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(Solved): Assume that the speed-density function of a section of highway follows Greenshield's Model. The fr ...



Assume that the speed-density function of a section of highway follows Greenshields Model. The free-flow speed is \( 75 \mat

Assume that the speed-density function of a section of highway follows Greenshield's Model. The free-flow speed is \( 75 \mathrm{mph} \) and the jam density is \( 176 \frac{\mathrm{veh}}{\frac{\mathrm{ml}}{\mathrm{lane}}} \). a. Derive \( V \) as a function of \( S \). b. In 15 minutes, you have counted that \( V=150 \frac{\text { veh }}{\frac{15 \text { minute }}{\text { lane }}} \). Estimate the two possible speeds \( S \) (in \( m p h \) ) during this 15 minute period.


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