(1.) This writ application was moved by the petitioners for protection of their own rights and also in public interest being aggrieved by the nuisance and noise pollution which are being created in the impunity by the transport operators by indiscriminate installation and use of electric and artificially generated air horns which cause unduly rash, shrill, loud and alarming noise. In the writ petition, the petitioners prayed for a writ in the nature of Mandamus commanding the Respondents to enforce the provisions of R.114 of the Bengal Motor Vehicles Rules, 1940 and to enforce the restrictions against the use of such electric and other loud and shrill horns including air horns by operators of the transport vehicles. The case of the petitioners is that State of West Bengal is a thickly populated area and the density of population is one of the highest in India. It was further alleged that the prevailing noise level in this State particularly in the Calcutta Metropolitan Area is far in excess of the permissible limit and it is no longer in dispute that such excessive noise level poses positive danger to the residents of the respective locality. It also poses serious threat to the health of the residents apart from causing serious inconvenience to the weak, infirm and indisposed people. It was also alleged that even normal people are increasingly finding it difficult to enjoy their so essential in their lives or to carry on their works whatever be their nature. The petitioners" further case is that one most important factor contributing to the noise nuisance, particularly in the case of those who have their residences in the Calcutta Metropolitan Area or any other urban areas, is the blowing of loud and shrill horns by operators of transport vehicles. The said loud and shrill horn either electric horn or air horn mechanically generated and stored in an air tank in most of the transport vehicles. It was further alleged by the petitioners that sudden blowing of such horns by transport vehicles produces a rude shock in the human system and is acknowledged to have serious effects on various aspects of human life including blood pressure, mental and nervous system. It also does not permit effective concentration to be provided because of sudden disruption caused by such loud and shrill horns. The transport operators particularly the goods transport vehicles operate about 18 hours a day with such type of horns.
(2.) Mr. Saktinath Mukherjee, learned Advocate appearing on behalf of the petitioners in support of the contentions of the petitioners, referred to the provisions of R.114 of the Bengal Motor Vehicles Rules, 1940. The said Rule is as follows :-
(3.) It is a matter of common knowledge that almost all the transport vehicles use air horn and electric horn instead of using bulb horn as provided in R.114(d) of the Bengal Motor Vehicles Rules, 1940 and such unnecessary and excessive use of such horn creates annoyance to the people. It was stated in paragraph 15 of the petition that recently a research was conducted jointly by Basu Bijnan Mandir and the Presidency College, Calcutta about noise pollution in the city of Calcutta and the suburbs. On such analysis it is found that the atmosphere and the environment is very much polluted from indiscriminating noise emitted from different quarters and on research it was found that persons who are staying near the Air Port, are becoming victim of various ailments. Such persons even become victim of mental disease. On such research it was also found that workers in various factories even become deaf and hard of hearing. It was further found on such research that as a result of this excessive noise pollution, people suffer from loss of appetite, depression, mental restlessness and insomnia. People also suffer from complain of excessive blood pressure and heart trouble. It is not necessary to go into the question about direct effect of such noise pollution because of indiscriminate and illegal use of such electric and air horn as it is an admitted position that the same is injurious to health and amongst different causes of environmental pollution, sound pollution is one, which is a matter of grave concern.