For the 2020 hurricane season, District 3 developed the eSTORM system which included adding traffic signal status fields with pictures to already in place databases, enhancing the mobile app to input data directly into the database through drop-down menus, and upgrading efforts for traffic control and detours through connected portable traffic signals, cameras, and changeable message signs which communicate with the D3 Regional Transportation Management Center (RTMC). As a result, eSTORM is now a statewide storm management tool.
2023
Early Warning Dust Detection Warning System
With an overall goal is to enhance awareness, mitigate traffic delays, and reduce crashes due to low visibility dust events, ADOT deployed an early warning dust detection warning system along a 10-mile segment of I-10 near Eloy, Arizona that uses remote sensing equipment to automatically control speed limits during periods of low visibility.
Disseminate Roadway Conditions (Speed Differentials) Through a Cell Phone App Using Vehicle-to-Everything (V2X) Technology
Speed differentials from non-recurring incidents, congestion, or work zones can cause crashes into the back-of-queue. This project identifies a solution that provides timely and accurate information regarding roadway conditions while minimizing costs and utilizes V2X technology to disseminate safety notifications through a cell phone app and a cloud-based edge computer that compliments existing methods.
Incident Response Unit Program (IRU) Program to Restore Traffic Flow Quickly and Safely
The ADOT IRU program provides a multi-jurisdictional and coordinated strategy to detect, respond to, and clear traffic incidents so that traffic flow can be restored quickly and safely. Since the inception of the IRU program, reduction of response time to incidents has led to less traffic delay, congestion, and air quality issues. The IRU program also saved overtime hours for maintenance crew staff, which resulted in cost savings that could be returned to highway maintenance programs.
Statewide Mobility Analytics in Real-Time (SMART) Tool for Better Freeway Performance
ADOT partnered with the University of Arizona to develop the SMART tool, which integrates data from INRIX, loop detectors, and controller event-based data to provide a comprehensive operations analysis suite. The benefits this project brings include not only better freeway performance for the public, but it balances the ramp performance to better meet the needs of local agencies.