Latest Contributions by JaySandhu

The no turn policy at a junction prevents u-turns on to the same edge. It is most likely that the castle downs road is a divided road and a turn is being made on to the other side. Directions puts in the word to indicate you are making a U turn there but it is not a u-turn on the same edge. If you want to prevent u-turns at divided roads then you will need to digitize turn restrictions in a turn feature class that participates in that network. Regards, Jay Sandhu ... View more

You could try Hierarchies, making the ped tracks a high number so it's less likely to use Hierarchy is not a way to restrict travel on some edges. The hierarchical algorithm may not favor the higher level hierarchy roads if the stops are close by. Correct way is to have a restriction on edges that can be turned on or off for a particular mode of travel. Please see the tutorial data for Paris that sets up different modes and travel costs and restrictions for pedestrians. http://resources.arcgis.com/en/help/main/10.1/#/Exercise_2_Creating_a_multimodal_network_dataset/00470000005v000000/ Jay Sandhu ... View more

Make sure the stops feature class in the Route analysis layer is turned on and has valid symbology. Also, in the NA window if you zoom to selected, you can also press the 1 (number one) key and it will flash the location where the stop is snapped to on an edge. If nothing has worked, create a new route layer and add the stops again (with geometry not locations) and are they visible? Jay Sandhu ... View more

You could have used the Feature Class To Feature Class tool to copy data around. http://resources.arcgis.com/en/help/main/10.1/#/Feature_Class_To_Feature_Class/001200000020000000/ As far as creating a network dataset in a File geodatabase, as I mentioned before, first create a Feature Dataset with the SAME spatial reference as the shape file. Then copy the shape file into that feature dataset. Then right-click on the Feature Dataset to create a new network dataset. In a geodatabase, networks can be made with more than one feature source. So Feature Datasets (think of it like another folder on your hard disk to organize your data) are used to ensemble all the network sources in one place with the same spatial reference so that network connectivity is easy to create. Note that, to create a feature dataset with the same spatial reference, use the Create Feature Dataset tool and then the third input will let you import the spatial reference from your shape file. http://resources.arcgis.com/en/help/main/10.1/index.html#//0017000000pv000000 Jay Sandhu ... View more

You can create shapefile based network datasets and use them with ArcGIS Network Analyst. The dissolve tool does not support them to create a new dissolved network directly. But it is easy to create a new file geodatabase, then a feature dataset using the spatial reference of the shape file, copying the shapefile into that feature dataset and then creating/building a network dataset. You can use the Dissolve Network tool to "merge" connected edges with the same number of lanes IF when your create the network dataset, you add a Descriptor attribute called Lanes and set it's evaluators to the lane field. This way, when the dissolve network tool is running, it will merge the two adjacent edges with same number of lanes if their descriptor attributes match (it will replace them by one edge). Note that the tool adds up the cost attributes, but replicates the descriptors values. Jay Sandhu ... View more

In the NA Window, right-click on one of the Stops and choose Zoom to Selected Features. Does the map zoom to somewhere else and show you the stops? If yes, then most likley the locations on them are "stale" from when the Calculate Locations was run and when they were used. You could right-click on the Stops and choose to "Recalculate Location Fields" and then All to re-do the locations. Jay Sandhu ... View more

"ERROR 030070 Invalid network dataset type." Shape file based networks are not supported.  From the help: http://resources.arcgis.com/en/help/main/10.1/#/Dissolve_Network/00480000000w000000/ The input network dataset must be a file or personal geodatabase network dataset with exactly one edge source. Any number of junction sources and turn sources is allowed. The edge source must have: End point connectivity policy An elevation policy of either None or Elevation Fields So change the input to be file bases network dataset and try again. Regards, Jay Sandhu ... View more

Kate, The basic algorithm is documented online, see the service area section here: http://resources.arcgis.com/en/help/main/10.1/#/Algorithms_used_by_the_ArcGIS_Network_Analyst_extension/004700000053000000/ Jay Sandhu ... View more

Not sure why ArcCatalog did not let you move the files. The streets.rs and street4.rs expose hierarchy into two different ways for the hierarchy On option in the route and other solvers. The streets.rs has fewer roads on the top level hierarchy and will give you fast performance. But in some cases it can give you longer paths in areas of the country that has a very sparse highway network. So if you start to see "longer" paths then use the streets4.rs Again, this is an issue with the free Streetmap data as it not the most up to date premium content. The Streetmap premium has lot more details and better defined hierarchy and only has one .rs file. Jay Sandhu ... View more

What network dataset are you using? It could be that some facilities are not reachable due to restrictions and with hierarchy off it could be taking a long time. So if you have hierarchy off, then try by turning that off. How many closest facilities are you solving for? If it is only a few then can you add a cutoff on distance, say 30 miles or minutes and see if you get results? Jay Sandhu ... View more

the file structure does not seem to be right. Normally all the data resides in the streetmap_na\data folder. In your first screen shot, you have the streets.sdc and the streets.rs files sitting at the same level as the streetmap_na and then in the second screen shot the streets.rsx is in the streetmap_na\data folder. Move the streets.sdc and .rs files into the streetmap\data folder. Jay Sandhu ... View more

There can be an infinite number of paths between two locations on any reasonable size of network data. So you have to define what you really mean my ALL possible routes. One way to generate different paths is to use the scaled line barrier concept. So you solve the route once to get the shortest path. Then use load locations to load the resulting route as a Line Barrier and set it as scaled cost with a scale of 1.1 (ten percent more) and re-solve. This will most likley give you a second path. You can repeate this process by changing the scaled cost to 1.2, then 1.3, etc. Once you are done with this, you can add on the second best path as an additional scaled cost and iterate over that. It can all be done in a model builder. Jay Sandhu ... View more

I am assuming that you want to list the X,Y,Z coordinates of every line in your feature class. Use the following VBA as a starting points and customize for your needs: Jay Sandhu Public Sub ListLineCoordinates()   Dim pMxDoc As IMxDocument   Set pMxDoc = ThisDocument     Dim pFLayer As IFeatureLayer   Set pFLayer = pMxDoc.SelectedLayer     Dim pFeatureClass As IFeatureClass   Set pFeatureClass = pFLayer.FeatureClass     Dim pFeature As IFeature   Dim pPoint As IPoint   Dim pPCol As IPointCollection   Dim numLines As Long, pointCount As Long, i As Long, j As Long   Dim X As Double, Y As Double, Z As Double     Dim pQ As IQueryFilter   Set pQ = New QueryFilter   pQ.WhereClause = ""   numLines = pFeatureClass.FeatureCount(pQ)     For i = 1 To numLines       Set pFeature = pFeatureClass.GetFeature(i)           Set pPCol = pFeature.ShapeCopy       pointCount = pPCol.pointCount       For j = 0 To pointCount - 1         Set pPoint = pPCol.Point(i)         X = pPoint.X         Y = pPoint.Y         Z = pPoint.Z         Debug.Print i, j, X, Y, Z       Next j   Next i End Sub ... View more

300 meter is not too large and you should be able to generate the 2800 bus stops relatively quickly. Perhaps there is something else going on with the data. Have you tried running the service areas, 100 bus stops at a time? Maybe that will narrow it down to which set of stops or where in the network data the service area is taking longer to solve? Also, are you using the generalized or detailed methods and what is your trim distance? What is the data source? That is, streetmap or your data? Jay Sandhu ... View more