, Professor, UMD-Electrical Engineering
For the new fiscal year (FY 2004/2005), TDRL will continue to archive the statewide RWIS and traffic data and provide data services to Mn/DOT along with new tasks. New tasks directly related to the data archives include: (1) development of UTSDF archiving system for the Mn/DOT RWIS server, (2) conversion of the present five years of binary traffic data to UTSDF, and (3) development and distribution of RWIS data extraction and analysis tools. These tasks have been completed. While working with Mn/DOT on developing the WIM probing system in the previous year, TDRL learned that present WIM systems are expensive not by the nature of the system but by an inefficient design. As a result, only few WIM systems have been installed and used in the state, even though many freight researchers and planners and other applications need comprehensive statewide WIM data. TDRL recognizes the importance of WIM data and will study a new efficient design of WIM data acquisition systems. According to TDA, it has been a continuing challenge in using pneumatic tubes on gravel roads for traffic counting. Gravel roads increase the risk of tube punctures and thereby the time needs to check for hole. Also, under loose gravel conditions gravel tends to accumulate around the tubes minimizing sensitivity of tires. Additional challenge in rural roads is that they do not have access to electric power, such that the device must operate many days with only battery power. According to Mn/DOT, no practical and reliable devices are presently available for traffic counting in rural gravel roads. Recently, TDRL has successfully developed a magnetometer-based non-intrusive traffic counter for rural gravel roads. This new counter is much more accurate and reliable than tube counters and easy to install.
- Project number: 2005019
- Start date: 07/2004
- Project status: Completed
- Research area: Transportation Safety and Traffic Flow
Data and modeling