CHAPTER 400 – INTERSECTIONSAT GRADE - Caltrans

Highway D esign M anual 400-1 July 1, 2020 CHAPTER 400 INTERSECTIONS AT GRADE Intersections are planned points of conflict where two or more roadways join or cross. At- GRADE intersections are among the most complicated elements on the highway system, and control the efficiency, capacity, and safety for motorized and non-motorized users of the facility. The type and operation of an intersection is important to the adjacent property owners, motorists, bicyclists, pedestrians, transit operators, the trucking industry, and the local community. There are two basic types of at GRADE intersections: crossing and circular. It is not recommended that intersections have more than four legs. Occasionally, local development and land uses create the need for a more complex intersection design. Such intersections may require a specialized intersection design to handle the specify traffic demands at that location. In addition to the guidance in this manual, see Traffic Operations Policy Directive (TOPD) Number 13-02: Intersection Control Evaluation (ICE) for direction and procedures on the evaluation, comparison and selection of the intersection types and control strategies identified in Index Also refer to the Complete Streets Intersection Guide for further information.

Jul 01, 2020 · intersections. It is published by the California Division of Traffic Operations. 401.2 Human Factors (1) The Driver. An appreciation of driver performance is essential to proper highway design and operation. The suitability of a design rest s as much on how safely and efficiently drivers are able to use the highway as on any other criterion.

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