The shown intersection is located at urban area with population of 15000 and the speed on all approaches is 35 mph. Knowing that the north-south (major) road has three lanes in one direction and the east-west (minor) road is two lanes two-way highway and the peak hour volume is shown in the following table: Approach North East West Through Right Right Through Left Volume 75 (vph) % Trucks 5% Assume: ● ● Through Left 250 5% 200 5% 150 0% 100 0% Truck factor = 1.5 Left turn factor = 1.6 Driver perception reaction time=2.5 seconds Average time headway on all approaches = 2 seconds PHF = 0.9 180 0% Lane width= 12 ft Length of vehicle = 20 ft Use a= 0.27 g (gravitational acceleration 32.2 ft/sec²) There are overpasses for pedestrians on all approaches. 75 0% The peak hour volume is constant for at least 12 hours within an average day. 16) According to the eight-hours vehicular volume warrant, What are the volumes should be considered for major and minor roads respectively? A. (525, 255) B. (525,505) C. (525,180) D. None
The shown intersection is located at urban area with population of 15000 and the speed on all approaches is 35 mph. Knowing that the north-south (major) road has three lanes in one direction and the east-west (minor) road is two lanes two-way highway and the peak hour volume is shown in the following table: Approach North East West Through Right Right Through Left Volume 75 (vph) % Trucks 5% Assume: ● ● Through Left 250 5% 200 5% 150 0% 100 0% Truck factor = 1.5 Left turn factor = 1.6 Driver perception reaction time=2.5 seconds Average time headway on all approaches = 2 seconds PHF = 0.9 180 0% Lane width= 12 ft Length of vehicle = 20 ft Use a= 0.27 g (gravitational acceleration 32.2 ft/sec²) There are overpasses for pedestrians on all approaches. 75 0% The peak hour volume is constant for at least 12 hours within an average day. 16) According to the eight-hours vehicular volume warrant, What are the volumes should be considered for major and minor roads respectively? A. (525, 255) B. (525,505) C. (525,180) D. None
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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