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2 cards from this section. Quick, good the night before a test.
What is free flow speed?
Think about the speed limit on an uncongested highway.
Define jam density.
What happens when cars line up back to back?
What does free flow speed represent?
Think about what happens when traffic is uninterrupted.
True or False: Jam density can be defined as the density of vehicles at full congestion.
What happens when cars are bumper to bumper?
A traffic study collected the following speeds and densities: (10 km/h, 150 veh/km), (20 km/h, 200 veh/km), and (30 km/h, 100 veh/km). Use linear regression to find a and b coefficients.
Focus on organizing your data first before plugging into the formulas.
If your calibrated model predicts a free flow speed of 50 km/h and jam density of 250 veh/km, calculate the maximum flow rate.
Remember to apply the formula for max flow appropriately.
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