Typical lane widths range from ______ metres to _____ metres.(a) 1, 2.4(b) 10, 12.6(c) 3, 3.6(d) 8, 8.6I got this question in an interview for job.My doubt stems from Estimate of Earthwork by Three Methods in chapter Road Estimating, Sanitary and Water Supply Work of Civil Engineering Drawing

Typical lane widths range from ______ metres to _____ metres.(a) 1, 2.

1.	Typical lane widths range from ______ metres to _____ metres.(a) 1, 2.4(b) 10, 12.6(c) 3, 3.6(d) 8, 8.6I got this question in an interview for job.My doubt stems from Estimate of Earthwork by Three Methods in chapter Road Estimating, Sanitary and Water Supply Work of Civil Engineering Drawing
Answer» Correct ANSWER is (c) 3, 3.6 Explanation: WIDER lanes and shoulders are usually used on roads with higher speed and higher volume traffic, and significant numbers of trucks and other large vehicles. Narrower lanes may be used on roads with lower speed or lower volume traffic. Narrow lanes cost less to build and maintain, but also reduce the capacity of a ROAD to convey traffic. On rural roads, narrow lanes are likely to experience higher rates of run-off-road and head-on collisions. Wider roads increase the time needed to walk across and increase STORM water runoff.

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