The study aims to produce a loud sound level studies in the area of passenger transport station of Phitsanulok province, and compared to the standard the World Health Organization (WHO) to make a loud sound level measuring 3-point measurement is a passenger transport station. The entrance station, transport of passengers and freight station, passenger exit. By measuring the sound levels (Leq) 8 hours 8.30-16.30 p.m. time period from September – November: 2558, collected samples in each sample point 4 times a month in a study using a sound level meter-(TES 1375), which found that the area of the ...Nikhon send passenger levels, maximum average volume in the range of-74.5 76.5 DB (ACE) is a secondary entrance bus station with a 72.4-average 74.6 DB (El) and exit bus passengers with an average in the range of-71.6 DB (El) 74.0 respectively and compared the three benchmarks, it was found that the area measuring loud sound levels are average, not exceed the World Health Organization defines the standard 85 DB a.
การแปล กรุณารอสักครู่..
