NHDOT Wireless ATMS Expands to I-95

Green Mountain Expands Wireless ATMS System to I-95 for New Hampshire Department of Transportation (NHDOT) – Project Completed 2012

Challenge

The New Hampshire Department of Transportation (NHDOT), upon completion of an advanced traffic management system (ATMS) along the I-93 corridor, sought to expand its multi-faceted approach to managing state roadways by installing another ATMS along the I-95 corridor. NHDOT once again partnered with Green Mountain to design and deploy an ATMS that would improve traffic monitoring and emergency communication along I-95 and, essentially, throughout all major transportation corridors in New Hampshire. One of the crucial challenges the NHDOT sought to overcome was the public safety requirement for fault tolerance and resiliency of ITS networks throughout New Hampshire.

Situation

Due to this requirement, the NHDOT was faced with expensive, short-term solutions and the repeated duplication of network devices in order to comply. Green Mountain set out to design a right-fit traffic management solution that would address New Hampshire’s challenges now and in the future. As the first project of its kind for the Seacoast, Green Mountain sought to replicate the success of the ATMS installed along I-93. The expanded I-95 ATMS, including field locations along Route 101 and US Route 4, required the installation of strategically located ITS devices that would be controlled by the central Traffic Management Center (TMC) in Concord.

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