Jan
Geofence Tracking

What is a Geofence?

A Geofence is a pre-defined area made up of a list of latitude/longitude points on a map. The simplest form of geofence is circular and made up of a single latitude/longitude point along with a radius distance. A circular geofence is useful if you want to do notifications when someone has entered or exited a general area.  For our purposes, circular geofences are too simple for what we’re trying to accomplish so we’ve implemented polygon-based geofences.

Why did you add Geofences instead of feature X?

Geofences have been our most-requested feature by users. For trucking and bus companies, the FMCSA (Federal Motor Carrier Safety Admin) requires all 10,000 lb. + trucks and buses moving goods or services over state lines to keep a logbook. With geofences, they can define a geofence for each state they service. Some home healthcare companies are required to track how much mileage is driven in individual counties.

How do Geofences work?

Geofences must first be added to your settings page before you can track mileage driven inside them. You can create a geofence just for yourself, or you can select the cascade option so that any of your Managed Users can have mileage tracked inside the Geofence you’ve created. Managed users are able to view (but not edit) geofences created by their managers. One way you can create a Geofence is by right-clicking on the map, or dragging the transparent points to create a new point. Click the image below to see an animation of creating a geofence manually.
geofence1
Another way to create a geofence is to copy/paste a list of points from Google FusionTables for existing areas like counties or states.

FusionTables – United States Counties
FusionTables – US States
FusionTables – US Congressional Districts

Click the images below for an example of creating a geofence using FusionTables KML data.
geofence2
geofence3

Who can use Geofences?

Anyone who has a MileTrack account can play around with creating Geofences using the dashboard. Because calculating mileage inside a geofence produces a computationally-intensive load on our servers, we’re currently restricting the calculation of mileage to just those who use our tracking device. This may change in the future, but for now, Geofences can be considered a “premium” feature.