5
votes
1answer
798 views

How to automatically create all possible polyline routes connecting many point locations around a polygon obstruction?

Lets say I have 30 ports on the west of an island, and 30 on the east, and need to calculate all possible shipping distances between each and every port, with the routes having to steer around the ...
5
votes
4answers
897 views

How to find dead-ends in a road network

I'm trying to remove all the dead-end roads in a road dataset (lines) that are less than 100m long. How do I identify roads that are dead-ends (no exit)? The 100m part is easy. I know how to use Arc ...
3
votes
2answers
198 views

Get the junction id for the roads in a network dataset

I have a network dataset with roads and junctions. I am wondering what class I can use in arcpy to extract FromJunctionId and the ToJunctionId for each road segment in the network dataset. Thanks.
3
votes
1answer
150 views

How to create a multimodal network?

How to add waterways and railroads without turn restrictions into the previously created street network dataset with turn restrictions, in order to create a multimodal network? For a university ...
4
votes
2answers
576 views

How to find the watershed for each outlet point and sum values within it?

I have the following files to work with: Stream network of a basin; Outlet points for each segment* of the network and Points which represent water withdrawals along of the stream, which are not ...
15
votes
1answer
244 views

Are there any standards or common practices for performing a network analysis for emergency response?

I am working on a project using Network Analyst to determine official emergency response zones for fire departments. The shape of each zone will be determined by the network (at least 1 department ...
2
votes
1answer
450 views

How to integrate every single street into a network analysis?

This is my first question, but I solved problems before thanks to this great community! It is also my first time working with a network analysis (ArcMap 10) and there are some problems which haven't ...
6
votes
2answers
2k views

Segment road network line shapefile into new equal length segments line shapefile

I would like to subdivide a road network for an entire state into segments of equal length. So, Highway X would be divided into 0.5 mile segments, with a record for each segment, and Highway Y would ...
2
votes
1answer
286 views

Need to programmatically create Barriers in my Network Dataset

I have the following C# code to create a Network Dataset layer that I can bring into ArcMap. However, even though I am able to create a Route from the ND, I am not able to create Barriers of any kind ...
6
votes
2answers
661 views

How do I select only those features, that are connected?

I have a polygon layer of water reservoirs and a polyline layer of canals. In my data, some canals are originating from reservoirs, and leading to other canals. On the other hand there are some ...
4
votes
1answer
677 views

Stream Gradient - Assigning points to their respective Reaches

This is a continuation of the question I initially posed here. Also, I've attached a shapefile on my db account here. I'm trying to break a stream network up into 100m reaches, assigning elevation ...
9
votes
1answer
1k views

Difference between network dataset and geometric network

In ArcGIS, what is the difference between a "network dataset" and a "geometric network"? Are there differences with what can be done with each?
3
votes
0answers
403 views

IDatasetContainer2 CreateDataset method fails after upgrading to ArcObjects 10 [closed]

I have a Network Analyst routine that worked for 9.3 and does not work with 10. I was closely following the example at: ...
12
votes
6answers
1k views

What's an efficient way of detecting road junctions on a map?

I may receive maps from any source for my project, and for the C++ algorithm I'm making, it's imperative for the algorithm to know where road junctions (nodes where more than two road segments meet) ...
5
votes
2answers
431 views

How to sum an attribute of a feature in a network along a route? (ArcGIS Network Analyst)

In the walking network that a friend and I are creating, we want to calculate an overall safety rating for each route. Each segment of our walking network has a certain safety value. We have ...
3
votes
1answer
597 views

Network Analyst hierarchy routing issues. (ArcMap)

My friend and I have created a walking network. We created a network without a hierarchy evaluation and the routing worked fine, but when we added a hierarchy to the equation many routes won't solve. ...
4
votes
2answers
531 views

How to include polygons as part of a network for Network Analyst (ArcMap)?

I am creating a pedestrian walking network of a downtown area. I am digitizing line segments for paths and sidewalks, but I need to incorporate parking lots into my analysis. So far, I have been ...
3
votes
2answers
239 views

Can ArcHydro Tools be used on a network in an SDE enterprise geodatabase?

Most of the documentation for ArcHydro Tools discusses their use on data in ESRI's personal and file geodatabases. Is it possible to use ArcHydro Tools to set network flow direction on a networked ...