This data flow is used by the Provide Driver and Traveler Services function. It contains details of the physical geometry of each road segment, including the location of such things as road signs, bends, junctions, traffic lanes and their use, etc. For each route segment, it also contains the historical average link journey time and queuing time computed from data recorded over the last several months, and available for different time of the day/days of the week, to take account of peak travel times, weekend travel etc.

Sub Data Flows

Parent Data Flows

Associated PSpecs