TDD - Software Tool for coordinating signalised intersections.
TDD is a Windows based software program which assists with the task of determining the optimal traffic signal timing parameters that would allow for the most efficient traffic progression along a route of multiple intersections.
The main function of TDD is the production of Time vs Distance Diagrams for a set of coordinated signalised intersections.
This program takes input of intersection parameters such as phase times & offsets, traffic speed and distance to graphically display the time distance diagram for the intersection set. Adjustment of intersection offsets to graphically display the maximum Green Band or traffic throughput for the intersection set assists in the determination of the optimal coordination plan.
TDD was written by me - Craig Harris, when I was a Traffic Engineer for Main Roads on the Gold Coast in 2004. Back then I could not find such a tool do enable quick and easy analysis of signalised intersections with time distance diagrams.
TDD is Free to download and use.
Download the Setup Program here