Latest Contributions by JaySandhu

‎01-29-2019

You can first make a network dataset from your streets shape files so that you can route on it. Make sure your Origin and Destination route point pairs have a common ID that can be used to match them up during route solving. You can create a new route layer. Then load the origin set of points making sure that you map the ID to the ROUTENAME property. Then load the destination set of points making sure that you map the ID to the ROUTENAME property. Now you have basically told the route layer to solve multiple routes like A to B, C to D, E to F, etc., Solve the route layer and you will have all the OD route pairs solved. You can read more about ROUTENAME here: Route analysis—Help | ArcGIS Desktop Jay Sandhu

‎01-28-2019

Just to update this thread, Leon was able to successfully solve the OD Cost Matrix Layer and get the distance results he needed. Jay Sandhu

‎01-24-2019

You can definitely use your local StreetMap premium data and the OD Cost Matrix Solver (will work faster than the Closest Facility if you do not need the actual route geometry returned). However these network analyst solvers return back the shortest path distance. They do not return back Euclidean or Manhattan distances as those are based on the coordinates of the locations and not on the street network. Jay Sandhu

‎01-10-2019

You can use the GP tool to get to the traversal results. Copy Traversed Source Features—Help | ArcGIS Desktop

‎12-21-2018

VRP does not have any additional multi-processor support. The process is usually CPU bound, so having a faster computer CPU like an I7 and/or faster disk (Solid state drive) will help speed up the solve times. The fast disk is to hold the network dataset as well as the computer TEMP folders. Jay Sandhu

‎12-21-2018

OD with 1 facility will return the closest. Specifying a cutoff limits how far it will search out from the origin before giving up. It is always a good idea to have a cutoff in case you have a large network and there are unreachable portions of the network (due to connectivity issues or barriers) which can cause a complete search of the network looking to reach destinations that are not reachable! The output lines feature class only has what was found. So if some origins do not have a destination within the cutoff, they will not be included. Setting the output lines to none will be slightly faster but may not be measurable for small output. Jay Sandhu

‎12-20-2018

OD and CF are similar but OD runs faster as it does not need to keep track of the traversal results and return route geometry. When you run these solvers with a 60 minute cutoff, it is quite efficient as they just ignore the destinations that were not encountered once the 60 minutes has been searched. The return list of destinations (in the line feature class) has a destination rank field and is sorted on it. This tells you the closest, second closest, etc., destination. You should be able to select all the rows where destination rank is 1 and get the closest to each origin without having to run any summary statistics. AND if you only need 1 closest, then why not solve for 1 destination in the OD solve? I do not understand why you are comparing against CF? As far as performance, it depends how far apart are all the points and how many are in the 60 minute cutoff as it takes a while to write out the results to the line feature class. For example if there are a 100 destinations within 60 minutes of each of the 350K origins, it will create 35 million rows. Jay Sandhu

‎12-18-2018

To solve all the OD pairs, I hope you have loaded them into One route layer with the routename property. Once you solve the route layer, you can run the GP tool, Copy Traversed Source Features. This will create a new line feature class that has all the roads that were traversed by all the OD pair routes. Now you can count how many times the SourceOID is repeated. For example you can use the GP Frequency tool and with the SourceOID as the frequency field and summary another field like the commuter count. Jay Sandhu

‎12-06-2018

Most likely the spatial index on the streets feature class that makes up the network dataset (or the points you are loading) is missing or stale. See below for information on how to update it: Rebuild a spatial index—ArcGIS Help | ArcGIS Desktop

‎11-15-2018

It is hard to know what could be going on without examining the data, but you can start by checking the stops Status field. This is set to Ok if a route was found to it. Select all the stops where the Status is not OK and see what's the status and see what in the network is preventing the routing (e.g., restrictions, disconnected network, etc.). Jay Sandhu

‎11-15-2018

If your data is many stops per truck id, rather then iterating over each set of stops, why not load them all into one route layer but map the truck id to the ROUTENAME property? That way multiple sets of routes (one per truck id) will be loaded into one route layer and all will be solved with one solve. Then you can export them out as needed. Read more on ROUTENAME here: Route analysis—Help | ArcGIS Desktop Jay Sandhu

‎11-14-2018

>What I need to do is find all intersections that are--as close as possible--equidistant to the central bus stop and the outside edge of the polygon they all fall within. Have you looked at Service Areas in Network Analyst. This solver produces drive time polygons up to a specified distance or time (break values) away from a feature. So you can use your central feature as the facility and drive out X miles. Then select the points that fall on or near the polygon boundary and count them. Repeat for different break values for what ever criteria you have. Service area analysis layer—ArcGIS Pro | ArcGIS Desktop Jay Sandhu

‎11-07-2018

Most likely there is some issue with the network dataset. Have you done a simple route on that network to make sure you are able to find correct paths? Also, what does the "two different feature layers" in your description mean? >I created a network dataset using a road network (in arccatalog), two different points feature layers. Is it possible that you have included the incident and facility point feature classes as sources in the network dataset? If yes, then if they are not directly on line features, they will become stand alone junctions and your incident and facilities in the closest facility layer will snap to these stand alone junctions and not find any paths in the network. In this case, remove these two point sources from the network dataset and rebuild the network and then create a CF layer and solve. Jay Sandhu

‎11-05-2018

If the timber volumes are attached to the street features of your network dataset, then you can create an impedance attribute called TimberVolume and load it from the field in your street features. Build the network. Now when you solve a route analysis minimizing length, you can choose to accumulate another impedance attribute. You can pick the TimberVolume. Now when the path is returned it will have the total volume on it. You can then run the Copy Traversed Source Features and this will create a line feature class of every edge that was traversed by the path and it will have the individual accumulates on each edge. Look up the accumulate attributes on route tool: Make Route Analysis Layer—ArcGIS Pro | ArcGIS Desktop And traversed features here: Copy Traversed Source Features—ArcGIS Pro | ArcGIS Desktop Jay Sandhu

‎11-02-2018

The first obvious thing to check is that the published routing service has the oneway restrictions turned on and not off as part of the service. You should be able to bring up the properties of the route layer in ArcMap that was used to publish the routing service. Jay Sandhu

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Date Last Visited	‎05-29-2026 01:54 PM

My Ideas

Latest Contributions by JaySandhu

Re: Arcmap Network Analyst ? How to derive route length for 50000 point pairs?

Re: Multiple Routes to one destination

Re: Multiple Routes to one destination

Re: Calulating number of turns along a route

Re: Network analyst and multiproccessing

Re: Performance Comparison: Large Scale OD Matrix Summarizing versus Closest Facility

Re: Performance Comparison: Large Scale OD Matrix Summarizing versus Closest Facility

Re: How to sum overlapping segments of routes created by Network Analyst Route tool solver

Re: Why does it take so long to load stops using Network Analyst?

Re: Network analyst routing with multiple trucks

Re: Network analyst routing with multiple trucks

Re: Something Similar to Central Feature Tool?

Re: Closest Facility Error

Re: Accumulate timber haul volume over a road network.

Re: Routing Service ignoring one-way restriction

Re: Creating a maximum walkshed around each point

Re: Closest Facility - Remove Facilities and Incid...

Re: Polygons for Best Dump Site By Site Cost and T...

Re: Delay in routes

Re: Delay in routes