Description: The network feature class contains the route features for use in the ALRS. These routes have attributes, geometry that comes from the centerline feature class, and calibration that comes from the calibration point feature class. Combined these elements constitute a route with a LRM that can be used to locate events on that route. Each route should have a unique route identifier, called a routeID. This routeID can be a single field or a concatenation of multiple fields. If the network will use a concatenated routeID, all the fields that compose the routeID should be present in the network feature class, in addition to the routeID field.