I am developing a VB application which calculates a route.

If I know the current lat / long of a vehicle can I find the following

1. Has the vehicle left the route?
2. If on the route, what segment of the route is the vehicle currently on?

Thanks
Stew

It is easy to find out how far from the route a location is

objRoute.DistanceTo( objLoc )

If anyone knows how to do the 2nd part I would like to know.

This would be very difficult to do programmatically. From the location associated with each segment on the route you can get the lat/lon of the center of the segment, but there is no simple way that I know of to determine whether any arbitrary lat/lon is within a speficied distance of the route.

- Walt Cygan