A horizontal curve has a radius of 650 ft, measured to the right edge of the rightmost lane. The lane width is 12 ft. The nearest visual obstruction is 12 ft from the edge of the rightmost lane. Calculate the available sight distance (to the nearest ft). Does the driver of a vehicle traveling at 35 mph have adequate stopping sight distance?

A horizontal curve has a radius of 650 ft, measured to the right edge of the rightmost lane. The lane width is 12 ft. The nearest visual obstruction is 12 ft from the edge of the rightmost lane. Calculate the available sight distance (to the nearest ft). Does the driver of a vehicle traveling at 35 mph have adequate stopping sight distance?

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter3: Characteristics Of The Driver, The Pedestrian, The Bicyclist, The Vehicle, and The Road

Section: Chapter Questions

Problem 20P

See similar textbooks

Similar questions

A large grain elevator is located 40 feet from the centerline of a two-lane highway (55 mph speed limit, 12-ft lanes and level terrain). The elevator is situated on the inside of a horizontal curve with a radius of 500 feet measured to the centerline of the highway. Assuming that the elevator is the only sight restriction on the curve, what is the available sight distance along the curve (measured to the center of the inside lane)? Does adequate stopping sight distance exist?
Qg:- A horizontal curve with a radius of 200 m forms part of a two-lane highway with a posted speed of 50 Kph. Determine: 1)) The distance a house can be placed from the centerline of the inside of the curve without reduced the required stopping sight distance? 2)) Length of circular curve ? Assume perception reaction time is 2.5 sec., the highway is flat, lane width = 4 m, and central angle A = 25°.
The angle of intersection of a circular curve is 36° 30'. The external distance and speed are 39.43 ft. and 73.33 ft/s, respectively. What is the minimum distance that a large billboard can be placed from the centerline of the inside lane of the curve without reducing required SSD?
A large grain elevator is located 40 feet from the centerline of a two-lane highway (55 mph speedlimit, 12-ft lanes and level terrain). The elevator is situated on the inside of a horizontal curvewith a radius of 500 feet measured to the centerline of the highway. Assuming that the elevatoris the only sight restriction on the curve, what is the available sight distance along the curve(measured to the center of the inside lane)? Does adequate stopping sight distance exist?
QUESTION 15 What is the length (ft) of a simple horizontal curve which has 35 degrees of curvature and subtends an angle of 110 degrees? QUESTION 16 For a horizontal curve, how is the stopping sight distance measured? O Along the center of the roadway. O Along the center of the inside lane. O Along the center of the outside lane. O Along the inner edge of the inside lane.
Q2) A 5° curve is being designed for a four 12 ft lanes highway with a design speed of 75 mi/h. The highway located within +2, and -5 % vertical alignment, and driver reaction time will be taken as 2.5 s. What is the closest any roadside object may be placed to the centerline of the inside lane of the roadway? s? - s} 30(0.348 王 0.01G) 5729.58 ds = 1.47 * S;*t + D = R 5729.58 (28.65 d M = 1 - cos M = R1 - cos 200 R
Q2) A 5° curve is being designed for a four 12 ft lanes highway with a design speed of 75 mi/h. The highway located within +2, and -5 % vertical alignment, and driver reaction time will be taken as 2.5 s. What is the closest any roadside object may be placed to the centerline of the inside lane of the roadway? s? – S} 30(0.348 F 0.01G) 5729.58 ds = 1.47 * S; t+ D = R 28.65 ds d,D' 1- cos 200 5729.58 M = M = R1 - cos R
A horizontal curve has a radius of 750 ft, measured to the centerline of the highway. The highway has two lanes in each direction. The lane width is 12.0 ft. A billboard blocking driver's sight is located at 14.0 ft from the edge of the right lane. Calculate the available sight distance (to the nearest ft).
QUESTION 5 Calculate the horizontal sight line offset (ft) for a curve with a radius of 600 ft and a design speed of 40 mph. QUESTION 6 A simple horizontal curve has 35 degrees of curvature and subtends an angle of 110 degrees. If the PC is at station 3 + 65.00 ft, what is the first deflection angle (degrees) (i.e. the angle subtended by the roadway between the PC and the first full station)?
A horizontal curve with a radius of 800 ft connects the tangents of a two-lane Highway that has a posted speed limit of 35 mi/h. If the highway curve is not super elevated, e =0, determine the horizontal sightline offset (HSO) that a large billboard can be placed from the centerline of the inside lane of the curve, without reducing the required SSD. Perception-reaction time is 2.5 sec, and f = 0.35. when S<L and S>L.
A simple horizontal curve has 35 degrees of curvature and subtends an angle of 110 degrees. If the PC is at station 3 + 65.00 ft, what is the length (ft) of roadway between the first full station and the second full station on the curve? Response Feedback: The first full station occurs at 4+00 and the next full station occurs at 5+00
The stopping sight distance along four lane two way highway is 250 ft. The highway includes a horizontal curve where the center line of the innermost lane has a radius of 100 ft. The width of each lane is 12 ft and the width of each shoulder lane is 5 ft. What minimum distance (ft) from the innermost edge of the shoulder lane can a large object be placed?