linear relationship between travel time budget and\udtravel money budget over long term. Numerical results demonstrate that the TCS will affect the travel distance of\udthe available transport modes differentially, according to different levels of annual household income.