Which of the following indicates correct Speed and Volume/Capacity Ratio respectively, for a road with Level of Service A?
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To easily remember Level of Service (LOS):
- LOS A = Free Flow. The road is mostly empty, so the $V/C$ ratio is low ($\leq 0.6$) and drivers can travel at maximum safe speeds.
- LOS F = Gridlock. The road is oversaturated, the $V/C$ ratio matches or exceeds 1.0, and speed drops toward zero.