| http://www.w3.org/ns/prov#value | - FIG. 17 is a graph that schematically illustrates a route 1730 generated by routing engine 806, in accordance with an embodiment of the present invention. (This figure also shows aspects of a route corridor map for route 1730, as described below with reference to FIG. 18.) Route 1730 has the form of a polyline, comprising a sequence of route segments 1732, labeled RS1, RS2, . . . , RS6, which conn
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