Normative Framework of Noise Mapping in India: Strategies, Implications and Challenges Ahead

The paper presents a retrospective and prospective view of noise mapping strategy followed across the globe as a diagnostic tool for controlling the noise pollution in urban cities. The concept of noise mapping is primitive in India and thus developing the noise maps is really a great challenge for big metropolitan cities of India. The paper discusses the benefits associated, input parameters required, methodology, sampling and interpolation techniques used, noise control action plans and challenges ahead for the development of strategic noise maps. The pros and cons associated with noise mapping and validity of principal traffic noise models in India are presented. Also, various technical aspects pertaining to noise mapping are clarified in Indian perspectives based on the standard operating procedures used internationally. This paper recommends a national policy framework of noise mapping and control for Self-Reliant India (Aatmanirbhar Bharat) and shall serve as a guiding document to all the stake holders for noise mapping of the larger parts of the country.