Lessons

Latest Lessons Learned Updates

Conduct bench testing prior to field installation of transit signal priority (TSP) equipment to verify functionality between detectors, signal controllers, phase selectors, and cabinet design.
Date Posted: 09/26/2017 | Source Date:
Requiring HOT lane users to be subject to visual inspection systems can help quantify and limit the number of occupancy violators in managed lanes.
Date Posted: 09/26/2017 | Source Date:
Maintain active communications regardless of system states, faults, or emergency kill switches to ensure the safety and function of cooperative adaptive cruise control truck platoons.
Date Posted: 09/26/2017 | Source Date:
Separately deploying mileage-based user fee and in-vehicle safety alert functions helps ensure each technology has the best opportunity for user acceptance.
Date Posted: 09/26/2017 | Source Date:
Increase ownership of plug-in electric vehicles by minimizing the installation cost of electric vehicle supply equipment at major employment centers.
Date Posted: 09/20/2017 | Source Date:
Variable speed limit system site selection should be rigorous and incorporate analysis of existing speed profiles and roadway ingress/egress characteristics to assure proper spacing of VSL systems and sensor inputs.
Date Posted: 09/15/2017 | Source Date:
Periodically assess the accuracy and reliability of parking management vehicle sensors and predictive algorithms to assure performance under a variety of weather conditions and traffic situations.
Date Posted: 08/30/2017 | Source Date:
Arbitrate driver warnings generated by in-vehicle systems to prevent confusion in cases where multiple warnings are presented in multiple threat scenarios.
Date Posted: 08/30/2017 | Source Date:
Invest in automated bicycle-pedestrian counters to both save time over doing manual counts and provide the ability to track continuous data over longer periods of time.
Date Posted: 08/30/2017 | Source Date:
Consider the following three criterial when screening candidate sites for active traffic management solutions: limited capacity improvement options; operations and maintenance resources; and ability to coordinate among stakeholders.
Date Posted: 08/07/2017 | Source Date:
ITS Deployment Evaluation

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