Introducing and Evaluating the Operational Performance of a New Interchange Design: The Continuous Green-T Median U-Turn Interchange
This study proposes a new design called the continuous green-T median U-turn (CGT-MUT) interchange and evaluates its operational performance compared to three interchanges. The selected interchanges for comparison are the Superstreet, Single Point Diamond Interchange (SPDI), and the Synchronized interchange. The evaluation is based on a microsimulation environment created in VISSIM combined with ASC/3 Software-in-the-Loop signal controllers. The findings show that the CGT-MUT enhanced the network-wide and intersection-level operations regarding various measures of effectiveness. Additionally, while the CGT-MUT did not always outperform all the other designs in terms of the on-ramp turning traffic travel times, it outperformed the Superstreet and Synchronized in terms of the off-ramp turning traffic travel times and resulted in the least through traffic travel times for all the tested scenarios. Particularly, the CGT-MUT’s through travel times were 9% – 30%, 26% – 42%, and 13% – 38% less than those for the Superstreet, SPDI, and Synchronized interchanges, respectively.
Copyright (c) 2023 Journal of Road and Traffic Engineering
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License CC BY-NC that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).