10-23. Determine the Lio noise level for the following highway traffic situation:Autos = 1,500 per hourSpeed = 60 km/hSpeed= 60 km/hMedium trucks = 150 per hourHeavy trucks =0Observer-roadway distance = 40.0 mLine-of-sight distance = 40.0 mBarrier position = 3.0 mBreak in line-of-sight distance = 6.0 mAngle subtended = 170°Answer: L10 = 51 dBA

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10-23. Determine the L₁0 noise level for the following highway traffic situation: Autos = 1,500 per hour Speed = 60 km/h Medium trucks = 150 per hour Speed = 60 km/h Heavy trucks = 0 Observer-roadway distance = 40.0 m Line-of-sight distance = 40.0 m Barrier position = 3.0 m = 6.0 m Break in line-of-sight distance Angle subtended = 170° Answer: L10 = 51 dBA

10-23. Determine the L₁0 noise level for the following highway traffic situation: Autos = 1,500 per hour Speed = 60 km/h Medium trucks = 150 per hour Speed = 60 km/h Heavy trucks = 0 Observer-roadway distance = 40.0 m Line-of-sight distance = 40.0 m Barrier position = 3.0 m = 6.0 m Break in line-of-sight distance Angle subtended = 170° Answer: L10 = 51 dBA

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter8: Intersection Control

Section: Chapter Questions

Problem 6P

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