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Analysis of the impact of road noise on urban green spaces: a case study of the dendrological garden in Poznań, Poland

Ryszard Staniszewski

Ryszard Staniszewski

Department of Ecology and Environmental Protection, Poznań University of Life SciencesPoznań, Poland
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Staniszewski, Ryszard
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Konrad Podawca

Konrad Podawca

Faculty of Civil and Environmental Engineering, Department of Environmental Development and Remote Sensing, Warsaw University of Life Sciences - SGGWWarsaw, Poland
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Podawca, Konrad
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Mariusz Sojka

Mariusz Sojka

Department of Land Improvement, Environmental Development and Spatial Management, Poznań University of Life SciencesPoznań, Poland
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Sojka, Mariusz
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Emil Kacprzak

Emil Kacprzak

Department of Land Improvement, Environmental Development and Spatial Management, Poznań University of Life SciencesPoznań, Poland
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Kacprzak, Emil
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Krzysztof Karsznia

Krzysztof Karsznia

Faculty of Geodesy and Cartography, Warsaw University of TechnologyWarsaw, Poland
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Karsznia, Krzysztof
  
31 ene 2025
Analysis of the impact of road noise on urban green spaces: a case study of the dendrological garden in Poznań, Poland's Cover Image
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Publicado en línea: 31 ene 2025
Páginas: 11 - 20
Recibido: 14 may 2024
Aceptado: 11 dic 2024
DOI: https://doi.org/10.2478/mgrsd-2025-0004
Palabras clave
© 2025 Ryszard Staniszewski et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Figure 1.

Study site location with satellite and LIDAR-derived imagesSource: own elaboration based on Geoportal
Study site location with satellite and LIDAR-derived imagesSource: own elaboration based on Geoportal

Figure 2.

Changes in noise ranges for the LDWN and LN indicators for 2012 and 2017A - LDWN 2012, B - LDWN 2017, C - LN 2012, D - LN 2017Source: own compilation based on acoustic maps of Poznań
Changes in noise ranges for the LDWN and LN indicators for 2012 and 2017A - LDWN 2012, B - LDWN 2017, C - LN 2012, D - LN 2017Source: own compilation based on acoustic maps of Poznań

Figure 3.

Changes in the course of LDWN noise contours for 2012 and 2017Source: own elaboration
Changes in the course of LDWN noise contours for 2012 and 2017Source: own elaboration

Figure 4.

Changes in the course of LN noise contours for 2012 and 2017Source: own elaboration
Changes in the course of LN noise contours for 2012 and 2017Source: own elaboration

Figure 5.

Areas exposed to road noise within the limits of the study area on weekdays: A - LAeq27 May 2014 (Tuesday), B - LAeq 9 June 2020 (Tuesday).Source: own elaboration
Areas exposed to road noise within the limits of the study area on weekdays: A - LAeq27 May 2014 (Tuesday), B - LAeq 9 June 2020 (Tuesday).Source: own elaboration

Figure 6.

Areas exposed to road noise within the limits of the study area on public holidays; A - LAeq 25 May 2014 (Sunday), B - LAeq 16 May 2020 (Saturday)Source: own elabotarion
Areas exposed to road noise within the limits of the study area on public holidays; A - LAeq 25 May 2014 (Sunday), B - LAeq 16 May 2020 (Saturday)Source: own elabotarion

Changes in area of zones affected by road noise according to studies from the years 2014 and 2020 (average values)

No Feature Acoustic range [dB] Code Area [m2] WCAR Index [-]
27th May 2014 Tuesday 9th June 2020 Tuesday
1. Area exposed to road noise according to the index 40–45 A40–45 1058 10981 0.196
2. 45–50 A45–50 17143 15088 −0.041
3. 50–55 A50–55 15294 12858 −0.048
4. 55–60 A55–60 10575 6779 −0.075
5. 60–65 A60–65 5301 3744 −0.031
6. 65–70 A65–70 1338 1259 −0.002
7. Percentage of area exposed to above-normal noise LAeqD >65 PA>65 2.64% 2.48%
25th May 2014 Sunday 16th May 2020 Saturday
8. Area exposed to road noise according to the index 40–45 A40–45 9951 18237 0.163
9. 45–50 A45–50 13502 10857 −0.052
10. 50–55 A50–55 12899 10589 −0.046
11. 55–60 A55–60 9416 7219 −0.043
12. 60–65 A60–65 4053 3109 −0.019
13. 65–70 A65–70 888 698 −0.004
14. Percentage of area exposed to above-normal noise LAeqD >65 PA>65 1.75% 1.38%

Changes in areas exposed to road noise described by LN and LDWN for the years 2012 and 2017

No. Features Range [dB] Code Area [m2] Index WCAR [-]
2012 2017
Area exposed to road noise in accordance with LN 45–50 ALN45-50 1,018 12,804 0.232
50–55 ALN50-55 16,461 16,380 −0.002
55–60 ALN55-60 23,634 13,613 −0.198
60–65 ALN60-65 9,596 7,293 −0.045
65–70 ALN65-70 0 619 0.012
Area exposed to excessive noise, LN >59 A>59LN 27.8% 20.9%
Area exposed to road noise in accordance with LDWN 50–55 ALDWN50-55 0 750 0.015
55–60 ALDWN55-60 1,086 17,918 0.332
60–65 ALDWN60-65 23,903 15,974 −0.157
65–70 ALDWN65-70 18,616 10,704 −0.156
70–75 ALDWN70-75 7,104 5,387 −0.034
Area exposed to excessive noise, LDWN >68 A>68LDWN 28.1% 18.8%

Results of the LAeq analyses

Site 25 May 2014 27 May 2014 16 May 2020 9 June 2020
LAeq [dB]
1 59.2 60.1 57.3 56.8
2 59.3 61.0 56.6 60.7
3 60.0 62.2 60.1 60.4
4 56.1 57.2 54.1 54.9
5 55.7 56.4 56.2 52.3
6 55.1 55.6 52.0 54.6
7 51.9 52.3 50.5 52.2
8 52.0 52.4 53.4 50.6
9 50.6 52.9 48.4 49.4
10 52.4 52.6 47.9 52.8
11 50.0 51.2 44.2 49.3
12 49.9 50.9 47.7 47.5
13 49.1 50.3 47.0 47.2
14 47.0 49.9 44.0 46.6
15 46.1 49.1 43.8 46.5
16 45.2 48.7 43.7 45.3
17 45.7 48.2 43.8 44.9
18 44.5 46.0 43.2 44.1
19 43.3 45.6 43.1 43.2
20 42.9 44.6 42.0 40.7
A 66.1 67.3 67.3 72.4
B 71.1 71.3 71.1 71.7
C 72.9 72.6 72.4 74.1
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