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Abstract Jarak Village, Jombang Regency in Indonesia has a conditions of the geometric structure of a narrow road with sharp turns. In addition, the village has many tourist attractions, so it often attracts tourist to vacation. Tourist arrivals will affect the economy, it is necessary to evaluate the geometric planning of road bends that have a elevation more than three percent its mean do not match the standard Highway Department of Indonesian method, therefore it is carried out using the Spiral Circle Spiral (SCS) calculation. The purpose of this research is to plan the geometric road bend using the SCS type to produce a plan on a bend with a design that meets the standard of the Highways method. The method in this research was a survey of the geometric conditions the roads. From the geometric condition data that was analysis would be carried out using the SCS type Highway Department of Indonesian method, with radius analysis on bends, and horizontal alignment visibility. The results of the research showed a transition curve (Ls). For more discuss can be describe the arc length and spiral angle will be calculated so that an road bend design is obtained.
Wibisono et al. (Wed,) studied this question.