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It is know that 4000 automobile trips are generated in a large residential area from noon to 1:00 P.M. on Saturdays fro shopping purposes. Four major shopping centers have the following characteristics:
Center Distance from residential (mi) Commercial floor space (1000 ft^2)
1 2.4 200
2 4.6 150
3 5.0 300
4 8.7 600
If a logit model is estimated with coefficients of -0.543 for distance and 0.0165 for commercial space (in 1000 of ft^2), how many shopping trips will be made to each of the four shopping centers?
a) shopping center 1
b) shopping center 2
c) shopping center 3
d) shopping center 4
A soil sample was taken from a proposed cut area in a highway construction project and sent to a soils laboratory for a compaction test, using the Standard Proctor compaction procedure. Results of the test are as follows:
A dam project specifies 97% compaction. Lab tests on the soil being used indicate that it has a maximum dry density of 1900 kg/m 3 at an optimum water content of 13.2%.
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Develop a simple urban constructed wetland design.
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