2

I am using ArcMap.

I have a national road network and I would like to divide it in several zones, so each zone would get the same amount of roads (from 150 to 250 km) - to get as equal zones as possible. Then, within each zone, I would like to find the best spot for roads maintenance facility, which would cover roads maintenance based on 1 hour driving distance.

I have tried ArcGIS Aggregate point to divide road network, Location-Allocation and Closest Facility from Network Analyst. The latter two, however, work only if I predefine roads maintenance facility location, which I wouldn't like to do in advance. The facility must be located on a road network. And actually each location on road network represent an alternative for roads maintenance facility.

For sure, both tasks are interconnected - defining zones and defining the best location for maintenance facility, so maybe I haven't been solving it in the right order.

Any ideas?

0

1 Answer 1

2

Grouping of roads is very complicated task. Optimal solution will take ages to achieve.

I tried the idea explained in this answer to Grouping village points based on distance and population size using ArcMap on a set of roads totaling 368 km in length and attempted to split it into 5 'equal length' parts. Picture shows result:

enter image description here

As one can see results are reasonable, because length per individual group is not far away from the target of 368km/5 = 74km.

If you'd like to know more about the approach, I suggest to use script and do the exercise at Graph/Network building and analysis of linked polygons in ArcMap.

So here is your idea for first question. Second task is trivial if you'll manage to group roads. I suggest to remove facility related part before you post get closed.

2
  • That`s great suggestion @FelixIP. However, I am new to the tools you are mentioning in your answer to Grouping village points based on distance and population size using ArcMap - so - my kind request is - could you describe the procedure in more simple words + which tools you exactly used? Many many thanks! Commented Sep 23, 2021 at 9:54
  • Well, try harder, perhaps read second hyperlinked post. It also has working script. Very little I can do more. You'll also need Python skills, because script won't work with more than 5k nodes. Some minor modification required. Alternative - pay me, which is not cheap.
    – FelixIP
    Commented Sep 23, 2021 at 19:21

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.