Description: Routes represent a single linear feature, such as a city street or highway. Routes are linear features composed of one or more arcs or parts of an arc; for example, a highway may be composed of a number of connected arcs. A route, for linear referencing purposes, is simply a linear feature with measure values attached to it. Each route, at minimum, has an associated measurement system consisting of a route identifier, a measurement value along the route. The measures are used to locate data that describe parts of the route. Event data can represent point or range data. Point events are locations (an accident, a sign, or a culvert) somewhere along a route at a single measure (log mile, mile post). Linear or range events (functional classification, pavement condition, pavement type) extend along a route that starts at a measure and ends at another measure.
Description: Routes represent a single linear feature, such as a city street or highway. Routes are linear features composed of one or more arcs or parts of an arc; for example, a highway may be composed of a number of connected arcs. A route, for linear referencing purposes, is simply a linear feature with measure values attached to it. Each route, at minimum, has an associated measurement system consisting of a route identifier, a measurement value along the route. The measures are used to locate data that describe parts of the route. Event data can represent point or range data. Point events are locations (an accident, a sign, or a culvert) somewhere along a route at a single measure (log mile, mile post). Linear or range events (functional classification, pavement condition, pavement type) extend along a route that starts at a measure and ends at another measure.