Best practices for transition design of concrete pavement intersections and related transitions

Pavement transitions are one of the key elements of pavement performance often overlooked in the design process. Improperly designed pavement transition elements lead to poor pavement performance and often creating a need for frequent maintenance and repair. Transition elements are necessary to ensure a smooth transition between two different pavement sections and to minimize future pavement performance issues. This paper addressed the transition of intersections, ramp/gore areas, drainage inlets, and the conversion between a portland cement concrete and asphalt concrete materials. The design standards of most state Department of Transportation (DOT) were reviewed and the best practices identified toward incorporating them into a set of guidelines for design and construction purposes. Moreover, field visits were conducted to survey the conditions of these transition types relative to slab cracking and associated distresses due to inappropriate jointing or other design-related factors. Based on this information, specific design practices are suggested to enhance the design standard for different transition types based on simple and sound concepts substantiated by observed field performance. The guidelines address the design of concrete pavement transition areas including joints and related details.

9th International Conference on Concrete Pavements: The Golden Gate to Tomorrow's Concrete Pavements

Best practices for transition design of concrete pavement intersections and related transitions Conference Paper