Standard work zone equipment is integrated with the ATMS system through several efforts including speed management (Variable Speed Limits (VSL) for both dynamic and static displays of speed limit), ramp metering (a pilot deployment within a work zone that can deploy both static and dynamic ramp metering), and traveler information (work zone travel time, use field detectors and/or probe data to provide queue related messaging, and Integrated Corridor Management).
2021
Combined Situational Data Sources to Delineate When Incidents Truly Occurred
PennDOT had a need for better data aggregation and analysis to support decision making. In 2015, PennDOT started an initiative to audit the readily available DOT and vendor data resources that related to Transportation Systems Management and Operations (TSMO). PennDOT combined situational data sources to more accurately delineate when incidents truly occurred, how long it took them to be cleared, and what their overall impact on traffic was.
Arterial Probe Data has Improved Signal Prioritization
Arterial probe speed data for PennDOT has provided the ability to evaluate the impacts and benefits over a longer period of time to assist in signal prioritization.
Floating Car Method Reduced with Arterial Probe Speed Data Use
ODOT has achieved savings (and is obtaining better data) for travel time studies and signal
timing contracts, as less time and effort is dedicated to the floating car method for these
studies.
Revised Process for Speed Studies Using Arterial Probe Data
ODOT revised their speed limit study tool (due to the pandemic) and is using it to understand actual speeds in the field from arterial probe data rather than physically driving to sites to conduct speed studies.
Probe Data Providing Data-Driven Approach to Identify Congestion Reduction Projects
Use of arterial probe speed data has provided NCDOT with a data-driven approach for selecting which corridors to retime each year as opposed to previously a very subjective process.