Traffic Noise Monitoring at Road Intersections in Urban Settlement: Case Study of Ramat Park Benin City

Abstract

Ramat Park is one of the popular Parks in Benin City which is in form of a roundabout connecting traffic from Benin City to the North and Central part of the state including Delta state. In most cases, especially on market days, there is a gridlock within the park which necessitates the uncontrolled honking of horns and emission of other vehicular noise in a bid to checkmate reckless driving. Traffic noise was measured within a period of one month using digital noise meter at 10m away from the source of the noise and about 1.2m above ground level. Two traffic models (Rahul Singh Equation and Calixto Model) were used to calculate the vehicular noise level and the values obtained correlated well with the observed values. The plots of the measured and computed noise levels gave Root Mean Squares (RMS) of 0.776 and 0.839respectively.This indicates that the pattern of the scattered plot is narrow and there is a strong relationship between both computed and measured noise. It was therefore concluded that indiscriminate and reckless activities of drivers (especially commercial bus drivers) were responsible for the noise emission while enforcement of traffic laws in the state and relocation of the motor park close to the square were recommended control measures for noise reduction.

Quantifying traffic noise pollution levels: a cross-sectional survey in South Africa

“…Interestingly, in a study conducted by Khan 1 in India, traffic noise levels ranged from 85 to 110 dB(A), with the highest measurements obtained in the afternoon (13:00 to 15:00) and evening (17:00 to 19:00). Numerous authors found similar results where road traffic noise levels were higher in commercial places 10 , 27 , 28 . In particular, these findings were reported in a study conducted in Namibia, another developing country, where noise pollution levels were higher than recommendations by WHO and National Environment Noise Regulations standard 31 .…”

“…In applying the PSI analysis, the non-dimensional equation (Equation 1 ), as discussed by Kiely 28 , was utilised. The results obtained are presented in Table 9 , while Table 10 indicates the PSI values.…”

“…The attraction of the model is that the number is a non-dimensional number 27 . According to Kiely 28 , the non-dimensional equation can be obtained as: where = pollutant standard index, C = corresponding pollutant concentration, α 1 = breakpoint PSI from one quality to another. (Equation 1 )…”

Influence of unscheduled stop and dwell time of minibus public transport on transit time in Kano Metropolis

“…Thus, longer transit time would make the service unreliable; as shorter transit time and timely arrival are deemed as key indicators of service reliability [15][16][17]. In addition to the longer transit time experienced by passengers as a result of minibus operators' unscheduled random stops associated with long dwell time; it was asserted that INDISCRIMINATE activities and reckless operation of these drivers category, generate considerable noise emission [18]. This could be hazardous to other road users as well as land-uses' occupants within the vicinity of the road.…”