Latest Contributions by JaySandhu

Slow loading usually means that there is a missing spatial index or the existing index is bad. You can try to use the normal identify of a feature on your network and see how fast that is. If that is also slow then it also points to a bad index. You will need to re-index or create an index on your street features. Jay Sandhu ... View more

I do not have a paper but a power point. Send me an email jsandhu at esri Jay Sandhu ... View more

Glad to know you found a tool! And thanks for reporting it here as others will be able to find the same solution that you did. Jay Sandhu ... View more

Let me ask again: what version of the free streetmap data are you using? Make sure you are using the version that came with ArcGIS 10. these files should be dated from 2010. You should not see this kinds of route with it. The older versions may not have good hierarchy information and you may sometimes get odd results. You can always compare routes with "better" data. For example, in ArcMap, on the standard toolbar with the zoom in/out icons, there is a Find Route tool. You can use this tool to solve routes using data/service hosted on ArcGIS online using better street data. Help on this tool is here: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//007z00000002000000.htm Jay Sandhu ... View more

As you can see, there is no column which gives the length of the route. Is this how it is supposed to be?  Yes! Feature classes do not automatically have length or other attributes added on to them. If you want to see the acutal geometry length of a line, then you can add a field and use the field calculator to display this value. Help here: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//005s00000025000000 However this is the geometry length, not the calibrated measure length of the route which can be different. Jay Sandhu ... View more

Instead of creating the event layer isn't there any other way to get the intermediate points along a route? For example, are there any polyline to point conversion or split polyline tools that can be used to solve this issue. You could post on the geometry/genaral type forums for other solutions. As far as I am aware, the tool Split line at Vertices could be used, but how will you gurantee that their are vertices every 50 feet? You could first use the Densify tool but again there is no gurantee that the vertices are every 50 feet as the existing vertices can be anywhere before you start to densify. Jay Sandhu ... View more

The output of that Create Routes tool should have measures unless the length field does not have any informaiton. Open the attribute table of the newly create feature. It should list "Polyline M" in the Shape column. If it only says "Polyline" then the tool was not executed properly. Jay Sandhu ... View more

The route layer create by solving on a time attribute will have the M measure values in terms of the time attribute. You will need to re-create that route based on length before you can use the linear referencing approach. You can do this by using the Create Route gp tool. The input will be the route shape file you have written out. See more about it here: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//003m00000005000000.htm Jay Sandhu ... View more

Using a network dataset and a Route analysis layer, you can load in multiple points and on solve, the stops attribute table contains a new column with a name that starts with "Cumul_". For example, if you solved on an impedance attribute called Meters, this column will be named Cumul_Meters. It contains the cumulative meters from the start to reach the individual points. The difference between any two will be the difference between them. So you could select only those points with the same attribute, load them into Stops of a route layer, solve and use the Stops attribute table as needed. Jay Sandhu ... View more

For line barriers to work, the line geometry has to match exactly. If they do not match, do you have a common attribute/id to help you match the lines from the two sources? If not, then the overall problem of moving attributes from one geometry to another is called "conflation". You will have to search for arcgis based conflation tools on the net to help you do this. The following help on rubber sheeting may be of help as well: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/About_spatial_adjustment_rubbersheeting/001t000000v3000000/ Jay Sandhu ... View more

When you solve in Network Analyst using streetmap data, the default is to minimize travel time. Bring up the properties of the route layer and on the analysis tab, change the impedance attribute from Time to Length and then solve again. You should get a smaller "length" route. Jay Sandhu ... View more

The differences can be due to the data being used. What version of ArcGIS are you using and what version of the streetmap are you using? Jay Sandhu ... View more

There should be a file called "streets.rs" that will show up in catalog as a network dataset. The actual network files that it points to are in a folder called streets.rsx Jay Sandhu ... View more

Are you looking at counting turns that may be part of a turn feature class? In that case if their are turn restrictions they will be avoided. Only turns that have delays assoicated with them may be traversed. In that case use the traversal addin to generate the feature classes, including turns, after your paths are solved. http://resources.arcgis.com/gallery/file/ArcObjects-.NET-API-Code-Gallery/details?entryID=C8A2186E-1422-2418-3494-48812C8DB8DE But if you are looking at simply "bends" along your paths, then you have to look at the geometry at each intersection to see if a "turn" is being made. One simple way to get this information reported is to get the directions of a route. It will report left and right turns. You can save the directions as text or XML. With XML you may be able to parse out what you need, but this may not be in the best way to summerize. Can the network dataset you are using to solve editable to add more attributes for later use? That may give more options on reporting turn information. Jay Sandhu ... View more