Evaluation of Daily Vehicular Traffic Flows and Noise Levels at Major Junctions in Port Harcourt Metropolis, Nigeria
Itaa C. M.
Centre for Occupational Health Safety and Environment (COHSE), University of Port Harcourt, Nigeria.
Ugwoha E.
Centre for Occupational Health Safety and Environment (COHSE), University of Port Harcourt, Nigeria and Department of Civil and Environmental Engineering, University of Port Harcourt, Nigeria.
Yorkor B. *
Department of Civil and Environmental Engineering, University of Port Harcourt, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
This study evaluated vehicular traffic flows and associated traffic noise levels at major junctions in Port Harcourt metropolis. Traffic volume was determined using visual traffic count method. Noise level was determined using an Extech digital sound level meter. Data were statistically analyzed and noise descriptors determined. Average daily traffic flows ranged from 149 to 4224. Average daily total traffic volume was minimum at Eliozu junction and maximum Eleme junction. Traffic noise varied proportionally with traffic flow. The result showed that Average noise levels varied from 70.5dB(A) to 95.9dB(A). The result showed that L10 mean values were 89.0, 90.2 91.7, 94.7 and 97.2dB(A) for Eliozu, Choba, Runuokuta, Runuokoro and Eleme junctions respectively; L50 mean values were 80.5, 81.2, 83.8, 85.2 and 89.3dB(A) for Eliozu, Choba, Runuokuta, Runuokoro and Eleme junctions respectively; L90 mean values were 69.5, 70.1, 70.4, 72.0 and 78.2dB(A) for Choba, Eliozu, Runuokuta, Runuokoro and Eleme junctions respectively. Noise climate (NC) aggregated mean values were 18.9, 19.0, 20.7, 21.3 and 22.7 for Eliozu, Eleme, Choba, Runuokuta and Runuokoro junctions respectively; Leq aggregated mean values were 86.5, 88.3, 91.4, 93.8 and 95.3dB(A) for Eliozu, Choba, Runuokuta, Runuokoro and Eleme junctions respectively; noise pollution index (Lnp) aggregated mean values were 105.4, 109.0, 113.0, 114.3 and 116.6dB(A) for Eliozu, Choba, Runuokuta, Eleme and Runuokoro junctions respectively; traffic noise index (TNI) aggregated mean values were 115.7, 122.3, 124.2, 125.6 and 132.8dB(A) for Eliozu, Choba, Runuokuta, Eleme and Runuokoro junctions respectively. The study showed evidences of high traffic noise pollution at major junctions in Port Harcourt metropolis, which may adversely affect public health and therefore requires intervention by all stakeholgers, including decision makers.
Keywords: Heavy and light vehicles, noise levels, noise climate, traffic noise index, noise pollution index, noise pollution levels, health effects
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References
Quartieri J, Mastorakis NE, Iannone G, Guarnaccia C, D’Ambrosio S, Troisi A, Lenza TLL. A Review of Traffic Noise Predictive Models. Recent advances in applied and theoretical mechanics; 2009. Available:http://www.wseas.org/mastorakis
Cirianni F, Leonardi G. Artificial Neural Network for Traffic Noise Modelling. ARPN Journal of Engineering and Applied Sciences. 2015;22(10):10413-10419.
Ugbebor JN, Raphael, Yorkor B. Measurement and Evaluation of Road Traffic Noise in Three Selected Junctions in Port Harcourt Metropolitan, Nigeria. Journal of Environmental Science, Computer Science and Engineering & Technology. 2015;4(2):1-10.
Golmohammadi R, Abbaspour M, Nassiri P, Mahjub H. A Compact Model for Predicting Road Traffic Noise. Iran. J. Environ. Health. Sci. Eng. 2009;6(3):181-186.
Kumar KVD, Srinivas N. Study of Noise Levels at Traffic Density Areas in an Urban Environment. International Journal of Engineering Research and Technology. 2014;3(11):783-786.
Toronto Public Health; Health Effects of Noise. Toronto: City of Toronto; 2000. Accessed 25th September, 2022.
Calixto A, Diniz FB, Zannin P. Effects of traffic composition on road traffic noise in an urban setting. Cities. 2003;20(1):23- 29.
Cowan JP. Educating the public on environmental and recreational noise exposure. In Handbook of Environmental Acoustics. McGraw-Hill Book Company New York. 1994;14-20.
Evans GW, Hygge S. Noise and cognitive performance in children and adults. In: Luxon LM, Prasher D, eds. Noise and its effects. Chichester, John Wiley. 2007;549–566.
WHO. Burden of disease from environmental noise: Quantification of healthy life years lost in Europe. A publication of World Health Organization Regional Office for Europe; 2011.
Omubo-Pepple V, Briggs-Kamara MA, Tamunobereton-ari I. Noise Pollution in Port Harcourt Metropolis: Sources, Effects, and Control. Pacific Journal of Science and Technology. 2010;11(2):592-600.
