M
t   r   a
            A
            n   s   f
                        L
                        o   r
                  ...
GROWING NEW
BLUE-GREEN VEINS
intro
On background of analyses on Malmø and            Connecting urban public and semi-public rooms
investigationes on the cit...
analyses
: The growing blue green
  corridors and transforming
  squares




: points of importance (the sites)


: bus-connecting ...
vy




vy




vy



vy



vy



vy
S    T      R     E   E    T        -   S   C   A    P     E    -    D     E     L    I    G     H     T    S
The importan...
private and public
in the street-scape
private                         semi-public                                                        pub...
the corridor
Rulal/industrial aeras




   bikepaths/            waterways/ponds :    industrial/lagre warehouse sites:    trees :
   l...
Urban neighbourhood street aeras




broad side- public gardens :   urban             waterways/        bikepaths/   acces...
variations in space
water and vegetation
slow water background
                                    for activity and
                                    reflection
...
Paris case study
Jardin ´d Eolé : the everyday park




                                      gardening




         handeling of urban run...
variations in zones and space




              exercise                               low activity zones
                ...
sustainable management
   of urban runoff
Background                                                Effects of Urban Runoff on Groundwater Quality
By early 1970, th...
GREEN TECHNOLOGY BMPs             Total Suspended Solids (TSS)      fies the runoff reductions and    DNREC.
(Best Managem...
not like this....   but maybe like this....
As the City of Malmø already has established
guidelines and directives to mana...
extensive ecoroof
                      wetland             (shallow vegetated)


                                        ...
the project(s)
1 situation  one :
            Møllevångstorget, the marketplace
            Important location in Malmø due to many
     ...
site one




    3       2
        1
layers of cultural and human actions



exists with many meetings and crossings
busslanes passing
market activity
cafés,re...
Malmø´s meltingpot




      road-surface             public WC       market activity       hotspot
                      ...
night view   over the square
                               outdoor restaurants




        nightlife in Møllan      dayli...
site 2




  3       2
      1
Public meets private


                       school



                       school playground



                      ...
This situation is to me ideal to introduce
                                          a semi-public garden project. The pot...
neighbourhood of
garden delights
veget




                                                                        ion) um
                                ...
site 3




  3          2
         1
New metroline stop Triangelen



                                new cityline stop


                                trees...
greener city-space
vegetated roof:




                                                                    -cen o
                           ...
malmø growing green veins
malmø growing green veins
malmø growing green veins
malmø growing green veins
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Transcript of "malmø growing green veins"

