Using ArcGIS I want to output a raster for the distance from a set of points, however I want to do this using a road network, as opposed to just using the Euclidean distance function i.e. using Euclidean distance but along a road network as opposed to as the crow flies. Can anyone tell me away of doing this? Ultimately I'm trying to calculate a cost surface of how much it will cost to transport goods from supply points to an undefined market i.e not a specific point but anywhere within a region.
Yes this is possible, but it is most easily done with the Network Analyst Extension. This extension is super in depth, and it will allow you to create routes for more than one driver, adding more than one stop, giving them a predetermined maximum time they can drive, timeframes to be at each location, adding start and end times, etc.