Latest Contributions by JaySandhu

The network dataset creation wizard in ArcMap is very extensive and we are working hard towards getting all the network dataset property page UI/UX into ArcGIS Pro. So the ability to create network dataset with all these capabilities is still not there. In the meantime this blog may help some users: Create a Local Government Network Dataset  Jay Sandhu ... View more

You can watch some of the user conference presentations about Network Analyst: ArcGIS Online: Routing and Network Analysis: https://www.youtube.com/watch?v=cakVXmuB0ag&index=3&list=PLaPDDLTCmy4Z27yCYMJkyxj3WHtFBW08l&t=0s Network Analyst: Optimize Your Fleet of Vehicles with the VRP Solver https://www.youtube.com/watch?v=o7pgYgajM_g&index=8&list=PLaPDDLTCmy4Z27yCYMJkyxj3WHtFBW08l&t=0s Performing Network Analysis: Network Analyst: Performing Network Analysis Video | Esri  And obviously the doc about its capabilities: What is the ArcGIS Network Analyst extension?—Help | ArcGIS Desktop  Jay Sandhu ... View more

What network dataset are you using? Is it something you built yourself? What is the source of the data? Service areas go in all direction until they can't! So if it appears they stop too soon then it could be disconnected network or a restriction stopping travel on that road. On the NA toolbar, the second from the right icon is the network identify tool. Use it to click on the roads where the polygon stopped and see if those roads are "connected" to the roads that are not covered by the polygon. ... View more

What error do you get during build network? One thing you can check if your "edits" caused a lot of dirty areas to have been created. You can add the network dataset to ArcMap and then in the Table of Contents, right-click to bring up the properties and in the Symbology tab, turn on dirty areas. If their are a lot of dirty areas then they could be causing long build times. To get around that you can either delete the network dataset and re-create/build it or make an edit that causes a full rebuild like adding a new cost attribute to the network dataset and then deleting it. Jay Sandhu ... View more

Were you able to investigate it more and find the build log files?  ... View more

"navigate to %TEMP%  this is usually c:\users\<user name>\AppData\Temp and then search for a recent folder perhaps starting with the word ARC and look for a build.txt file"   ... View more

You can specify the location of the TEMP but not where to put the log file. I suggest that you start the build network and then while it is running, open the arc folder while it is still running. These folders are normally deleted when you exit ArcCatalog app. Jay Sandhu ... View more

The Build Network leaves a log file. You can open it in Notepad and see what messages are in there. The file is usually created in a temporary folder inside the system temp folder. To get to the system temp, in an explorer window, navigate to %TEMP%  this is usually c:\users\<user name>\AppData\Temp and then search for a recent folder perhaps starting with the word arc and look for a build.txt file. Jay Sandhu ... View more

When we were designing the route-system, some folks did not want to expose the section attribute table, but I lobbied for it to be visible as it was most useful  And then it became even more useful when we re-wrote the route/allocate products to be in Arcplot and wrote the results out to the RAT/SEC tables. Old memories! Jay Sandhu ... View more

You can either duplicate edges so that the two modes do not share edges which causes the problem you describe or you can add the turn restrictions that restrict jumping from one mode to another. Then you can set up a travel mode for car and another one for bus and turn on the appropriate restrictions for each mode. Jay Sandhu ... View more

Not sure what you are trying to accomplish. A node is place where edges meet. It cannot distinguish between the edges to do something different based on some attribute of that edge.  >(e.g. the node just representing a junction which is used by different type of modes; the nodes along a similar path which is used by mixed traffic but each node does not act as a transfer point)? You are talking about some solver behavior on how it should deal with that node. Are you writing a custom solver? In that case you can manage the connectivity and decide what do when you arrive at that node. There are various ways in a network dataset in how the connectivity at edge end points can be handled. One is with from/to elevation values on the edges, another is to use true 3D geometry of the edges, another is to use any vertex connectivity and yet another is to use sub-types. But in the end once a junction has some edges connected to it, the only way to restrict movement between a set of them is to add a turn restriction. Jay Sandhu ... View more

For your 1st question regarding the nodes:  Nodes can be restricted but then all movement through them will get restricted. So the way to restrict movement at junctions is to add turn restrictions. For question 2, each line feature is modeled as two edges in the network dataset representing the from-To and To-From directions. Each edge can have a different value. You can load these values from two separate fields when you are defining the network dataset evaluators.  For question 3, an edge can have "one" value for an attribute. So what ever value you want to distribute on that edge will apply to the whole edge. If you want more granularity then split the edge into smaller edges to apply your values to smaller individual pieces. Jay Sandhu ... View more

So 1188 facilities choose 1000 (even when 838 are fixed) are a lot of combinations! And solving for capacity does add another layer of complexity. So it can take some time to find a solution. I cannot estimate the time needed (based on what hardware/memory/etc that you are using), but it could be a while! Jay Sandhu ... View more

The amount of time needed to solve location-allocation will depend on the number of demand points, number of candidates and how many facilities you are choosing to locate. So it can definitely take a long time if the problem size is big. How many demand and candidates do you have and how many are choosing? Jay ... View more