  1. 1. M t r a A n s f L o r M m i n Ø g
  2. 2. GROWING NEW BLUE-GREEN VEINS
  3. 3. intro
  4. 4. On background of analyses on Malmø and Connecting urban public and semi-public rooms investigationes on the city through walking, by a mentally easy remembered and physically reading, talking, googling etc a blue-green web inviting and easy oriented structure. It brings has developed. unexpected and new experiences to both the visitor and the inhabitant. The blue-green web strategically developed to better dealig with a wetter future, Imagine walking along a small stream, with handeling the increasing amount of urban runoff trees, straws, insects, flowers, birds and more in a more sustainable economical way. living things and all the different smells and sounds they bring with them through the However the most important issue of this struc- seasons. ture is the experiences it creates for people moving through the streets and neighbourhoods It might turn into a really refreshing start of on their way to their everyday destination. the day on your way to work...
  5. 5. analyses
  6. 6. : The growing blue green corridors and transforming squares : points of importance (the sites) : bus-connecting stations : recipients of runoff downtown : new cityline : important buffer situation for cleansing runoff : spaces in the city ideal for transformation : wide alley ideal for bufferzone : wide car-streets ideal for transformation
  7. 7. vy vy vy vy vy vy
  8. 8. S T R E E T - S C A P E - D E L I G H T S The importance we give our senses Changing from private to public transportation Assuming fuels for private car use will be unattractively ex- Three factors defines landscape : pencive in the future and that this will make the use of pri- (in Ian Thompson´s theory) vate transportation less important, I fokus on alternative Ecology use of space in the street-scape regarding amount of space for carparking, number of lanes needed for cars in a street etc. Community Using this space to recive, treat and experience water gives a city and its inahabitans and wisitors a lot more back. Delight It brings life into the streets on a hole new level. delights have a key It is obvious that role in giving identity to the ur- ban landscape. This assumption means that landscape aestetic and its enhancement should be considered beyond its visual as- pects, in combination with other dimentions of the urban environment. The balance between natural environment and human societies has always existed in societies; and searching for delight and asthetics, de- light and balance of human tasks and their environmental relationship, has always been man can considered in such a way that live comfortably with nature. (From Thompson´s point of view “Ecology” is one of the effective elements in landscape).
  9. 9. private and public
  10. 10. in the street-scape private semi-public public alotment gardens neighbourhood community garden-projects parks Allotment gardens in and Malmø,S:t Knuts Square may-03 artist project on Agenda 21 near a city is green aeras http://koloni.dbskane.se/kolonienglish.htm Parks in a city absorbes and absorb some rainfall a lot of runoff and rain- Parcel/urban-gardening (that is not closed in) acti- (and produses food), but water and feels open and vates and gives experiences to the public. it gives little back to public for everyone. the public. allotment gardens of Elisedal aerialphoto and view over Pildammspark showing parcelgarden-aera Ribersborgpark aera next to Fosie industrial aera close to the Pildammstheater
  11. 11. the corridor
  12. 12. Rulal/industrial aeras bikepaths/ waterways/ponds : industrial/lagre warehouse sites: trees : lanes : -movement -use of green roofing, gravel pits -shadow -collecting runoff with vegetation and connecting -decrease wind to ensure -holding water runoff stream to waterways -rain shelter -play -use of trees and bushery to fight -evaporation quick -cleansing UHI-effect -Co2 binding travel -penetratable surfaces for water -fighting UHI-effect to “disappare” -absorbes water from runoff -zoneing-elements/ creates space
  13. 13. Urban neighbourhood street aeras broad side- public gardens : urban waterways/ bikepaths/ accesible trees : walks : “furnishing” : ponds : bus-stops/ -brings action pedestrian prioritized -shadow space for in to space -attractors/ -movement lanes : bus-lanes : -decrease wind interaction -education background for -collecting run -rain shelter and play -time in space social encoun off to ensure -evaporation -sosial encoun- ters -holding water to ensure quick and -Co2 binding ters -relaxation -play quick easy -fighting UHI-effect -fighting UHI- -reflection -cleansing travel travel -absorbes water from effect -play runoff -zoneing-elements/ creates space
  14. 14. variations in space water and vegetation
  15. 15. slow water background for activity and reflection vegetated roofing and surfaces fountains and water- streams rinsing water ponds variation in waterway
  16. 16. Paris case study
  17. 17. Jardin ´d Eolé : the everyday park gardening handeling of urban run-off play
  18. 18. variations in zones and space exercise low activity zones public WC (sitting,talking, having gravel surface with nat- lunch,watching,thinking) ural seeding straw play zones kiosk water bassin (with fish) parcel-garden aera grass surface
  19. 19. sustainable management of urban runoff
