oa Civil Engineering = Siviele Ingenieurswese - potensiële gevaar van paaie teen hellings

Volume 33, Issue 7
  • ISSN : 1021-2000



Guidelines for the geometric design of highways and streets are used to calculate minimum radii for horizontal curves and maximum curvature for vertical curves. Sight distance should always be greater than the stopping distance of vehicles. Current guidelines apply the stopping distance on a horizontal road to determine stopping sight distance, which results in an underestimation of the required radius or curve length on downgrades. A procedure was proposed that allows the engineer to take stopping distance on specific grades into account in road design.

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