State of the Art of Highway Geometric Design Consistency
- 1 July 1999
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Transportation Engineering
- Vol. 125 (4), 305-313
- https://doi.org/10.1061/(asce)0733-947x(1999)125:4(305)
Abstract
Achieving highway geometric design consistency is an important issue in the design and evaluation of rural highways to attain smooth and safe traffic operation. This paper presents a comprehensive literature review of highway geometric design consistency mainly on two-lane rural highways in North America and Europe. Previous research work on highway geometric design consistency is categorized into three main areas: (1) Speed considerations; (2) safety considerations; and (3) performance considerations. Speed considerations address the different effects of geometric parameters on the prediction of operating speed. Based on operating speed, design consistency of highway elements can be evaluated. Safety considerations explain the different relationships between highway safety and highway/traffic elements, vehicle stability, and low-cost improvements. Performance considerations address the different effects on driver workload, driver anticipation, highway aesthetics, and interchange design. Based on this review, a framework for highway design consistency is proposed, and recommendations for future research work on design consistency are suggested, including the need to develop operating speed consistency models based on 3D analysis.Keywords
This publication has 7 references indexed in Scilit:
- Superelevation, Side Friction, and Roadway ConsistencyJournal of Transportation Engineering, 1998
- Design Considerations of Sight Distance Red Zones on Crest CurvesJournal of Transportation Engineering, 1998
- Formulation and Validation of Operating Speed-Based Design Consistency Models by BootstrappingTransportation Research Record: Journal of the Transportation Research Board, 1997
- Safety at Curves and Road Geometry Standards in Some European CountriesTransportation Research Record: Journal of the Transportation Research Board, 1996
- Preliminary Validation of a Speed-Profile Model for Design Consistency EvaluationTransportation Research Record: Journal of the Transportation Research Board, 1996
- Probabilistic Approach to Consistency in Geometric DesignJournal of Transportation Engineering, 1987
- Consistency in Design for Low‐Volume Rural RoadsJournal of Transportation Engineering, 1985