Green Voice environmentalists and traffic police campaign at Bijoy Sarani held on Wednesday to raise awareness of noise pollution. The initiative aims to phase out hydraulic horns as part of a Department of Environment programme to create a quieter capital.

Green Voice environmentalists and traffic police campaign at Bijoy Sarani held on Wednesday to raise awareness of noise pollution. The initiative aims to phase out hydraulic horns as part of a Department of Environment programme to create a quieter capital.