The design speed of a highway is 80 km/h. There is a horizontal curve of radius 200 m in a certain locality. What should be the superelevation required to maintain this design speed? If the maximum superelevation of 0-07 is not to be exceeded, what should be the maximum allowable speed on this curve ? Also determine the extra widening required and length of transition curve using the following data: Length of wheel base of the largest vehicle = 6-1 m Pavement width=7-2 m Number of lanes = 2 Rate of introduction of superelevation = 1 in 200 Type of terrain Plain Safe limit of coefficient of friction = 0.15

The design speed of a highway is 80 km/h. There is a horizontal curve of radius 200 m in a certain locality. What should be the superelevation required to maintain this design speed? If the maximum superelevation of 0-07 is not to be exceeded, what should be the maximum allowable speed on this curve ? Also determine the extra widening required and length of transition curve using the following data: Length of wheel base of the largest vehicle = 6-1 m Pavement width=7-2 m Number of lanes = 2 Rate of introduction of superelevation = 1 in 200 Type of terrain Plain Safe limit of coefficient of friction = 0.15

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter15: Geometric Design Of Highway Facilities

Section: Chapter Questions

Problem 19P

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