Am looking for a route planner for say 5 postcodes to get the shortest route to save time & energy
This is a classic travelling salesman problem. There is some software based on OpenStreetMap for that. http://wiki.openstreetmap.org/wiki/Traveling_salesman
You might find this package relevant: http://www.mjc2.com/free-vehicle-routing-software.htm
Good links , thanks for posting !
We can help you find a developer....
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