Unformatted text preview: Note: In this phase, plot possible routes on the photographic base maps. Phase III – Preliminary location Survey • Set the positions of the feasible routes and determine preliminary vertical and horizontal alignments • Evaluate the alternative routes (plans) in terms of their benefit/cost ratios • Provide environmental impact statements for each of the proposed routes • Set public hearings • Select the best alternative (proposed location of the route and its vertical and horizontal alignments) Phase IV – Final location Survey • Prepare the detailed layout of the selected route including horizontal and vertical alignments, positions of structures (bridges), and drainage channels Note: In this phase, final plans including design specifications of vertical and horizontal alignments, and the amount of cuts or fills are determined. The plans and specifications are the instructions under which the highway is constructed....
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- Spring '11
- Aerial photography, Freeway, Environmental impact statement, Motorway, Highway Location Phase, horizontal alignments