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How do we Calculate Average and Maximum Queue Length?

For each leg of the intersection, this metric refers to the average or maximum length of the queue of vehicles (in meters) during the date, day and time range specified.

Average Queue Length

For each leg of the intersection, this metric refers to the average length of the queue of vehicles (in meters) during the date, day and time range specified.

Note: Length of queue refers to the number of vehicles in front of the last vehicle waiting to cross the intersection. A single value of Queue length is calculated per road i.e., a road might have vehicles that could turn left, right or go straight, but only a single value of queue length is calculated for the whole road. Compass calculates this by checking how far the last reported vehicle is from the intersection.

Maximum Queue Length

For each leg of the intersection, this metric refers to the maximum length of the queue of vehicles (in meters) during the date, day and time range specified. The same rules for queue length specified above apply here.