in2011 quiet urban areas rotterdam
TRANSCRIPT
Sound Environment as a Global Issue
The soundscape of quiet urban parks in Rotterdam: assessment
and review of research approaches
Miriam Weber MSc, Head of Noise Department DCMR EPA
Sound Environment as a Global Issue
Quiet urban areas in Rotterdam
• EU Environmental Noise Directive • Rotterdamse Aanpak Geluidhinder • Omnibusenquête 2009 • Sustainability Programme 2011 - 2014
Sound Environment as a Global Issue
Quiet urban areas: methodology• Noise measuring (unmanned)
• Field surveys– Questionnaire– Swedish Soundscape Protocol
• Annual survey on quality of life– Questionnaire on noise annoyance and quiet
areas
Sound Environment as a Global Issue
Quiet urban areas: measuring (1)
Acoustic indicators• Lday• LA95• LA50• LA10-LA90
Sound Environment as a Global Issue
Quiet urban areas: measuring (2)
Lday LA95 LA50 LA10-LA90
dB(A) dB(A) dB(A) dB
Sidelingepark 58,5 55,0 57,9 3,7Wijkpark Oude Westen 54,1 46,8 50,0 7,2
Zuiderpark 54,7 45,9 49,8 10,1
Sound Environment as a Global Issue
Quiet urban areas: field survey (1)Questionnaire:• Use of the area (activities undertaken, frequency
of visits, weekdays, time of day, duration of stay, alone or in company of, et cetera)
• Description of (visual) environment (open question) and its pleasantness (5-point bipolar scale)
• Personal data incl gender, age, education, address, noise perception at home
Sound Environment as a Global Issue
Quiet urban areas: assessment (1)
1 2 3 4 5
Verkeersgeluid
Ventilatorengeluid
Ander mechanisch geluid
Mensgeluiden
Natuurgeluiden
Zuiderpark
Sidelingepark
Wijkpark Oude westen
Sound Environment as a Global Issue
Quiet urban areas: assessment (2)
Park Sidelingepark Wijkpark
Oude Westen
Zuiderpark
Mean 58,5 54,1 54,7 Lday STD 1,2 3,8 3,5 Mean 3,0 2,88 2,48 Evaluation acoustic
environment STD 0,74 0,83 0.87 Mean 2,17 2,12 1,63 Evaluation
pleasantness STD 0,48 0,52 0,65 Mean 6,86 7,06 7,76 Overall evaluation STD 0,84 1,3 0,76
Sound Environment as a Global Issue
Quiet urban areas: assessment (3)Evaluation Overall Visual Acoustic
environmentDuration of stay
Age Quote
Wijkpark Oude Westen
7.1 Neutral Neutral 1 hour 37 “Baken van rust in hectische bouwput.”
Sidelingepark 6.9 Good/ neutral
Neutral 0,5 hour 57 “Groen, want rustig is het niet. Het is wel lekker, maar je komt er niet voor het geluid”
Zuiderpark 7.8 Good Good/neutral 2 hour 43 “Een mix van besef van de stad en toch even buiten zijn. Echt buiten”
Sound Environment as a Global Issue
Conclusions (1): acoustic quality• Preliminary ‘noise’ levels:
• Lday <≈ 55 dB(A) • LA95 <≈ 45 dB(A) • LA50 <≈ 50 dB(A) • LA10 – LA90 <≈ 7 dB(A)
• Audible sounds: nature sounds (birds and leafs) and human sounds
• Absence of sounds from traffic (in general) and scooters
Sound Environment as a Global Issue
Conclusions (2): visual quality
• Safe appearance • Clean and well-maintained • Green, nature • Water features• Other people, however without having to
contact them
Sound Environment as a Global Issue
Conclusions (3): methodology • Field survey methods:
– Questionnaire provides holistic, analytical and narrative data covering most soundscape variables. Disadvantage is processing time.
– Adjustments of questionnaire regarding order of issues and perception of sounds
Sound Environment as a Global Issue
Follow-up of pilot: parks (1)• Introducing green
barriers or bus waiting area as noise barrier in Wijkpark Oude Westen
Sound Environment as a Global Issue
Follow-up of pilot: parks (2)• Introducing green noise barrier at seating
area in Sidelingepark
• Stakeholder involvement in maintenance
Sound Environment as a Global Issue
Follow-up of pilot: 2011 - 2013• QUADMAP: a LIFE+ funded project with
Firenze, Bilbao, and Paris
• TASTE: a project with RIVM on quiet areas, quiet sides and restorative effects in Rotterdam, Amsterdam and Arnhem
• Implementation of park specific recommendations and follow-up research
Sound Environment as a Global Issue
Thank you for your attention.
Miriam Weber MSc
Head of Noise Department DCMR EPA