Research on Motor Transport Produced Noise on Gravel and Asphalt Roads

Abstract

Vehicles in motion on roads are the main source of noise in the environment. Th e noise in a car is created by structural noises from car construction, originated from vibrations in an engine, cabin, silencer, wheels and tires. Traffi c noise fl ow depends on its intensity, motion speed, fl ow composition and extent, quality of the road pavement and build-up of the area along the road. Th is paper contains research on motor transport produced noise levels on roads of regional signifi cance with gravel and asphalt pavement in Molėtai district. Th e level of motor transport produced noise was measured in wintertime and summertime at the chosen typical locations considering the nature of the asphalt and gravel road pavement and diff erent landscape morphology forests, topography roughness, open area, upslope, downslope, etc. Also, research of noise level dependence on car speed was performed from 50 km/h to 70 km/h. It was determined during the study that noise level produced by a car moving at a speed of 50 km/h on a road with gravel pavement is higher by 4 dBA than that on a road with asphalt pavement. Upon moving away from the noise source by 50 m, the level of noise decreases by 12 dBA in woodland open areas and by 16 dBA. As car speed increases from 40 km/h to 50 km/h in wintertime, the level of noise rises by 2 dBA. In summertime, as car speed increases from 50 km/h to 70 km/h, the noise level rises by 5 dBA. Th ese diff erences are due to the presence of ice and snow on the road in winter. Noise depends on physical properties of tires, type of pavement, car vibrations and in particular on pavement roughness.

Quality Approach to the Sustainability of Public Transport

“…utility and industrial territories. Therefore, recent citizens' complains about the level of noise have been constantly increasing (Baltrenas et al 2010;Grazuleviciené, Bendokiené 2009;Vaisis, Janusevicius 2009;Leipus et al 2010;Paulauskas, Klimas 2011).…”

Evaluation of Bypass Influence on Reducing Air Polution in Vilnius City / Aplinkkelių Įtakos Oro Užterštumo Mažinimui Vertinimas Vilniaus Miesto Pavyzdžiu / Оценка Влияния Объездных Дорог На Уменьшение Загрязнения Окружающей Среды На Примере Г. Вильнюса

“…Long-term research points to the main means of improving traffic safety and environment (Quality Indicators for… 1998; Breton et al 2002;Classidy, Bertini 1999;Cremer 1995;Daganzo 1994;Daganzo 1995a-c;Diakaki et al 2000;Di Febbraro et al 2001;Ho, Ioannou 1996;Chien et al 1997;Seethaler 1999;Sommer et al 1999;Pečeliūnas, Prentkovskis, O. 2006;Sokolovskij et al 2007;Kinderytė-Poškienė, Sokolovskij 2008;Kapski et al 2008;Junevičius, Bogdevičius 2007, 2009; Vansauskas, Bogdevičius 2009;Baltrėnas, Kazlauskienė 2009;Baltrėnas et al 2008;Čygas et al 2009;Jakimavičius, Burinskienė 2009Pellegrino 2009;Laurinavičius et al 2010;Al-Mofleh et al 2010;Leipus et al 2010).…”

The Improvement Conception of Drivers Training and Examination System in Lithuania / Vairuotojų Rengimo Ir Egzaminavimo Sistemos Lietuvoje Tobulinimo Koncepcija / Концепция Совершенствования Системы Подготовки И Аттестации Водителей В Литве

“…A considerable harm is caused by traffic accidents when humans perish and are injured, vehicles and road constructions are damaged, the environment is polluted by spilled fuels, oils and transported materials (Baltrenas, Kazlauskiené 2009;Baltrenas et al 2008;Baltrenas, Puzinas 2009;Peceliünas, Prentkovskis 2006;Vaisis, Januáevicius 2009;Prentkovskis et al 2009aPrentkovskis et al , 2010aPrentkovskis et al , 2010bSapragonas, Darguzis 2011;Rukuiza, Eidukynas 2009;Cygas et al 2009;Leipus et al 2010;Pellegrino 2009;Antov et al 2009;Cerniauskas et al 2010;Vitkùnas, Meidute 2011;Jagniatinskis et al 2011).…”