Local officials embrace the notion of a centrally controlled traffic signal system to enhance signal maintenance response time, better manage customer complaints, reduce motorist delays on major arterials, lower fuel consumption, and reduce harmful air emissions within the City.
During the conduct of a Major Arterial Corridor Study on Central Avenue by Sebago Technics, it was discovered that traffic operations were less than optimum – resulting in excessive delays, added fuel consumption and increased air emissions. Working with Public Works and IT staff, and the City’s traffic signal maintenance contractor, Sebago’s engineers are in the process of implementing the vision for a city-wide centrally managed traffic signal management system. The platform that is being used is McCain’s TS 2, Type 1 controller operated by Transparity central management software. A total of five coordinated systems (involving 17 signals) have been identified along major arterials across the City. Interconnection is a mixture of FSK copper with Ethernet boosters, fiber optic cabling, and ethernet radios. Communications back to the central server located at Community Services also utilizes ethernet radios mounted on various structures throughout the City. Remote access to the central server is through a secure VPN link to allow Sebago to daily monitor system operations.
Real-time data collection 24/7 has been implemented by installing Gridsmart video detection and retrofitting existing stop bar loop detectors with dual channel amplifiers that can record reliable volume data as well as provide presence detection. This information is being stored and used by Sebago Technics to monitor volume and pattern characteristics of the network throughout the year and make refinements in signal programming to account for any observed background growth or seasonal variations.
Project DetailsDover Traffic Signal System
- Client: City of Dover
- Location: Dover, NH
- Project is : Current
- Partners: Electric Light Company and McCain, Inc.