topic Re: Solve route is too slow (if reordering is on) in ArcGIS Network Analyst Questions

Solve route is too slow (if reordering is on)

PanGIS — Tue, 10 Jan 2017 14:29:53 GMT

Hi,

me again

Trying to find the best route for my (about 1000) points.

I am using the network provided with StreetMap Premiun installed on my PC (everything I am using is on my machine)

I projected my data in the same GCS of ND (just for excluding any complication related to the transformation)
I set the environment rule for the processing extent as per my data extent (as I am using a huge dataset I thought that using this limitation could have been of help, but I am not sure if NA follows this env. restriction, doesn't it?)
Geoprocessing Background 64bit is installed (does it help? Do I need to set something in order to have this tool working?)
Set background processing enabled.
I use ArcMap 1041

I set the find route.

Impedance minutes (as I am using a visit time I think is the best way)

I use a start time (morning 8:00)

reorder points but preserve the first one.

use hierarchy

ignore invalid

I have tried but using some restrictions and also in "just go" mode (ignoring almost all the limitation).

It takes about 50mins/1 hour and ArcMAp is on (Not Responding)

I also tried to do this: as per my first analysis I have already an order, so I reorderd the OBJID according to this order. If I run the analysis again saying "reorder points" it takes again 1 hour even if the points are already in the right order.

If I run again without reordering it takes 2 minutes.

Now if I want to include some barriers and I want to recalculate the route, same as above if I reorder: 1 hour (of course I need to reorder since I've got a barrier)

If I don't, again a couple of minutes.

What I am asking here, is it acceptable having to wait this huge amount of time for a route?

I also tried with a smaller dataset, and the time decreases as the number of points decreases.

I tried to run the same analysis on PRO and I stopped the process after 1h and 1/2.

With Arcmap the resources' usage doesn't go beyond 40-50%.

Thank you.

Re: Solve route is too slow (if reordering is on)

DanPatterson_Retired — Tue, 10 Jan 2017 17:33:55 GMT

Interesting problem... One thing I have seen in the past is route planning with many stops along the same street with a relatively close spacing with no other logical option but to go the whole length of the street in any event. In such cases, I have seen processing requirements drop when the frivolous/extraneous points are remove and just key locations (ie intersections) retained. Basically, just because you have a 1000 points, doesn't mean they are all necessary to solve for the route... What does your data set look like? an what are the conditions and constraints in your network?

Re: Solve route is too slow (if reordering is on)

MelindaMorang — Tue, 10 Jan 2017 22:57:26 GMT

Hello, Pan. I wouldn't expect you to run out of memory solving a Route with 1000 stops. I recommend you talk to Esri Tech Support. http://support.esri.com/contact-tech-support

They can look at your data, and if they can't resolve the problem, or it proves to be a bug, they can submit a ticket to the Network Analyst development team.