  20. 20. Background Effects of Urban Runoff on Groundwater Quality By early 1970, the deleterious effects of urban runoff The movement of pollutants in urban runoff is a con- on stream water quality had become apparent (Coughlin cern. Urban runoff contains chemical constituents and and Hammer, 1973, and sources cited therein). At the pathogenic indicator organisms that could impair wa- time though, relatively few studies had focused on the ter quality. Studies by EPA (EPA 1983) and the US Geo- nature, extent, and effects of urban runoff. Reports logical Survey (USGS 1995) indicate that all monitored from the states began to accumulate a considerable body pollutants stayed within the top 16 centimeters of of information. By the late 1970s, these reports had the soil in the recharge basins. The actual threat to indicated that urban runoff is a significant source of groundwater quality from recharging urban runoff is de- Nonpoint Source (NPS) Pollution. However, it was dif- pendent on several factors, including soil type, source ficult to determine the particular effects of urban control, pre-treatment, solubility of pollutants, main- runoff on water quality due to interferences from other tenance of recharge basins, current and past land use, pollutant sources (USEPA, 1984). (The Delaware Urban depth to groundwater, and the method of infiltration Runoff Management Approach) used. (from the California Water Plan Update 2009)
  21. 21. GREEN TECHNOLOGY BMPs Total Suspended Solids (TSS) fies the runoff reductions and DNREC. (Best Management Practices ) and adsorbed metals, although pollutant removal of overland Stream Bank Restoration dif- The BMPs addressed in Green less effective in terms of nu- conveyance through properly de- fers from other BMPs in that it Technology and pertinent as- trients. While swales are not signed bioretention structures. provides no direct hydrological pects of their design and per- thought to be capable of quan- controls, nor does it remove formance are briefly summarized tity management, designs incor- Infiltration Practices pollutants from upland runoff. below: porating check dams can provide - Most Green Technology BMPs However, by stabilizing erod- substantial attenuation of peak incorporate infiltration as ing stream banks, it may be flows. Green Technology quanti- the most effective mitigation Conservation Site Design part of the treatment process. fies the runoff reductions and Specific infiltration fa- measure for unstable streams - Site design standards to re- pollutant removal of overland cilities include infiltration stressed by urban runoff. duce the extent of impervious conveyance through properly de- trenches. Infiltration trenches surfaces and increase the ex- signed swales. located in swales provide ad- Unfortunately, while there is tent of wooded areas are a key ditional wetted surface area great interest in using Green element of this approach. Terraces and storage volume, and often Technology BMPs, there are - Terraces are swales extend- they can be designed to pen- remarkably few rigorous proce- SourceAreaDisconnection dures available for the engi- ing across gentle slopes de- etrate shallow impermeable soil – Disconnection is the process neering and regulatory communi- signed to intercept runoff and profiles to recharge deeper of directing runoff from im- ty to utilize in designing them increase the potential for soil horizons. Green Technology pervious surfaces over adjacent and evaluating their effective- infiltration. In terms of pol- quantifies the runoff reduc- vegetated surfaces, providing ness. Many regulatory programs lutant removal, terraces oper- tions of infiltration trenches. infiltration and pollutant re- use a straightforward runoff ate as filter strips, as runoff Complementing these engineered moval. Green Technology quanti- volume approach, in which the flows into them from upslope. BMPs, Riparian Buffer Systems fies the runoff reductions by increase in small storm runoff They are similar to swales in (RBS) and Stream Bank Restora- disconnecting flow from imper- volume due to land development terms of runoff response. Green tion (SBR) BMPs are other im- vious surfaces as it discharges is to be treated and/or re- Technology quantifies the run- portant Green Technology sys- onto adjacent pervious areas. tained on site. However, this off reductions and pollutant tems that can enhance receiving removal of overland conveyance waters. These BMPs provide sub- approach typically assumes a Filter Strips through properly designed ter- stantial improvements in stream constant runoff volume in pro- – Filter strips spread run- races. habitat and stability, as well portion to rainfall amount, and off uniformly over a filtering as reducing pollutants from ur- does not route runoff through surface of vegetation, provid- ban runoff. RBSs provide con- nonstructural BMPs. Instead, ing infiltration and pollutant Bioretention Structures simplified volume/outflow equa- - These are landscaped pocket siderable benefits to streams removal. Filter strips can pro- through shading, bank stabili- tions are extracted from the depressions designed to infil- literature, without addressing vide substantial treatment if zation and litterfall. RBSs can trate runoff through an en- the processes involved during not overloaded by sediment and also provide substantial runoff gineered soil media. Incorpo- storm events. Where this ap- runoff. Green Technology quan- filtering and pollutant remov- rated into the urban landscape, proach leads to over-design, it tifies the runoff reductions al when conditions are favor- they can provide substantial may be beneficial if the origi- and pollutant removal of filter able. Since RBSs are sensitive filtering and nutrient trans- nal reduction targets are in- strips. to concentrated flows, design formations before runoff is adequate, otherwise it causes discharged into the convey- procedures to ensure sheet flow Biofiltration Swales/ through level spreaders, filter unnecessary expense. Where it ance system. Ongoing research leads to under-design, the hy- Grassed Swales suggests that this BMP can be strips and parallel swales can be incorporated into the design drological impacts are not ad- - Biofiltration swales convey designed to provide substan- equately mitigated. runoff at shallow flow depths tial soluble phosphorus removal of this BMP. A companion docu- ment specifically focused on (from “The Delaware Urban Run- through wide swales. They can capabilities, unlike most other off Management Approach”) be very effective in removing BMPs. Green Technology quanti- RBS design is being prepared by
