Noise in drivers' cabs of motor vehicles Jurisdiction Finland Year 1976 Published in Finnish, Swedish Original/other title [Finnish] Autojen ohjaamomelu [Swedish] Bullret i bilarnas styrhytter Source Kiertokirje 4/76, Directorate of Labour Protection (Työsuojeluhallitus), Tampere, Finland, 1 Apr. 1976. 9p. Descriptors [Primary] Finland, automobiles, drivers cabs, noise, noise control, noise measurement [Secondary] directive, evaluation of results, exposure evaluation, hearing protection, limitation of exposure, noise level measurement, sound isolation Subject category Physical hazards Abstract According to Finnish legislation the noise to which professional motor vehicle drivers may be exposed must not exceed 85dB(A). This circular contains instructions for measuring noise levels in drivers' cabs (measurement conditions, location of microphone, road tests, gears used in acceleration tests, evaluation of measurement results). Measures to be taken if 85dB(A) is exceeded: repair of noisy mechanisms, soundproofing of cab, limitation of exposure according to noise level. Appendices: model test report; letter from the Finnish Ministry of Transport concerning authorisation of wearing of hearing protection by drivers of noisy vehicles. CIS No. 77-975 Database ID 27252