STUDYING THE EFFECT OF HIGHWAY CHARACTERISTICS ON GUTTER DESIGN BY SIMULATION MODEL

Abstract

Gutters are used to drain water way off to the Inlet. This process significantly reduces the phenomenon of hydroplaning and thus reduces traffic accidents. The main objective of this study is to evaluate the effect of the characteristics road (manning's coefficient, longitudinal slope, and cross slope) on the capacity of gutter, and spread as well as the change which was clarified for all gutters types. Two simulation models have been developed in this study, which represent the major components of the system. These models are spread Model (SM), Gutter Capacity Model (GCM), and the first model studies spread if rain information is available, while the second model studies a gutter capacity if no rain information is available. The study reached at the conclusion: gutter capacity is inverse proportion with manning’s coefficient and directly proportional with cross slope and longitudinal slope for road. Affect spread is different according to form gutter.