Okeke PN, George DMC. Evaluation of Ambient Noise Levels in Port Harcourt Metropolis, South-South, Nigeria. Journal of Environmental Science, Toxicology and Food Technology. 2015;9(7):54-60.
Emenike GC, Sampson AP. Noise Levels and Quality of Livelihoods in Residential Neighbourhoods of Port Harcourt Metropolis, Nigeria. European Journal of Earth and Environment. 2017;4(1):19-28.
Fred-Nwagwu WF, Nwaerema P, Dangana K. Spatio-Temporal Analysis of Vehicular Noise Pollution Between Days of the Week and Weekend in Port Harcourt Metropolis of Rivers State, Nigeria. J. Mater. Environ. Sci. 2022;13(3):301-309.
Iwuoha CP, Avwiri E. Evaluation of Noise Pollution on Health in Low and High Density Residential Area of Port Harcourt Metropolis. International Journal of Innovative Education Research. 2022;10(2):91-98.
Ugbebor JN, Yorkor B, Nwogu JN. Evaluation of Noise Levels in Oil Mill Market and Its Environs, Port Harcourt, Nigeria. British Journal of Applied Science and Technology. 2017;21(1):1-11.
Leduc G. Road Traffic Data: Collection Methods and Applications. Working Papers on Energy, Transport and Climate Change N.1, JRC Technical Notes; 2008.
NSW. New South Wales Industrial Noise Policy Published by Environment Protection Authority. Goulburn Street Sydney South NSW. 2000;1232:59- 61.
Davis, ML and Cornwell DA. Introduction to Environmental Engineering. McGraw-Hill International Edition, 4th edition; 2008.
Sincero AP, Sincero GA. Environmental Engineering; A Design Approach, E. E. Ed. Prentice-Hall of India Private Limited, New Delhi; 2011.
Kiely, G. Environmental engineering. McGraw-Hill Publishing Company, England; 1997.
Nwaogazie Probability and Statistics for Science and Engineering Practice. University of Port Harcourt Press, Nigeria; 2008.
Swain BK, Shreerup G. Integration and comparison of assessment and modelling of road traffic noise in Baripada town, India, International Journal of Energy and Environment. 2013;4(2):303-310.
Selman HM. Noise Pollution in Urban Environments: a Study in Al-Samawah City, Al-Muthanna, Iraq. Elixir Pollution. 2015;81:31551-31558.
Ramakrishna V, Saigiri N, Chakribabu K, Sultana S, Dhanunjay M. IOSR Journal of Engineering. 2021;11(1):04-13.
Kundu S, Mondal NK, Mishra D. Prediction of Road Traffic Noise by CRTN Model in a Sub-Urban Town of India. The Global Environmental Engineers. 2021;8(1):1- 13. DOI: https://doi.org/10.15377/2410-3624.2021.08.1
Fiberesima DWVO. Noise mapping around the host communities of the University of Port Harcourt, Nigeria. Art Human Open Acc. J. 2020;4(2):43‒48. DOI: 10.15406/ahoaj.2020.04.00151
Ajoku BC, Amadi-Wali O. Spatio-temporal Analysis of Noise Levels across Hotspot Areas in Port Harcourt Metropolis, Rivers State, Nigeria. Journal of Geography, Environment and Earth Science International. 2020;24(5):30-40. Article no. JGEESI.58081.
WHO. Environmental Noise Guidelines for the European Region. WHO Regional Office for Europe UN City, Denmark. 2018;19-21.
Hunashal RB, Patil YB. Assessment of noise pollution indices in the city of Kolhapur, India. Procedia - Social and Behavioral Sciences. 2012;37:448–457.
Chiedu, SN. Agbalagba, EO and Avwiri, GO. Noise Pollution Assessment of Selected Junctions in Warri Metropolis and its Environs. International Journal of Innovative Environmental Studies Research. 2021;9(4):27-39.
Kumar KVD, Srinivas N. Study of Noise Levels at Traffic Density Areas in an Urban Environment. International Journal of Engineering Research and Technology. 2014;3(11):783-786.
Shalini K, Kumar B. Study of Road Traffic Noise Sound Pressure Levels in Varanasi City, India. International Journal of Applied Engineering Research. 2018;13(8):6248-6252.
Nassiri P, Karimi E, Monazzam MR, Abbaspour M, Taghavi L. Analytical comparison of traffic noise indices—A case study in District 14 of Tehran City. Journal of Low Frequency Noise, Vibration and Active Control. 2016;35(3):221–229.
Ihemeje J, Onyelowe KC. State-of-the-art review on the assessment and modelling of traffic noise intensity on roadside dwellers: The Port Harcourt, Nigeria case. Cleaner Engineering and Technology. 2021;5(100328):1-13 Available:https://doi.org/10.1016/j.clet.2021.100328