Route search is performed in the middle of each balancing time interval for all OD pairs with demand. It is based on the impedances at this point in time, which means costs are frozen at the time of the search. In Illustration 142, this corresponds to the interpolated curve of travel time (FIFO tCur) which connects the points in time when the route search is performed. The impedance used for the search is derived from the definition in the general procedure settings and accounts for the travel times determined by the simulation and other temporary supply changes, e.g. speed, toll or time-varying attributes.
Route search can be suppressed during later iterations. A restriction of the shortest path search is, however, not recommended.
