CONFIDENTIAL f serve. Table 3 shows the ratio of the numberof lanes leaving the target area to the population of the area. It can be seen that Washington and Dayton have twice the road capacity of Milwaukee and St. Louis andslightly more than twice that of Boston. : TABLE 3 , TraFric LANES SERVING POPULATIONS OF FrvE Urspan TARGETS | \ i : i | Target Boston Dayton enclosed, thous 60 22 2200 350 45 1400 Milwaukee 26 Washington 101 St. Louis Persons Lanes leaving target 800 1700 Ratio, lanes/thous of persons 0.025 . 0.06 0.03 0.03 0.06 The urban complex as a target seems to be. characterized by a single center that contains the best shelter, the best road network, and the most value to the economy. People ebb and fiow from this point by night and day but the location of the point does not shift. Thecities under consideration seem to differ most markedly in the extent of their road net- work and in their geographical locations, which affect the relative freedom of their populations to leave the target area. ORO-R-17 (App B) 17 CONEIDENTHAtT