  22. 22. not like this.... but maybe like this.... As the City of Malmø already has established guidelines and directives to manage runoff in a sustainable way, taking the use of rain- water (and maybe greywater?) to the next level is much closer in time than in other cities as the political currage is of high standard, and the bureaucracy prosesses and cooperation between departments in the city is alrady es- tablished. Taking this to any desired level of good management with nature seems possible. Repeating the most important goals regarding SUR-management of the City of Malmø : The natural water balance shall not be af- fected by the urbanization : Pollutants shall to gratest possible extent be kept away from the urban runoff (source control of pollutants) : The drainage system shall be designed so that harmful backing up of water in the exist- ing drainage system is avoided. : The drainage system shall be designed so that part of the pollutants in the runoff are removed along its way to the receiving waters. : Stormwater shall wherever possible be looked upon as a positive resource in the urban land- scape (from the document “BlueGreenFinger- prints” by Peter Stahre)
  23. 23. extensive ecoroof wetland (shallow vegetated) cictern stormwater ated ponds v eget e swal (shallow vegetated) extensive ecoroof fl ege (v in ege ow ta wetland (v fi ta -t ti lt ti hr on permeable ra on ou ) ti ) gh paving on zo -z ne on e example of stormwater-management using ponds and wetlands
  24. 24. the project(s)
  25. 25. 1 situation one : Møllevångstorget, the marketplace Important location in Malmø due to many layers of activity.Main traffik lane; several bus-lines passes. Close by is the second most important bus-connecting sta- tion, after the central station. Meltingpot; the experience of the cultur- al diversity of Malmø is very accessable here. 2 situation2 : Møllevångens skola, childrens school close to the most important park in Malmø. A location suitable for introducing a neighbourhood urban garden project where neighbours and the children in the school together with the passersby can share a daily experience and interaction in a “garden of delight”-environment. 3 situation3 : 3 2 Large parkingspace behind Triangelen shop- pingmall. Becomes a new square and a very 1 important location in Malmø when the city- line (fastrail underground connection be- tween Centralstation and Øresunds bridge is finished. Situation today pays little honour to the church situated here.
  26. 26. site one 3 2 1
  27. 27. layers of cultural and human actions exists with many meetings and crossings busslanes passing market activity cafés,restaurants,bars,clubs (outdoor/indoor) walking past/through biking past/through public toilets (with belonging activity) small shops gourmet shop statue (function as) waiting-hotspot kiosk/snackbar
  28. 28. Malmø´s meltingpot road-surface public WC market activity hotspot zone (statue) cafés/bars/restaurant kiosk outdoor café car/bus-lanes trees shops bike-lanes pedestrian crossing somewath dead zone
  29. 29. night view over the square outdoor restaurants nightlife in Møllan daylife in Møllan
  30. 30. site 2 3 2 1
  31. 31. Public meets private school school playground undeveloped space private housing public/commersial public park (Folkets Park) bike lane through aera possible new pedestrian route through new activity- zone
  32. 32. This situation is to me ideal to introduce a semi-public garden project. The poten- tial for a new pedestrian route through the situation, and the school on one side and the private appartment-building on the other side make the site a perfect loca- tion to be developed into a new zone for interaction with nature and with people. undeveloped space between private hous- ing and Møllevångens-shcool empty empty empty space... view over site from monbijou-gatan view from school
  33. 33. neighbourhood of garden delights
  34. 34. veget ion) um a -slow ted roof: pond ( v e g i n g medi ing a clean n sing d water etat ns d clea pon ens gard l e parc new pedestrian path inle t ern ens outlet gard l e cict parc ern pond perm Folkets Park cict eabl e su rfac e School building Scho o play l grou nd veget a -slow ted roof: ing a clean n sing d water
  35. 35. site 3 3 2 1
  36. 36. New metroline stop Triangelen new cityline stop trees st johannes church art gallery+café shopping mall bike lane through 4 lane trafficstreet
  37. 37. greener city-space
  38. 38. vegetated roof: -cen o ter -slowing and ping ce t cleansing water shop entran outd oorc tr ppi afé aera sh ia new o ng g m a de li ou el ve tl n ry et n -z on e ll pond (t out ra let il er ir f s) s ta eof er ns at ri w r fo et inl in le t et inl cleansing water -slowing and vegetated roof: new ANGEL TRI cit N st johannes vegetated roof: church -slowing and yli cleansing water ne st. smaller cleansing- pond
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