International Journal of Engineering and Information Systems (IJEAIS)   Year: 2024 | Volume: 8 | Issue: 5 | Page No.: 10-16 Smart Phone Application for Tractor Noise Levels Assessment at Different Tillage Operations Download PDF Dandison M. Wali, Reuben N. Okparanma, Silas O. Nkakini Abstract: The high levels of noise from tractor during tillage operation in the farm has become an environmental concern because of the potential health impacts of the noise on personnel. This study assessed noise levels from tractor on land area of 160m x 38m (6080 m2) divided into three blocks of 9 subplots marked 50m x 2m along with 1m between each plot. A space of 2m between each block and 1m at the sides of the outer blocks was also considered. The tractor was adjusted to forward speeds of 5, 7 and 9km/h, during ploughing, harrowing, and ridging operations. The results showed increase in noise levels of 71.30 dB(A), 79.00 dB(A), and 81.70 dB(A) at the various speeds. The study revealed noise levels at a setback distance of 5m, 10m, and 15m representing 71.30 dB, 70.9 dB, and 54.00 dB. The result showed impact of noise to personnel in the farm at setback distance of 5m and less harmful at 15m setback of NESREA recommendation of 2007 and WHO's permissible limit. The result shows statistically difference at 95% confidence level during ploughing, harrowing and ridging operations. The noise levels decrease as the setback distances increases with high coefficient of determination (r2) ranged from 0.7673 to 0.9423 for ploughing, harrowing, and ridging operation. The study are useful reference and guideline that may assist policy makers, regulatory bodies, local council and even tractor operators to adopt appropriate measures to ensure health of personnel on the farm.