ITS in the corridor consisted of internet-based pre-trip advanced traveler information systems (ATIS), highway advisory radio (HAR), ramp metering, and dynamic message signs (DMS). The performance of these systems was analyzed through a series of simulations that evaluated four alternatives:
- Ramp metering.
- Variable message signs.
- Existing-ITS (ATIS, HAR, ramp metering, and DMS).
The INTEGRATION simulation model was used to generate peak PM arterial and freeway corridor conditions for roughly 40,000 to 50,000 vehicles per hour during 80 different scenarios of impedance (varied weather, incident patterns, etc.). The model was calibrated using flow and speed data derived from field observations.
The simulation results indicated existing ITS technologies in the corridor (ATIS, HAR, ramp metering, and DMS) increased average vehicle speed up to 5.4 mi/h, decreased average trip time by approximately 4.6 minutes, and reduced commuter delay by as much as 22 percent.
(Our website has many links to other organizations. While we offer these electronic linkages for your convenience in accessing transportation-related information, please be aware that when you exit our website, the privacy and accessibility policies stated on our website may not be the same as that on other websites.)