الفهرس Only 14 pages are availabe for public view
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Abstract
Capacity is a central concept in design and operation of roadways. Estimation of capacity is an important issue for planning and design of highway facilities. Studying the relation between different geometric features and roadway capacity is very important and can lead to significant improvements in the planning and design stages. The main objective of this research is to model the relation between the different geometric features of the horizontal alignment with the capacity of tangent and curved elements of two-lane two-way highways and to model the capacity loss between tangent and curved elements. Another objective is to study the impact of carriageway width on passenger car unit (PCU) values. Traffic and geometry data were collected from six sites which are located on benisuif - assiut Agricultural road, Egypt. Each site is composed of two elements; a straight element (tangent) and a succeeding horizontal curve