ou are going to design a circular curve in a rural road segment where the design vehicle is a passenger car of operation speed is 90 km/h. The width of the lanes of the proposed road is 3.5m. Based on a survey at the proposed site, it has been found that a multi-storied building is located towards the inside of the curve at 10 m from the centerline of the highway. Considering perception reaction time as 2.5 s design the horizontal curve (Rdesign,

Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter14: Highway Surveys And Location
Section: Chapter Questions
Problem 17P: The following table shows the stations and ordinates for a mass diagram. The free-haul distance is...
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You are going to design a circular curve in a rural road segment where the design vehicle
is a passenger car of operation speed is 90 km/h. The width of the lanes of the proposed
road is 3.5m. Based on a survey at the proposed site, it has been found that a multi-storied
building is located towards the inside of the curve at 10 m from the centerline of the
highway. Considering perception reaction time as 2.5 s design the horizontal curve (Rdesign,
edesign and fdesign) for that road segment. Record the radius and respective safe sight distance
in the tabular format while selecting design radius (word table), plot them in Excel graph
and find the Rdesignfor the safe sight distance. If there is no superelevation, what would be
the alternative arrangement?

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