Which metric quantifies the fraction of time a fixed point on a roadway is occupied by vehicles?

Which metric quantifies the fraction of time a fixed point on a roadway is occupied by vehicles?

• A. Occupancy
• B. Demand
• C. Phase
• D. Weaving Sections

Answer: (A)

Occupancy is the fraction of time a fixed point on the roadway is occupied by vehicles. In practice, a sensor at that point is considered "occupied" whenever a vehicle passes over or covers the detector. So occupancy equals the total time the point is blocked by vehicles divided by the total observation time, often expressed as a percentage. This measure rises when traffic flows are heavier, vehicles are longer, or speeds are slower, since each vehicle blocks the point for a longer portion of time. It’s a time-based indicator of how congested a location is, distinct from demand (how many vehicles want to use the road), phase (signal timing for intersections), or weaving sections (where lanes merge or cross).

Occupancy is the fraction of time a fixed point on the roadway is occupied by vehicles. In practice, a sensor at that point is considered "occupied" whenever a vehicle passes over or covers the detector. So occupancy equals the total time the point is blocked by vehicles divided by the total observation time, often expressed as a percentage. This measure rises when traffic flows are heavier, vehicles are longer, or speeds are slower, since each vehicle blocks the point for a longer portion of time. It’s a time-based indicator of how congested a location is, distinct from demand (how many vehicles want to use the road), phase (signal timing for intersections), or weaving sections (where lanes merge or cross).