Linear events are features such as speed, surface type, and graveling that have a start and end point and are represented by lines on the map. Users can edit these events. For example, a user could track the graveling program for 2008. The user could track which roads have been graveled and the start and end point of the gravelling. If a new road or section of road was graveled, or if a previously gravel road was paved, the user could edit those details.