Summary

This plan unifies two proposals in a system approach: TS 601-A and TS 601-B. TS 601-A, entitled "Causes of Detector Failure and Performance of Detector Fitness Program," considers loop fault detection by considering data from several loops. Faults include communication failure, systematic failures (looking at differences by freeway and by lane), electrical failures (splicing problems or detector card failures), synchronized failures, and the effectiveness of the Detector Fitness Program.

TS 601-B approaches the problem differently by using PeMS to identify errors in the data and proposing tools to correct those errors. It then proposes to locate suspicious fault loops and identify possible explanations for the fault.

The tasks involved in confirmed Master Agreement are as follows: 1) set up an advisory committee, 2) collect data, formulate and estimate fault models, 3) preliminarily code the "reporter generator" software and establish a data connection with PeMS, 4) code the software for scheduling and tracking suspect loop detectors for on-site diagnostics, 5) hardware and relevant software development, 6) develop roadside ground truth estimation based on Caltrans' PTZ Camera for vehicle tracking, and 7) compare the wireless communication systems using PeMS data to find out which system is best and provide a recommendation.

An expected extension to the Master Agreement would include: 1) finalizing the coding for the "report generator" software and finalizing the establishment of a data connection with PeMS, 2) finalizing coding the software tool for scheduling and tracking loop detectors for on-site diagnostics, 3) further developing roadside ground truth estimation based on Caltrans' PTZ Camera for vehicle tracking, 4) developing a data comparison software, 5) completing on-site testing, refining, and demonstration, 6) documenting off-site portable tool development, and 7) preparing a final report and workshop with Caltrans.

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