Congestion is still a big challenge for urban mobility while vehicle sharing, eCommerce and
autonomous vehicles will likely increase the unit veh-km of each vehicle and the density of
vehicles moving on the streets. Urban vehicle congestion pricing schemes have been taken
as effective solutions to this problem. This paper first reviews the research and application
cases of urban congestion pricing through recent years, although with the well-developed
theoretical basis and successful practices in Singapore, London, Stockholm, Milan, etc.,
public acceptance and equity concerns are still the main issues for such policies’
implementation. To circumvent this shortcomings of congestion pricing, a scheme of
tradable mobility credits is proposed as an alternative. As travellers are distributed mobility
credits within a specific urban area, which are allowed to be traded, those with low vehicleusing
demands can sell their credits to those with more demands. Therefore with this scheme,
people have the incentive to reduce the using of vehicles. This paper reviews the studies on
this new urban mobility management strategy and compared it with ordinary congestion
pricing schemes. Finally, we conclude the gap and possible directions for future work in this
area.
