Map Data Configuration - General Information
ESRI map data based on shapefiles OR a geodatabase can be used with ITI's Dispatch or Workstation / Mobile Map.
The following make up a basic map configuration:
RoadSegments (required) - This is the road centerline data from the map.
Wellknown Data Fields
AddressPositions (optional) - This is the address points layer.
Wellknown Data Fields
PostalZones (optional) - This is the Zipcode (or Municipality) layer.
Wellknown Data Fields
- PostalCode (optional)
In order for a locator to be utilized by the map, it must be saved to the same directory as the MXD file with the same name as the MXD file. For example….MXD=C:\Data\map.mxd. Locator=C:\Data\map.loc
Locators are used in addition to the AddressPosition layer (if configured) to find address matches. If a locator is not setup as outlined above, it will not be used by the map.
In order for routes (directions) to be calculated, the map must contain a “Closest Facility Network Analysis Layer”. This type of layer is based on a network dataset. Below are the steps that can be used to create a network dataset and a Closest Facility Network Analysis Layer. Included are some ESRI links that might help in the creation of the necessary data:
Creating a Network Dataset
1. In ArcMap, open the Catalog Window. Under Folder Connections, browse to the shapefile that the network dataset will be based on (i.e. RoadCenterline.shp). If you do not have a folder connection that allows you to browse to the shapefile, you will need to add a folder connection first.
2. Right-click on the shapefile and select “New Network Dataset”.
3. Enter a name for the network dataset or just take the default and choose “Next”.
4. When prompted with “Do you want to model turns in this network” take the default of “Yes”. Under “Turn Sources” you might see a checkbox for “<Global Turns>” that is checked and disabled. That is OK. Choose “Next”. Alternatively you can setup your own turn modeling.
5. The next form will have some text describing the default connectivity settings and provide a button labeled “Connectivity”. In most cases no changes to this are needed. Select “Next”.
6. The next form will ask about modeling elevation. If the layer your dataset is based on has elevation fields, you can select the “Using Elevation Fields” radio button and setup the elevation fields. Otherwise, just leave the “None” radio button selected and choose “Next”.
7. The next form allows you to enter the attributes from the underlying shapefile data that will be used by the Network Dataset. This is where you will add attributes like “Direction” for the field that stores the street direction, Length for the field that stores a road segment length and Cost for a field that stores the road segment cost (in minutes or miles). Some data may not have all attributes. See the example in the 2nd link above for more sample attribute settings.
8. The next form asks about establishing driving directions settings for this dataset. Typically you will just leave “No” selected to use the default direction settings. Select “Next”.
9. A summary of your selections will be shown. Select “Finish” to create the network dataset.
10. Once the network dataset is created it will prompt you to build it, select “Yes”.
11. Once it is built, it will ask you whether or not you want to add all feature classes that participate in the network dataset to the map, select “No” unless you have a reason you want these added to the map. This should still add the network dataset to the map.
12. This will create the network dataset in the same directory as the shapefile. It will have a “.ND” file extension.
Creating a Closest Facility Network Analyst Layer
From either System Toolboxes > Network Analyst Tools > Analysis OR from the Network Analyst toolbar, select the option to create a “Closest Facility Layer”. It is easiest to do this from the Network Analyst toolbar. In order for the “New Closest Facility” option to be enabled from this toolbar, you have to select have the Network Dataset loaded in the Table of Contents under “Layers”. If you use the Network Analyst Tools method you will need to browse to and select the Network Dataset the Closest Facility layer should be based on. Take all the other defaults. This will create a Closest Facility Network Analysis layer. The presence of this layer will enable the “Directions” feature in the Workstation/Mobile Map.