The result is illustrated in Figure 3. Wes tboro Station and Tunney s Pasture were omitted from the calculation so as generate a continuous network coverage to Lebreton. The polygon vector network appears as rings of concentric zones relative to the client s residence. Distance increases with darker polygons. The routes, in contrasted colour, also have the same effect due to the reclassification of the time intervals .
Distance increases with lighter coloured lines.
The pattern appears irregular due to the definition of the network criteria, so that roads that seem farther than others are included in the service area. The client appears able to cross the Queensway by proceeding around the highway. The network table suggests that the highway is assigned another street name, which she can walk on. The Spatial Analyst Find Distance function was used, again based on the client s residence, and reclassed into the same time intervals. The map calculator was then used to represent the time intervals as needed.