Highway Noise Protocol

The Highway Noise Protocol is a standardized method for predicting and assessing traffic noise impacts along highways. It uses consistent procedures and data so transportation agencies can reliably estimate noise levels, helping them plan for noise mitigation like barriers or soundproofing. By applying this protocol, planners can evaluate how different traffic volumes, vehicle types, and roadway designs affect nearby communities, ensuring that noise concerns are addressed systematically and transparently during project development. Overall, it enhances the ability to manage highway noise effectively and make informed decisions to protect residents and environments.