A Jam Factor rating is provided that represents the status along a
specified driving route. The driving route is specified such that the
route includes at least one road. A free flow travel time is calculated
for the specified route. Then, the total delay is calculated for the
specified route. The free flow travel time and the total delay are summed
to obtain the total estimated travel time along the specified route. A
delay multiple is then calculated by dividing the total travel time by
the free flow travel time. The Jam Factor rating is then calculated based
on the delay multiple.