Sequence and Offset Optimization at a Diamond Interchange

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By Alexander M. Hainen1, Howell Li1, Amanda Stevens2, Darcy Bullock1

1. Purdue University 2. Indiana Department of Transportation

This video demonstrates the optimized performance at a diamond interchange at I-69 / 96th Street in northeast Indianapolis, IN.

Version 1.0 - published on 10 Mar 2014 doi:10.4231/R7VD6WCH - cite this Archived on 25 Oct 2016

Licensed under CC0 1.0 Universal

Description

Signalized diamond interchanges are unique pairs of intersections characterized by interlocked left turns and relatively close spacing between ramps. A diamond interchange has four external entry points (origins) and four external exit points (destinations). To effectively operate a diamond interchange, it is critical to examine the external origin-destination paths and evaluate their impact on the interior storage and progression. This video demonstrates the optimized performance at a diamond interchange at I-69 / 96^th^ Street in northeast Indianapolis, IN. The movement observed is the westbound thru movement and depicts an animated time space diagram based on high-resolution event-based data. '''Latitude/Longitude:''' 39.927108° / -86.029641°

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