Product: Routing J Server
Platform: Not Platform Related
How the time is calculated for a route.
How is the time calculated for a route? What is it based on, one driver might drive at a different speed to another, is it the speed restrictions on the route or is an average speed assumed?
The routing engine makes some intelligent guesses on the average speed for each segment and then add the individual times to find the time for the entire route.
There are 4 classes of road, Major, Primary and Secondary Highways and all other roads, each with an average speed. There is a further category for rural or urban, making eight possible combinations for a segment's average speed.
For example, if a road is listed as a secondary highway in an urban environment, taking into account traffic and traffic lights, the average speed might be 25 miles per hour. A major highway in a rural setting may have an average speed of 70.
Last Modified: 01/02/2001 09:52:27 AM