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Batch Mileage Calculations for Caliper Maptitude®

Guided Tour of MPMileage: Location Options

MPMileage for Maptitude can work with locations specified with a data point layer, geographic (longitude, latitude) coordinates, or street addresses.

The input location type is set using the Locations drop down box in the Input Columns box of the Database Parameters dialog box. The Set Columns button is used to set the actual input column assignments in the database.

Using 'pushpin' input locations

This is the Input Locations dialog box set to work with named locations in point layers ('pushpins'). Each location only requires one text field that lists the pushpin. Hence, only two fields need to be set. The name of the layers name/identifier field also has to be specified in the Database Parameters dialog box.

Using street address locations

MPMileage can also use street addresses, "geocoding" (i.e. locating) them at run time. As can be seen from the image of the Input Locations dialog box (see right), this option has a lot more data fields that need to be set. These include street address, city, zipcode, region/State, and country. The country can be hard-coded for all locations, or set on a location-by-location basis for international route calculations.

This option is potentially very convenient because you do not have to locate your street addresses before calculating the route mileages. However, it is easy to introduce errors . MapPoint may not be able to locate all street addresses due to changing roads and typo/formatting errors. Therefore in order to use this option efficiently, you should only use it if you know your data is already "clean".

Using zipcode locations

Most of the street address fields are optional because you may not have all of the data present. For example, if you are in the US you do not need Other City, and zipcode will suffice instead of State. Also you may want to only map at an intermediate level such as City,State; or Zipcode.

Finding distances between zipcode centroids is a particularly common application, and the Input Locations dialog box image (right) shows MPMileage set for this situation. This can work with any country's postcode system, but be sure to set the country and be aware that Maptitude will use the postcode centroid locations for routing.

Using coordinate input locations

Finally, MPMileage can also work with geographic coordinates. The source and destination locations each require two floating point number fields - longitude and latitude. These follow Maptitude's standard formatting for coordinates: decimal degrees with positive values for the northern and eastern hemispheres.

Coordinates can be very fast and reliable, and do not require a data layer or unreliable addresses. However, you need to have the coordinates available. They could be recorded 'by hand' using a handheld GPS device, or they could be geocoded using Maptitude or an online geocoding service such as Bing Maps.

Next we look at the routing options.

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