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Paul Merrill, Public Information Officer - 207-624-3355 or 207-215-9297

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UPDATE: Dynamic Part-Time Shoulder Use System Testing on I-95 in Portsmouth and Kittery [ [link removed] ] 09/14/2023 02:50 PM EDT
UPDATE: The beginning of testing has been postponed to the week of September 25th.

ORIGINAL PRESS RELEASE FROM SEPTEMBER 11TH.

KITTERY - This week, the New Hampshire Department of Transportation (NHDOT), in partnership with the Maine Department of Transportation (MaineDOT) and the Maine Turnpike Authority (MTA), will begin testing the messaging components for the new dynamic part-time shoulder use (PTSU) system that was recently installed on I-95 between Portsmouth, New Hampshire and Kittery, Maine. This system was developed to help relieve congestion during peak traffic times on the I-95 Piscataqua River Bridge between the two states. Testing is scheduled to begin at night on Thursday, September 14th.

Nighttime shoulder closures, both northbound and southbound, will occur intermittently over the next several weeks for final system testing. Motorists will see the system's messaging components (beacons and lane use signals) turn on and off at various times during the testing. Message boards will be utilized to alert travelers that tests are being performed. The shoulder lanes will remain closed to through traffic and should only be used for emergencies. A final press release will announce the date the system will become operational for motorists.

**About the New System**

Anyone who regularly travels along I-95 on summer weekends is familiar with the congestion that occurs at the Piscataqua River Bridge. To ease congestion on I-95 during peak travel periods, New Hampshire and Maine have agreed to allow the right shoulder of the road to be used as an open travel lane over the Piscataqua River Bridge and for several miles along each approach. This concept, known as dynamic part-time shoulder use (PTSU), can be turned on and off as traffic conditions require, using lane use signals to electronically indicate when the shoulder is open for travel. This">[link removed]">This [ <a%20href= ] informational flyer shows how the system works.

Over the past several months, New Hampshire and Maine have been installing several traffic control devices along the section of I-95 from New Hampshire's Exit 5 to Maine's Exit 3. There will also be warning signs with flashing beacons at the on-ramps approaching the system to alert merging traffic when the shoulder lane is open for travel and to use extra caution when merging into the highway. The system will be controlled by operators at the Transportation Management Centers (TMCs) in New Hampshire and Maine.

Designed primarily to reduce congestion and improve safety, the PTSU system will be used during peak congestion periods from May through October, during unplanned incidents, and as traffic conditions warrant.

Green Mountain Communications is the general contractor for this $9.4-million contract. This new system is expected to be operational this fall. body { font-size: 1em; font-family: Arial, Verdana, sans-serif; font-weight: normal; font-style: normal; color: #333333; } ________________________________________________________________________

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