If the speed limit were 45 mi/hr on the major road, and 25 mi/hr on the minor road in Problem 7-18, determine the minimum distance that the building can be located from the centerline of the outside lane of the major street.

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Given:

b = 40 ft

In Table 7.9 and Table 7.10, the suggested length of leg on the minor road

is db = 130 ft, and that on the major road is da = 430 ft, when the speed limits are

45 mph on the major and 25 mph on the minor.

The minimum distance of the building from the centerline of the outside

lane of the major street along the major road can be computed using Eq. 7.4 :



The distance from the building to the major road should be at least 118 ft.

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