EVALUATION OF VIBROACOUSTIC COMFORT IN MEANS OF PUBLIC TRANSPORT IN POZNAN ON THE BASIS OF SURVEY RESEARCH

摘要

This article presents results of survey research carried out among passengers of Poznan Municipal Transport Company. Poznan is one of the biggest cities in Poland. It covers area of 262 km~2 and is inhabited by 552,000 people. Municipal road infrastructure of Poznan includes: 1039 km of roadways, 105 km of bicycle routes, 125 km of railway network, additionally the city has 20 tram lines and 79 bus lines. Questions in the survey refer to evaluation of vibroacoustic climate in trams and buses while riding by passengers. The survey includes questions referring to pointing places in the vehicle of the highest and lowest level of noise and vibrations, phase of vehicle movement during which the highest level of vibrations and noise is generated. Additionally respondents made vibroacoustic evaluation of particular types of buses and trams riding in Poznan and indicated factors which they think have influence on comfort of the ride in means of transport. The survey research was completed with results of noise measurements registered inside selected types of buses and trams used in Poznan during a ride and at a stop.