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~map 1......",-.',...".".".,'." '" , .' , . . ...,..-............... ."" ~ For each route, the increasing milepost direction will be established. Route direction (increasing milepost direction) for all network routes will be determined in accordance with Federal Highway Administration Guidelines. ~ The common rule employed for milepost direction is the Federal Function Class (FFC). The FFC denotes milepost values increasing from the southwest to the northeast. Rule, specific assignment, or a combination of both will solve special circumstances. Specific examples of special circumstances are addressed in the following section. a Overlaps - In cases where a route jogs and then resumes at another location on the intersecting route, milepost values will not accrue through the overlap area. a Gaps - Milepost values will not accrue through a permanent physical discontinuity. The milepost value, at the start of a gap, will be the same value referenced when the route resumes. a Divided Routes - If divided routes are represented as two centerlines the mileposts will increase in the proper increasing milepost direction. If one centerline is represented then it will increase in the proper milepost direction and all assets will be attributed to the single line. a Inlets ("Eyebrows") and Turn Lanes - Centerlines not considered as a divided route, but existing to represent inlets to housing groups, entrances to building complexes, or turn lanes will not be used as part of the LRS. The main thoroughfare with which they share Route Name and / or Route ID will be the line segments used to assign milepost and offset values. Transmap will create a Linear Referencing System from the network route centerline basemap. The LRS is created by using the arc attributes' route number and surface length values. Arc segments are grouped into routes and surface length values are accumulated in the section table to give a total length to each route. The route system is then edited to define the travel direction of each route by identifying the beginning arc segment. All routes shall be defined as beginning at the western or southern most end segments and travel in easterly or northerly directions. Once the route system is complete, point and linear features can be associated to the route system by their route name and / or number. Milepost values and distance offsets from the centerline will be assigned to each subsequently captured asset feature. Deliverable A Geodatabase of the linear referencing system layer will be delivered. Asset Management Data Collection Point Asset Creation Point features within the City of Redwood City, California will be extracted from the imagery by Transmap. Information regarding point features is described below. ~ Point Assets Point features are measured as discrete features, identified by X, Y and Z coordinates. Attribute information will be tied to each applicable point Confidential Page 6 2/4/10 V3