Latest Contributions by MelindaMorang

‎11-09-2020

Thank you! I have downloaded the data, so you can delete the share now. I will play around with it and see if I can figure out why it is producing strange errors.

‎11-09-2020

That's very weird that any stops ended up without geometry, but I'm glad you're back up and running. Are you able to share your GTFS dataset with me? I'd like to run some tests on it to see if I can figure out how it got messed up in the first place.

‎11-09-2020

Hi Tim. I'm sorry you've had so much trouble with this entire workflow. That's a pretty weird error. In the line that failed, the tool's code is trying to retrieve the geometry of one of the stops, and for some reason the geometry is null. Theoretically this should never happen, but somehow it has happened anyway. This tells me that something is wrong with the Bamberg\Stops feature class. At least one of the points is somehow missing geometry. Did you make any edits to the Stops feature class after you ran the GTFS To Network Dataset Transit Sources tool? Theoretically it should be impossible for that tool to output invalid stop geometries. Or does your feature dataset have an unknown coordinate system? If you run Repair Geometry on the Stops feature class, does it fix anything?

‎11-03-2020

This is not precisely what you asked for and is several years after you asked, but in the last few releases of ArcGIS Pro, we have been building out a toolbox for working with GTFS data: An overview of the Transit Feed (GTFS) toolset—ArcGIS Pro | Documentation

‎10-30-2020

Yay!!!! That is wonderful. Definitely let me know if you encounter any problems or if you have any suggestions for how we can improve the ArcGIS Pro solution.

‎10-27-2020

Wow, that looks...incredibly complicated. That is probably too much for me to debug (tech support is not my primary job). You may need to reach out to the actual Support people at Esri Support | ArcGIS Technical Support or at the distributor for your country if you're not in the US. Is the problem reproducible if you run the tool from the geoprocessing pane? Sometimes models behave strangely when run from the ribbon button with the model open because it sometimes preserves a state from some previous run when you're not expecting it.

‎10-27-2020

Hmm, that's interesting. Several things come to mind, but without seeing your model or knowing how you're running it, it's hard to say which might be the problem. How are you running the model? Running it using the Run button on the Model Builder ribbon while the model is open Running it like a tool from the Geoprocessing pane Calling the model tool from a python script Can you share your model? I could take a look.

‎10-26-2020

The transit schedules are stored in a sqlite database, and that's what's being cached. Clipping the transit lines will have no effect. You should really use ArcGIS Pro. My team put in a great deal of time and effort making that solution work better, faster, and more reliably than the old Add GTFS To A Network Dataset toolbox. You should use it in order to get the latest and best functionality with less likelihood of strange errors. Plus, I will be able to actually help you with your problems.

‎10-26-2020

As explained in my reply to your previous post, this tool is deprecated and no longer supported, so I cannot provide extensive assistance. The caching error in your screenshot above shows "OutOfMemoryException", which to me indicates that your computer is out of memory. There really isn't anything I can do to help you with that. It seems like your transit network is simply too large for ArcMap's memory resources to handle. ArcMap is a 32-bit application that cannot make use of your computer's full memory resources (so getting a better computer will not help). You could install ArcGIS Server and register the transit evaluator with Server, and that might fix it. It would probably be easier at this point to just install ArcGIS Pro and use the newer, better functionality included out of the box there. This tutorial shows you exactly how to create a transit-enabled network in Pro: Create and use a network dataset with public transit data—ArcGIS Pro | Documentation

‎10-26-2020

This behavior is as designed. The feature datasets and feature classes for network analysis layers use automatically-generated unique names. In previous releases, this was done using a numbering scheme, but this was changed later on to a string of alphanumeric characters. When writing scripts or automating workflows in a different way, you should not try to access the network analysis layer’s sublayers directly by their data paths, as this is not a supported workflow and the naming convention is not static or guaranteed. For ModelBuilder, if you need to access a sublayer of a network analysis layer, you can use the Select Data utility. If you need to access the network analysis layer later, after the model has finished, you should use the Save To Layer File tool to save the layer itself to disk as a .lyrx file.

‎10-22-2020

The answer is maybe. The error message you posted earlier showed that it failed when running the Integrate tool. The purpose of that tool is to create a vertex in your streets at the location where each Stops_Snapped2Streets point intersects the street. Without these vertices, the network dataset will not actually be connected at those locations, so a traveler would not be able to get on or off the transit line at that location. It could be that just one or two locations caused a problem and the rest worked correctly, in which case the overall errors in your network would be small. On the other hand, possibly the Integrate tool did not add any vertices, in which case your transit lines will be completely disconnected from your streets.

‎10-22-2020

It is not possible to edit network dataset properties in python, and that capability is not planned, either. However, since this was originally posted, it is possible to create a network dataset in python with a pre-defined schema using the Create Network Dataset From Template tool. If you can configure your network dataset manually once so it has the desired properties, you can create a template from it, and then you can automatically re-create this same network with the same properties with different input data (as long as it has the same schema).

‎10-21-2020

Hi Tim. I cannot provide extensive support for this tool because it is now deprecated. The functionality is available out-of-the-box in ArcGIS Pro, so if at all possible, I encourage you to use that instead. It may make your problem simply go away. With that said: The error message appears to be related to some problem with the geometry of your street features. I suggest you run the Check Geometry and Repair Geometry tools on your streets and then try running Step 2 again.

‎10-16-2020

Your service area layer is using the travel mode "Driving Time". This travel mode uses a cost attribute called "TravelTime" to calculate the travel time through the network. That cost attribute is configured with some sort of evaluators that determine what calculation it does to figure out the travel time. To understand that, you would have to examine your network dataset in detail. To determine the "distance in that time frame", the travel mode also has an associated Distance Cost, and that's using a cost attribute called "Kilometers". Just like the "TravelTime" cost attribute, "Kilometers" is also configured using evaluators to perform some sort of calculation that determines the length of each road. Typically distance-based cost attributes either use the actual shape of the roads or else use a pre-calculated distance in a field in the data, but you would have to examine your network dataset to know for certain.

‎10-15-2020

TravelTime is a cost attribute, which means the network has some sort of configuration to calculate travel time. This is set up using evaluators. Read more about what an evaluator is and how it work: Types of evaluators used by a network—ArcGIS Pro | Documentation That cost attribute has some parameter with a value of Null. In order for you to answer that question, you need to figure out what the parameter on the TravelTime attribute is for. You may need to open your network dataset's properties and examine the TravelTime cost attribute. You may need to examine the evaluators table to see how the parameter is being used in the cost calculation.

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My Ideas

Latest Contributions by MelindaMorang

Re: Error when caching transit schedules

Re: Error when caching transit schedules

Re: Error when caching transit schedules

Re: Add Bus/Transit routes, stops and timetable to LGIM

Re: Error when caching transit schedules

Re: Naming ServiceArea in .gdb and Model Builder

Re: Naming ServiceArea in .gdb and Model Builder

Re: Error when caching transit schedules

Re: Error when caching transit schedules

Re: Naming ServiceArea in .gdb and Model Builder

Re: Add GTFS to Network Dataset keeps producing Error 999999 Topo-Engine

Re: Network analysis in Python

Re: Add GTFS to Network Dataset keeps producing Error 999999 Topo-Engine

Re: Travel time default for Service Area tool?

Re: Travel time default for Service Area tool?

Re: TransitNetwork for multimodal analysis?

Re: Network analyst public transit tool Prepare ti...

Re: Network analyst public transit tool Prepare ti...

Re: How do I fill in the blank areas where streets...

Re: Route Solver - Add Locations - Convert Model B...