Greenshields model

The free flow speed of a highway is 100 km/h and its capacity is 4000 vehicle/h. Assume speed density relation is linear. For a traffic volume of 2000 vehicle/h, choose all the pos...

The free mean speed is 60 km/hr on a given road. The average space headway at jam density on this road is 8 m. For a linear speed-density relationship, the maximum flow (in veh/hr/...

Consider the four points P, Q, R, and S shown in the Greenshields fundamental speed-flow diagram. Denote their corresponding traffic densities by $k_P$, $k_Q$, $k_R$, and $k_S$, re...

Assuming that traffic on a highway obeys the Greenshields model, the speed of a shockwave between two traffic streams (P) and (Q) as shown in the schematic is _________ kmph. (in i...

For a traffic stream, V is the space mean speed, k is the density, q is the flow. V f is the free flow speed, and k f is the jam density. Assume that the speed decreases linearly w...