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An urban freeway is to be designed using the following information. AADT = 52,500 veh/day K (proportion of AADT occurring during the peak hour): D (proportion of peak hour traffic traveling in the peak direction): Trucks: PHF = 0.94 Lane width: Shoulder width: Total ramp density: Terrain: free flow speed Determine the number of lanes in the peak direction required to provide LOS C. (Assume commuter traffic and assume no RVs.) 3 ✔lanes Show all calculations required. (Calculate your answers for the peak direction only. Enter fy the peak hour volume in veh/h, the free flow speed in mi/h, the demand flow rate in pc/h/In, the mean speed in mi/h, and the density in pc/mi/In.) fHV 0.893 peak hour volume 6300 Your response differs from the correct answer by more than 10%. Double check your calculations. veh/h 1500 x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. mi/h 1900 x Your response differs from the correct answer by more than 10%. Double check your calculations. pc/h/In x mi/h X pc/mi/In demand flow rate mean speed density 0.12 0.65 8% of peak hour volume ✓ 12 ft 10 ft 0.5 interchange/mile; all interchanges are to be cloverleaf interchanges rolling

An urban freeway is to be designed using the following information. AADT = 52,500 veh/day K (proportion of AADT occurring during the peak hour): D (proportion of peak hour traffic traveling in the peak direction): Trucks: PHF = 0.94 Lane width: Shoulder width: Total ramp density: Terrain: free flow speed Determine the number of lanes in the peak direction required to provide LOS C. (Assume commuter traffic and assume no RVs.) 3 ✔lanes Show all calculations required. (Calculate your answers for the peak direction only. Enter fy the peak hour volume in veh/h, the free flow speed in mi/h, the demand flow rate in pc/h/In, the mean speed in mi/h, and the density in pc/mi/In.) fHV 0.893 peak hour volume 6300 Your response differs from the correct answer by more than 10%. Double check your calculations. veh/h 1500 x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. mi/h 1900 x Your response differs from the correct answer by more than 10%. Double check your calculations. pc/h/In x mi/h X pc/mi/In demand flow rate mean speed density 0.12 0.65 8% of peak hour volume ✓ 12 ft 10 ft 0.5 interchange/mile; all interchanges are to be cloverleaf interchanges rolling

Traffic and Highway Engineering
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter9: Capacity And Level Of Service For Highway Segments
Section: Chapter Questions
Problem 7P
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An urban freeway is to be designed using the following information. AADT = 52,500 veh/day K (proportion of AADT occurring during the peak hour): D (proportion of peak hour traffic traveling in the peak direction): Trucks: PHF = 0.94 Lane width: Shoulder width: Total ramp density: Terrain: 3 Determine the number of lanes in the peak direction required to provide LOS C. (Assume commuter traffic and assume no RVs.) lanes. 0.12 0.65 8% of peak hour volume demand flow rate 12 ft 10 ft 0.5 interchange/mile; all interchanges are to be cloverleaf interchanges rolling HV' Show all calculations required. (Calculate your answers for the peak direction only. Enter fy, the peak hour volume in veh/h, the free flow speed in mi/h, the demand flow rate in pc/h/In, the mean speed in mi/h, and the density in pc/mi/ln.) fHV peak hour volume 0.893 free flow speed mean speed density 6300 X Your response differs from the correct answer by more than 10%. Double check your calculations. veh/h 1500 X Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. mi/h 1900 X Your response differs from the correct answer by more than 10%. Double check your calculations. pc/h/In X mi/h X pc/mi/In
Transcribed Image Text:An urban freeway is to be designed using the following information. AADT = 52,500 veh/day K (proportion of AADT occurring during the peak hour): D (proportion of peak hour traffic traveling in the peak direction): Trucks: PHF = 0.94 Lane width: Shoulder width: Total ramp density: Terrain: 3 Determine the number of lanes in the peak direction required to provide LOS C. (Assume commuter traffic and assume no RVs.) lanes. 0.12 0.65 8% of peak hour volume demand flow rate 12 ft 10 ft 0.5 interchange/mile; all interchanges are to be cloverleaf interchanges rolling HV' Show all calculations required. (Calculate your answers for the peak direction only. Enter fy, the peak hour volume in veh/h, the free flow speed in mi/h, the demand flow rate in pc/h/In, the mean speed in mi/h, and the density in pc/mi/ln.) fHV peak hour volume 0.893 free flow speed mean speed density 6300 X Your response differs from the correct answer by more than 10%. Double check your calculations. veh/h 1500 X Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. mi/h 1900 X Your response differs from the correct answer by more than 10%. Double check your calculations. pc/h/In X mi/h X pc/mi/In
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