SPONSOR: Oregon Department of Transportation

BUDGET: $30,000

ABSTRACT: The outputs of the ODOT ATMS system, including the TripCheck speed map, travel time estimates, and SWARM ramp metering, are only as good as the input data. Data quality issues negatively affect the accuracy of travel time estimates and the quality of SWARM ramp metering decisions. The goal of this project is to develop procedures and a tool to automatically identify data quality problems and poorly-functioning detectors. Such automatic identification of detector mal-function will help to reduce maintenance time in the field and to make more efficient usage of limited maintenance resources. The results of this project will be a tool to identify loop detectors with data quality issues. The tool will be developed in PORTAL. ODOT maintenance personnel will use this tool to help schedule and prioritize maintenance, as such the results of this research will be directly usable by ODOT.

PRODUCTS:

presentation Poonam Singh, "Data Quality Metrics." Transport Meeting 10-14-2009