Hello,

Does anyone know a good way to express the difference in travel time from the same demand to a set of facilities? Let's say you use OD cost matrix to find the closest distance to two seperate facilities. Also, is it useful to regress variables to travel time, and how could this be done?

It really relies upon the attribution of your network dataset. If it is every basic, the only 'cost' of traversing the network the solver can use is distance. If the network has a time cost / speed limit etc you can use this as an impedence value in the Analysis Settings window as opposed to distance. The OD solver output will then reflect that.

Of course if you assume your travel speed along the network to remain unchanged, a simple distance/speed calculation would do it. e.g. 10km/10kph = 1 hour travel.