VMS’s (so-called DRIP’s) can be deployed to provide queue length information or travel time information on available route alternatives. It is unclear what the response of the travellers to the different types of information is, and under which conditions or in which situations queue length information is preferred over the travel time information. If travel time information is provided, how can this information be determined from available traffic data? What is the impact of the quality of the information on its use and effect?
February 15, 2008