Map Routing, a la Google Maps?

Question

I\'ve always been intrigued by Map Routing, but I\'ve never found any good introductory (or even advanced!) level tutorials on it. Does anybody have any pointers, hints, etc?

Answer 1

I've yet to find a good tutorial on routing but there are lots of code to read:

There are GPL routing applications that use Openstreetmap data, e.g. Gosmore which works on Windows (+ mobile) and Linux. There are a number of interesting [applications using the same data, but gosmore has some cool uses e.g. interface with websites.

The biggest problem with routing is bad data, and you never get good enough data. So if you want to try it keep your test very local so you can control the data better.