Design & Replacement The Diverging Diamond Interchange Versus Spring 2013 Single Point Urban Interchange

The increase in surface transportation and number of vehicle miles traveled has led to new challenges for the transportation planners and engineers of ascertaining safe and uninterrupted flow of people and goods. These challenges can be met by employing some innovative and cost-effective methodologies for solving transportation problems. One of these methodologies is the Diverging Diamond Interchange (DDI). This paper presents the results of a study comparing two alternative interchange designs- Diverging Diamond and Single Point Urban Interchange. The two alternatives are studied for a range of volume scenarios using traffic micro simulation and the better performance in each scenario for Diverging Diamond Interchange in terms of delay, travel time, maximum queue length etc are reported.