Business Challenge On June 20, 2015, a Saturday, a power failure was detected at an intersection within the City of Sandy Springs. Immediately a text message and email was sent to the Sandy Springs traffic engineers alerting them about the power failure. A second alert message was sent out to confirm that the battery back up
Background – “The Dilemma Zone” The Vantage Vector hybrid detector has the ability to address dilemma zone applications, those times when vehicles approaching the stop bar aren’t sure what to do when the light turns yellow. The typical driver sees the light change from green to yellow, and the panicked thought is “Oh no! I’m
Summary This application note presents the appropriate application of the Vector® hybrid detector to the FHWA-developed, low-cost adaptive traffic control system, ACS-Lite. Vector employs both video and radar technologies, integrated in a single unit. Facts about ACS-Lite Using a ‘Case Study’ Paradigm In what may be the largest and most successful deployment of ACS-Lite in
Tyler Texas: 29 intersections on a loop that carries 40,000 vehicles daily Challenge: Loop corridor joining 3 ACS-Lite systems (maximum capacity is 16 intersections for a single system) and managing traffic flow to minimize congestion. Loop is unique as there is no access-controlled freeway within City limit, thus increasing the vehicle volume. First Attempt: Side-fire
Monitoring of solar school beacons The following failure modes need to be detected by the monitoring system. Is the battery voltage dropping low overnight, indicating imminent failure? Has the battery been stolen? Has the solar panel been stolen? Has the vegetation grown over the solar panel (or dirt degraded the performance) so that the solar