Possibilities of Using the Direct Runoff Model KINFIL for a Road Network Design

Abstract

The paper provides a practical implementation of the hydrological model KINFIL to be used for design­ing an optimal road density system in areas where agricultural or forestry production does not play an important role. In particular, such a road system project is based on the physiographic characteristics of land. Input data for a direct runoff analysis are computed in relation to the geometric parameters of upstream sub-catchments using the method of maximum daily precipitation reduction. Computed direct runoff discharges depend mainly on soil and vegetation conditions. Besides the soil type characteristics, the length and the angle of hill slopes to be drained by a road drainage system are major parameters determining the road density. These discharges are further assessed for road drain capacities designed according to the Czech Standard System (ČSN).

Keywords

• road network
• off-production area
• hydrological model