The document outlines plans to improve acoustic quality in urban agglomerations through coordinated action between municipalities. It discusses (1) contacting other municipalities and promoting technical acoustic improvements, (2) establishing an inventory of possible actions, and (3) having various municipal departments involved in improvements related to urban planning, mobility management, road maintenance, economic activities, and more. It then summarizes specific municipal actions that can be taken to regulate mobility, improve roads and infrastructure, increase awareness, and implement strategic planning measures to reduce noise pollution in urban areas.