26
27 1.6 Sound analysis
Analysis: context
they didn’t know existed before coming to work there. When asked about their first experience in the City, they remembered how confused they were trying to find it. They naturally moved the conversation towards the tunnel and how they found it interesting and even slightly romantic at times. Each of the interview lasted for around 30 minutes and focused on grand- and mini-tours regarding the subjects’ transportation means, atmosphere, safety and visibility through the City. Regarding the procedure followed, we did not disclose what line of study we are in until the last part of the interviews, in order to not limit the discussion to the topic of lighting. Eventually, the two conversations switched more towards lighting problems and opportunities within the City. In addition, apart from interviews conducted inside on The Railway City with the two user groups, people passing by on Enghavevej have also been interviewed, in order to gather insight into whether people are aware of the City beyond the tunnel. The interviewer was standing on the pedestrian walk, across from the tunnel entrance and approached pedestrians and asked four questions (‘Where do you think this tunnel leads to?’, ‘How do you feel about this entrance?’, ‘Have you even noticed the Jernbanebyen sign at the top of the biking ramp?’, ‘Where are you walking to and from?’). A total of 7 people has been sharing their thoughts on this and it was concluded that the tunnel goes “unnoticed”, it is perceived as “sketchy” and “poorly signaled”. Only 2 out of the 7 people interviewed have been through the tunnel before, although living the area.
Typical sound events in the area originates from passing cars and trains (fig. 1.13). As the surrounding roads are heavily trafficked, the noise from cars is static, and trains pass in intervals making the noise cyclic. Worth noting is that train horns can reach >100 dB (railroads.dot.gov) The noise from Vasbygade and parts of Ingerslevsgade reach levels in excess of 75 dB and noise from trains should not exceed 69 dB (Miljøstyrelsen, 2007). When sound levels increase 10 dB it is equivalent to a 10-fold increase in sound intensity. This will feel like a doubling in loudness (IEEE Standard 100, 2000). Based on our own observations, the noise inside the underpass can be intense when a train is passing by – this is further enhanced by the echo chamber effect. Train noise is in general not as bothersome as road noise, due to the nonconstant noise (Miljøstyrelsen, 2007). In addition to traffic noise, there is a lot of different sounds and noise from all the workshop and the Metro Facilitation Center.
Signaturforklaring
larger roads
larger railways
Større jernbaner, 1,5m
larger railways & roads
Signaturforklaring Veje i by, 1,5m
>75 dB75 dB Signaturforklaring Signaturforklaring over Veje i by, 1,5m Større jernbaner, 1,5m © Styrelsen for Dataforsyning og Effektivisering © Styrelsen for Dataforsyning og Effektivisering © Styrelsen for Dataforsyning og Effektivisering 70-75 dBdB 70-75 Fig. 1.13: Noise map from 2017. Mapping of noise load of people, as well as the ethnographic research done within 65-70 dB 65-70dB originating from the largest railways and roads, measured The Railway City, showed that there is a strong sense of 60-65 dB DDO®land). Det societal er kun tilladt at tage kopier eller udprinte ortofotos (DDO®land) til dit eget private brug indenfor husstanden, 60-65 dB at 1,5 meters. Average noise load marked with colour codes. disconnection created by the alienation of the 55-60 dB COWI. Øvrig kommerciel anvendelse er ikke tilladt og vil kunne retsforfølges. 55-60 dB (source: Miljøstyrelsen) City community from the surrounding neighborhoods,
ektivisering SUMMARY: Unobtrusive observations on the movement
Ortofoto fra COWI
Ortofoto fra COWI
over 75 dB 70-75 dB Ortofoto fra COWI 65-70dB
over 75 dB 65-70dB
COWI ophavsret COWI har den fulde ophavsret til Sommer ortofotos (DDO®land). Det er kun tilladt at tage COWI kopier har den ellerfulde udprinte ophavsret ortofotos til Sommer (DDO®land) ortofotos til dit (DDO®land). eget private brug Det er indenfor kun tilladt husstanden, at tage k har den fulde 60-65 dB til Sommer ortofotos (DDO®land). Det er kun tilladt at tage kopier eller udprinte ortofotos (DDO®land) til dit eget private brug indenfor husstanden, eller hvis dintilladt instutuion brugsrettigheder hos COWI. Øvrig kommerciel anvendelse er ikke tilladt og vil kunne retsforfølges. eller hvis din instutuion har købt brugsrettigheder hos COWI. Øvrig kommerciel anvendelse eller hvis er ikke dintilladt instutuion og vilhar kunne købtretsforfølges. brugsrettigheder hos COWI. Øvrig kommerciel anvendelse er ikke og vilhar kunne 55-60 dBkøbtretsforfølges. 55-60 dB
•
fueled by the confusing wayfinding, lack of visual interest, storytelling and visibility towards the tunnel, respectively the City.
Creating with light
SUMMARY: The area is subject to significant am ount of traffick noise, both static and cyclic. The area is secluded from the rest of the city and the soundscape will differ from most neighbourhoods in the city due to the large transportational infrastructure, both as an outer barrier and as a part of the interior of the area.
over 75 dB 70-75 dB 65-70dB 60-65 dB 55-60 dB over 75 dB 70-75 dB 65-70dB 60-65 dB 55-60 dB
