Intersection of Central Avenue / Groton Harvard Road

Implementation of a 4-Way Stop

Central Avenue at Groton Harvard Road

The Town of Ayer converted the intersection of Central Avenue and Groton Harvard Road to a 4-Way Stop on July 26th. More details are provided below:

Signage and roadway markings were added in accordance with the attached plan. In brief, stop control was added to the Central Avenue approaches, including stop ahead warnings.

Why: Several Factors, some are:

• High Crash Rate: 81 Crashes since 2002, 19 with possible/minor injuries, near misses not recorded but known
• Intersection Improvement Study Completed
  • Crash Rate indicates two-way stop is no longer adequate for the intersection
  • Skewed Intersection Geometry
  • Poor Level of Service on Groton Harvard Road
  • Interim Improvement of 4-Way Stop Recommended

Please find attached

• a presentation given to the Select Board in April 2023 
• plan detailing the layout of markings and signage