Existing Noise Level at Railway Stations in Malaysia Shahiron Shahidan, Mohamad Zulkhairi Md Maarof, Nurul Izzati Raihan Ramzi Hannan and Noorwirdawati Ali MATEC Web Conf., 103 (2017) 09012 Published online: 05 April 2017 DOI: 10.1051/matecconf/201710309012