Study of the Acoustic Perceptibility of Vehicles Moving with a Constant Speed

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The paper presents the results of an experiment on the assessment of subjective indicators of acoustic perceptibility by pedestrians (experts) of a vehicle approaching at a constant speed (TS) and some conclusions. Subjective indicators of perceptibility were defined as the distance between the vehicle and the expert, at the moment when the expert heard (recorded) the sound of an approaching car, as well as the time of the car's approach to the expert at that moment. Subjective indicators of perceptibility are compared with the objective parameters of car noise measured by the method of UN Regulation No. 138 — the sound pressure level, its frequency response, as well as the sound level. The study is motivated by the problem of traffic safety of electrified vehicles with low noise, which include, in particular, electric cars, electric scooters and electric scooters. This article publishes the first results of a research paper devoted to the problem of increasing the perceptibility of low-noise vehicles for pedestrians without damaging the acoustic ecology of cities and suburbs.

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作者简介

A. Subbotkin

A. M. Prokhorov General Physics Institute of the Russian Academy of Sciences; Research Institute of Building Physics of the Russian Academy of Architecture and Construction Sciences; Kar Systems LLC

编辑信件的主要联系方式.
Email: subov-an@yandex.ru
俄罗斯联邦, Moscow; Moscow; Moscow

G. Kuznetsov

A.M. Prokhorov General Physics Institute of the Russian Academy of Sciences

Email: subov-an@yandex.ru
俄罗斯联邦, Moscow

E. Talachev

Kar Systems LLC

Email: subov-an@yandex.ru
俄罗斯联邦, Moscow

G. Romanenko

Devesoft Rus LLC

Email: subov-an@yandex.ru
俄罗斯联邦, Moscow

A. Tyurin

Research Institute of Building Physics of the Russian Academy of Architecture and Construction Sciences; Kar Systems LLC

Email: subov-an@yandex.ru
俄罗斯联邦, Moscow; Moscow

参考

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1. JATS XML
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2. Fig. 1. Diagram of the measuring platform

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3. Fig. 2. Diagram of a part of the measuring area

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4. Fig. 3. The results of measuring the fixation time for 27 Tesla Model 3 passes at a constant speed of 40 km/h

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5. Fig. 4. Median values of the results of the assessment by all experts of (a) — the time and (b) — distance of the entrance for vehicles without the AVAS system enabled

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6. Fig. 5. Measurement results according to the method [2] (a) — the maximum sound level and (b) — the maximum sound pressure level

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7. Fig. 6. Measurement results according to the method [2] of the frequency characteristics of the maximum values of the sound pressure level in 1/3 octave bands for speeds (a) — 10 and (b) — 20 km/h

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8. Fig. 7. Median values of the results of the assessment by all experts of the arrival time for electrified vehicles with the AVAS system running in comparison with the values for the switched-off AVAS system

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9. Fig. 8. Measurement results according to the method [2] of the maximum sound level for electrified vehicles with the AVAS system running in comparison with the values for the switched-off AVAS system

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