If speeding is an issue in your community, lowering the speed limit is unlikely to fix the problem. You might need to use speeding countermeasures. These engineered features are designed to encourage drivers to reduce speeds below the posted or advisory speed limit. They are used in rural-to-village transition zones to help reduce speeds.
VTrans' Traffic Safety Toolbox vets speeding countermeasures to find those appropriate for Vermont. Sometimes, adjusting pavement markings is enough to slow traffic. Other times, a physically engineering feature, such as a median island, speed hump, or mumble strip, is needed. The Toolbox provides an overview of countermeasures and profiles their pros and cons, where they work, and design considerations. It includes examples of where some countermeasures have been tested or used in Vermont.