Traffic And Highway Engineering
5th Edition
ISBN: 9781133605157
Author: Garber, Nicholas J., Hoel, Lester A.
Publisher: Cengage Learning,
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Chapter 16, Problem 3P
To determine
The two main disadvantages of using turf cover on unpaved shoulders.
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An area of planned construction is underlain by sandy soil where the angle of internal friction is 35°.(a) What is the maximum safe slope angle for this soil if there is no groundwater flow?(b) If it is assumed that groundwater flow could occur through the slope, approximately what slope angle should be considered as the allowable maximum?
2. Bushes grow near a two-lane highway circular curve with R = 160 m (measuredfrom centreline of the highway). Minimum stopping sight distance is 150 m. Totalwidth of pavement is 7.0 m. How near from the edge of the pavement can you allowthe bushes to grow? (ans M=15.69m and Minimum SSD= 150m)
a highway has +2.0% grade followed by a -2.0% grade. the PVC is at STA(1033+58.00) and the PVT is at STA(1040+62.00). If the PVC is at elevation of 4230.19 ft what is the elevation of the highway surface at STA(1036+00.00)?
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Traffic And Highway Engineering
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- 2. Bushes grow near a two-lane highway circular curve with R = 260 m (measured from centreline of the highway). Minimum stopping sight distance is 150 m. Total width of pavement is 7.0 m. How near from the edge of the pavement can you allow the bushes to grow?arrow_forwardPlease correct solutionarrow_forwardPlease read the question carefully and give me right solution according to the questionarrow_forward
- From station 0 + 040 with center height of 1.2m. fill, the ground line makes a uniform slope of 6.5% to station 0 + 100,whose center height is 3.5 m. Findthe grade of the finished roadway. Select the correct answer: A. - 1.33%B. -2.00%C. + 2.00%D. - 1.85%arrow_forward1. There is a horizontal highway curve of radius 400 m and length 200 m on this highway. Compute the set – back distance required from the center line on the inner side of the curve so as to provide for:a. SSD of 90 m;b. Safe SSD of 300 m 2. An abandoned pile of containers are located 7.5 m from the edge of the outer lane of a two-lane highway, which has 3.4 – m lanes. The obstruction is situated on the inside of a 12° horizontal curve. Use metric arc basis.a. Calculate the minimum sight distance along the curve. b. Calculate the design speed for this curvec. If the design speed calculated from part b is increased by 20 kph, calculate the distance required for the movement of the obstruction.arrow_forwardO 1::0Y O Home Work No 2.. Home Work No. 2 A vehicle initially traveling at (75 mile/hr.), skids to a stop taking (170) m to do so. the coefficient of skidding resistance (0.36). What should the grade be for this roadway. (Use t = 2.5 sec.). II >arrow_forward
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