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2 cards from this section. Quick, good the night before a test.
What is speed in a traffic flow context?
Think about how speed is defined mathematically.
Define spot speed.
Recall the meaning of 'instantaneous' in relation to speed.
What is the formula for calculating speed?
Recall the basic definition of speed.
True or False: Journey speed is the speed of a vehicle without considering stoppages.
Think about whether stops are factored into journey calculations.
A car travels 300 km in 4 hours. Calculate the running speed. Then, if it makes two 15-minute stops, what is the journey speed?
Break down the total time for the journey considering stops.
Using traffic data, you know that 150 vehicles passed a point in 30 minutes. Calculate the time mean speed, then interpret how this affects traffic flow.
Remember, this means how well vehicles are handling traffic conditions during that period.
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