Each toll plaza is described by visibility, segment code, location in the segment, and a list of data items for each toll booth, including lane use privilege code, default state (i.e., free, open, or closed), speed limit, and toll collection delay. The lane use privilege code is used to restrict the types of vehicles allowed to use a particular toll booth. For example, a toll booth can be designated to cars, ETC, HOV, or any vehicle. The speed limit sets an upper bound on the speed of the vehicles passing through the toll booth (for booths with manual toll collection, this speed limit is zero). Toll collection delay is the average time it takes for a vehicle to stop at the booth to pay the toll.
A vehicle will stop if it enters a booth using manual collection or
slow down to the speed limit if it is on an ETC lane. The service
time at a manual toll booth is assumed to have a negative exponential
distribution with mean 
and truncated at a maximum time, i.e.:
where:
