Offering cost-effective ways to reduce traffic congestion in Honolulu
These videos are short, 40 to 90-second clips generated by the VISSIM micro simulation program for Oahu developed by Dr. Panos Prevedouros and his students. A complete description of the benefits of underpasses in general, and these five underpasses in particular, are contained in Transportation Alternatives Analysis for Mitigating Traffic Congestion between Leeward Oahu and Honolulu: A Detailed Microsimulation Study. Directed by Professor Panos D. Prevedouros with the Participation of Undergraduate and Graduate Students Specializing in Transportation Studies. (Page 57 of 122).
The five examples shown, which are estimated to cost $50 million in total, by no means exhaust the possibilities for reducing in town traffic congestion.
In each case, when you click on the links below you are presented with two screens side by side with the one on the left showing the present traffic situation and the one on the right the effects after constructing the underpasses.
You must click on the PLAY buttons on both screens to get them to run. To repeat the video, use the PLAY button in the bottom left corner.
The after is after the installation of a single lane underpass starting on Nimitz in the Diamond Head direction just before Bishop Street proceeding underground to a split where motorists have the choice of going left up Alakea or straight ahead to Halekauwila Street.
The after is after the installation of two single lane underpasses on the Pali Highway under Vineyard Boulevard. One going mauka and the other makai.
The after is after the installation of two single-lane underpasses on Vineyard Boulevard, one is going in the Diamond Head direction and the other flows opposite in the Ewa direction.
The after is after the installation of two single-lane underpasses on Kalakaua Avenue under Kapiolani Boulevard in opposite directions.
The after is after the installation of two single lane underpasses along Kapiolani in opposite directions under the interchange.