The Evansville Local School District provides bus transportation for its elementary schoolchildren. One bus has been assigned to the neighborhood, as defined in Figure 7-22. Each year there is a new roster of children, and the location of the stops for them can be plotted on a map. Sequencing the stops determines the time and distance required to complete the bus tour. Using your best cognitive skills, design the shortest bus tour possible given the following conditions:
€¢ Only one bus is to be used.
€¢ The bus starts at the elementary school and returns to it.
€¢ Each stop is to be visited.
€¢ Children may be picked up or dropped off from either side of the street.
€¢ A pickup or dropoff at a corner may be made from either adjacent street.
€¢ No U-turns are permitted.
€¢ The bus has adequate capacity to transport all the children on the route.
Use a ruler or the linear grid to determine the total distance for the bus tour.

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0.5 1.0 1.5 2.0 0.5- 1.0 Scale: o Denotes pickup point Depot location 1/4 mi Figure 7-22 School Bus Routing Exercise