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Traffic Data Definitions   Traffic Data Definitions



Average Speed
The average speed of all vehicles passing through the road segment during a five minute period.
Volume (5 min)
The total number of vehicles passing through the road segment during a five minute period. The indicated percentage reflects the current level of maximum capacity.
Maximum Volume (5 min)
The estimated maximum number of vehicles that the road segment can accommodate during a five minute period before delays occur.
Projected Volume (1 hr)
The projected number of vehicles to pass through the road segment hourly. A single lane can accommodate approximately 1800 to 2000 vehicles per hour.
Vehicles per Hour
The per-lane maximum volume of vehicles the road segment can accommodate before delay occurs.
Max Volume (1 hr)
The estimated maximum hourly volume the road segment can accommodate before delay occurs.
Occupancy (5 min)
The five minute average percentage of time the area of detection is occupied.
Occupied (5 min)
Total time in seconds during a five minute period the area of detection is occupied.
Volume + Occupancy
The sum of the five minute volume percentage and occupancy percentage. Used by DelDOT's computerized signal system to determine appropriate signal demands as related to traffic demand.


Traffic Data Definitions   Project Status Definitions



Active projects are funded in the six-year Capital Transportation Program (CTP).


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