Latest Contributions by JaySandhu

There are numerous options for "delays": Network Analyst can apply delay via barriers. Barriers can either be point, line or polygon. They can either restrict or scale cost of the existing network feature. So you could add a line barrier with a scaled cost of 2 and it means it will take twice as long to go through that edge. Network Analyst also supports real-time traffic feeds where you can get the exact slow down now and compute a path based on current travel times. It also supports historical or predictive travel times based on what your network dataset supports.  You can always recompute the travel time to be based on expected slow down and re-build the network dataset with these values. Jay Sandhu ... View more

Jennifer, Can you describe your issue with some more details? What version of the software are you using? What network dataset? Any special settings for costs/restrictions/barriers/etc. How many orders/points are in the VRP layer? How many routes? If you monitor the system resources, are you running out of memory for that process? i.e., using up 2 GB of RAM. Thanks, Jay Sandhu ... View more

> We create the subroutes by running a vrp solution and then split in half the created route. Why not add more constraints on the VRP to create smaller routes that adhere to the work that needs to be accomplished rather than splitting in half? Jay Sandhu ... View more

Hopefully you can use Melinda's suggestion to using the GP tool.  But I want to clarify one thing. You say: " I tried to register the feature dataset as versioned to see if that would help things, but since SDE NDs don't allow for versioning of feature classes that already participate in NDs, I couldn't. I'm at a loss here." A feature dataset containing a network dataset CAN be versioned. And then the feature classes that are taking part in a network dataset can be edited. Jay Sandhu ... View more

If you have impedance attributes for both length and time added to your network dataset, then when you solve for one, you can accumulate the other and it will get reported as well. On the route analysis layer properties, click on the Accumulation tab and check on other attributes you want to report. Jay Sandhu ... View more

Take a look at the conflation toolset, especially the Transfer Attributes tool: Transfer Attributes—Help | ArcGIS for Desktop  Jay Sandhu ... View more

From your screen shots, it looks like you do not have a street network. You have polygon blocks that do not connect to another polygon block. As in your not working screenshot, there is no link between stop 3 to stop 4. The streets are missing. You will have to either convert these to centerlines and set up all the attributes like street names, travel costs and restrictions such as pedestrian crosswalks, etc., or get that street data from a vendor. It is not going to be easy to convert these polygons into streets.   Jay Sandhu ... View more

The route solver will solve a path through the stops in the order you give them in. So If you solve a path with the coordinates you provided, you get a path that is 83 KM. See the order in the screen shot below. ... View more

I think you should check your inputs.  You are sending in three points but the output response says four stops:    "Name": "Location 1 - Location 4",    "StopCount": 4, So there could be an extra "stop" being sent that is causing the path to be longer. Jay Sandhu ... View more

Mody, You are right in that Google will give you "different" paths. That is very useful when one wants to use an alternative highway. But usually you get only a couple of alternatives. It all depends on the context. K-shortest paths can be very similar. That is why I have had good results with the scaled line barrier approach in generating a number of different routes that can be evaluated for further use. Jay ... View more

You can create a model to do this and iterate over it.  Jay Sandhu ... View more

I have answered this type of k-shortest path many times before by using the line barrier concept. That is, solve the shortest path. Then load that shortest path as a line barrier with a scaled cost of say 10 percent. Solve again. Keep on repeating this process of adding in the next shortest path with 10 percent scaled cost and generate more paths. Jay Sandhu ... View more

The answer is Yes. The routing service computes a route between stops. You can pass in the coordinates of the path the truck took as stops but change their location type to "waypoints". That way, the route will solve a path through the points you pass in and return back one route from start stop to end stop. You can get more info on the routing service and way points here: ArcGIS REST API  Jay Sandhu ... View more

CF and OD return routes to locations within the specified distance cutoff or number specified. They do not honor "pairs". To find routes between pairs of locations, you can either solve each pair independently OR better way is to load them into a single route but set a common ID as the ROUTENAME property. That way you can load in 72 stops as 36 route pairs and solve in one route solver. More details here: Route analysis—Help | ArcGIS Desktop  Jay Sandhu ... View more

If your local network dataset has been built with support for live traffic and you are subscribing to a traffic feed then, Yes, you can use it to compute the OD based on a start time. But remember, that travel time (based on real-time traffic) is only valid for that start time. Jay Sandhu ... View more