Overnight Demand — Modified CTDOT Methodology*

Parking demand for long haul trips requiring overnight rest time. Overnight demand is forecasted using the total truck volume on a corridor, multiplied by the number of truck-driving hours, multiplied by the percent of off-duty time within a work week, multiplied by a peak hour factor

Daily LH Driving Hours

Driving Hours = AADT * % Trucks * % LH Trips on Corridor

Overnight LH Parking Hours

Total Overnight Demand = LH Hours * % Of Off-Duty time in Week (0.635)

Peak Overnight Demand

Peak Overnight Demand = Total Overnight Demand * Peak Hour Factor (0.09)