Tystare vägar: En studie av tekniska åtgärder för att minska buller från vägtrafik

ABSTRACT This report investigates technical solutions for reducing road traffic noise under Swedish conditions. Traffic noise is one of the most widespread environmental problems in urban areas, affecting millions of people and contributing to sleep disturbances, cardiovascular diseases, and reduced quality of life. The aim of this study is to evaluate the efficiency, durability, and adaptability of established noise reduction measures such as low-noise asphalt, noise barriers, and vegetation-based solutions. The research is based on a qualitative literature review combined with two case studies: Uppsala Municipality’s Noise Action Plan and the Swedish Transport Administration’s Action Programme for Road Traffic Noise 2024–2028. The results show that low-noise asphalt can reduce sound levels by approximately 3–5 dB(A), although its long-term performance decreases in cold climates due to clogging and wear. Noise barriers provide the most consistent reduction (5–10 dB(A)) but require space and maintenance. Vegetation-based solutions offer limited acoustic performance (2–5 dB(A)) but significant environmental and aesthetic benefits. The study concludes that combining technical and nature-based measures, adapted to local climate and traffic conditions, is the most effective strategy for long-term noise reduction. Integrated noise management that links engineering, urban planning, and environmental considerations is essential for achieving sustainable and quieter urban development in Sweden.