Den gode by for alle liveable cities

Transkript

1 With AARHUS Den gode by for alle liveable cities Stadsarkitekt Stephen Willacy 26 oktober 2015

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3 Liveable cities

4 Aarhus 2030?

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9 Better interaction between roads, buildings, and landscape

10 2 main principles for city development new towns & city regeneration on brown field sites Lisbjerg Neye Harlev Malling

11 Atlanta Barcelona compared The greater metropolitan area of Atlanta supports a population of about 2.5 million people and spans 137 kilometers between its two furthest points. By 1990, this sprawl had established a density of six people per hectare. Now, compare Atlanta to a city with a similar level of population, Barcelona. The furthest distance of built up area in Barcelona is 97 kilometers with a density of 176 people per hectare (World Development Report 2009, 211) In order for Atlanta to accommodate as many people as Barcelona s public transit system, Atlanta would need to build an additional 3,400 kilometers of track and about 2,800 new metro stations. Average density of Barcelona metropolitan area is 28 times greater than Atlanta's Data Sources: Atlanta Aris data base and Barcelona Regional Planning Office Kilde: Transit and Density af Alain Bertaud and Harry W. Richardson

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13 Source: Newman & Kenworthy 1989 Atlas Environment du Monde Diplomatique 2007

14 Byfortætning og arealanvendelse Med udsigt til 9 mia. mennesker på jorden i 2050 har vi behov for at indskrænke vores arealmæssige fodaftryk og genskabe natur og landbrugsarealer Eksempel på fodaftryk pr. beboer Skjoldhøjparken Ca. 50 m 2 pr. person Felt 5.2 A C, De Bynære Havnearealer Ca. 4,6 m 2 pr. person Boligernes arealmæssige fodaftryk reduceres væsentligt ved byfortætning. Mindre arealaftryk giver mindre pres på natur, biodiversitet, grundvandsressourcer og landbrugsarealer Skjoldhøjparken, Aarhus Forudsætninger: Et gennemsnitligt parcelhus har ca. 150 m 2 fodaftryk og 3 beboer De bynære havnearealer, Felt 5.2 A C Forudsætninger: Bebyggelsens fodaftryk: m 2 Bebyggelsesprocent: Samlet etm 2 : etm 2 Forudsat etm 2 lejlighed pr. person: 40 etm 2

15 Enrique Penalosa mayor of Bogota, Colombia from 1998 to GOVERNANCE

16 It is about integrating the values of society. Cities do that best. Think about it: in cities, your most valuable resources are roads because they are literally the paths of connection between each of us. How do you construct roads in a way to maximize i the values of society? How do you best distribute this resource?

17 We improved public areas around the stations. We were mindful that the trip starts when you leave your home. It starts when you start walking. It has to be nice. And it has to work, with benches, lights, landscaping and by providing the fastest way to get from here to there.

18 And in my mind, the most advanced cities are the ones with the best quality sidewalks.

19 Jan Gehl asks, "What makes a good city?" He says that good cities are the ones where people want to be outside, where people want to be in the public realm. It doesn t matter if a place is hot or cold, humans have a need to be with each other, to meet and see and interact with other people. Car free days

20 It s a collective learning experience Erik Britton Eik Bitt i d E i P l t ll ff th fi t Erik Britton convinced Enrique Penalosa to pull off the first big city car free day in Bogota in Now more than a 1000 Cities have followed suite.

21 ARKITEKTURPOLITIK DE 5 TEMAER: Borgerinddragelse åben processer, dialog, helhedstænkning og tværfagligt samarbejde Ny bæredygtig byudvikling mod en tættere og mere bæredygtig by Arkitektur Aarhus som en Internationalt kendt arkitekturby Effektiv udnyttelse af ressourcerne energieffektivisering i det eksisterende byggeri Infrastruktur og tilgængelighed g g g g bedre samspil mellem veje, bygninger, byrum og landskab

22 ARKITEKTURPOLITIK DE 5 TEMAER: Borgerinddragelse åben processer, dialog, helhedstænkning og tværfagligt samarbejde Ny bæredygtig byudvikling mod en tættere og mere bæredygtig by Arkitektur Aarhus som en Internationalt kendt arkitekturby Effektiv udnyttelse af ressourcerne energieffektivisering i det eksisterende byggeri Infrastruktur og tilgængelighed g g g g bedre samspil mellem veje, bygninger, byrum og landskab

23 INFRASTRUKTUR: Bedre samspil mellem veje, bygninger, byrum og landskab FREMTIDENS AARHUS V/Stadsarkitekt Gøsta Knudsen

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38 Byrum ramme for det gode liv

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40 TRANSFORMATION

41 BYLIV

42 BYRUM

43 BYGNING

44 SHARED SPACE

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47 REINVENTING THE STREET GEHL ARCHITECTS

48 CONNECTIVITY

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55 CITY as LAB

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60 Aarhus Bypark Schønherr

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62 PROTOTYPING 1:1

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70 BRT Rapid Tansit System TransMilenio Great success with increasing the value of land along TransMilenio corridors. Once the development community understood that this was the plan and what it would do, they responded with new development. For example, there was a recent series of magazine ads taken out by developers showing their properties on a TransMilenio map.

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87 HETEROSCENASTICITY What heteroscenastacity tells is that everything in cities is going to be a little bit complicated, a bit chaotic! So the first thing you have to do is say, ok, I gotta be able to deal with chaos. There is no single answer to any problem in the city. The solution comes from a multiplicity of answers. (Erik Britton)