Evaluation of horizontal curve radius in overlap with longitudinal slope and vertical curve
Evaluation of horizontal curve radius in overlap with longitudinal slope and vertical curve
- New search for: Aboutalebi Esfahani, Mohsen
- New search for: Hojjati, Sayyed Mohammad Farid
- New search for: Aboutalebi Esfahani, Mohsen
- New search for: Hojjati, Sayyed Mohammad Farid
The equations used to calculate horizontal curve radius are presented in geometric design regulations based on the following assumption: the curve is on the flat ground without overlap with longitudinal slope or any vertical curve. The aim of this study is to evaluate the effect of overlapping longitudinal slope and vertical curves on the horizontal curve radius. For this purpose, three different cases are investigated: horizontal curve in a flat road, horizontal curve in a sloping road, and horizontal curve in the presence of a vertical curve. For the above-mentioned cases, different forces are exerted on the vehicle. The direction of their effect is modeled using the point-mass method, and the equations for determining minimum horizontal curve radius are extracted. The results demonstrate that the equations for the overlap of a horizontal curve with a crest vertical curve indicate a need for increasing the horizontal curve radius in some cases.
Document information
Evaluation of horizontal curve radius in overlap with longitudinal slope and vertical curve
Transportation Letters ; 13 , 4 ; 263-272
2021-04-21
10 pages
Article (Journal)
Electronic Resource
Unknown
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