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Sustainable City Development: Innovative Green Infrastructures in Lahti

Learn about Lahti's bold environmental initiatives, including continuous master planning for sustainable mobility and innovative stormwater management. Discover the city's strategic focus, citizen-led projects, and plans for a greener future.

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Sustainable City Development: Innovative Green Infrastructures in Lahti

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  1. EU inspiration green infrastructures, in different scales Innovative city development within environmental boundaries Eira Rosberg, SustainableDevelopmentCoordinator 26 Sept 2019 Green 4 GreyseminarBrussels

  2. In this presentation Continous strategic master planning process Innovative stormwater management Encouraging sustainable mobility

  3. With a populationof 120,000, Lahti is a growing,vibrant, BOLD ENVIRONMENTAL CITY

  4. Continous Master planningprocessenablesdifferentstrategicfocusesevery 4 years. Now 2017-2020 focus is on sustainablemobility. Thetargetyear is 2030.

  5. The Everyday Places and Routes material was collected in spring 2018 Made withMaptionnairmapquery - 530 respondents - 6500 placesmarked Foureventsin shoppingcenters - Over 300 participants - Locations, butideas and feedback, also as text

  6. Example of mapanalysis; positive and negativeplaces

  7. In themasterplanningprocess: • Wide amount of side reportsliketheecosystemservicesreport, thequietplacesstudy and thecarbonsinks and storagesreport • Impactassessmentsfromvarioustopics (localeconomics, cultural, ecosystemservices, forestry, climatechange) • ~50 peopleparticipatingimpactassessmentprocess • Fewalternativeareas in thedraft The Master plandraftmapreceivedcomments 90, mostly via webpages and fromcitizens. Mostcommentswereaboutforests and parks.  Next year to the city council for decision-making

  8. Stormwater management innovations

  9. Hennala, oldmilitaryarea in Lahti • Open stormwaterstructures - 30 ha developingarea - Architecture competition 2016 • Minimizingtheleaching of nutrients and harmfulsubstances

  10. Planning storm water for city centre and the development area lahti.fi/puhdashulevesi Aims for stormwaterplanning : • Multi-functionaluse of stormwaters, in middle on developinghousing and servicearea. • Climatechangeadaptation • Coherentwiththeplanning and architecture of thearea • Stromwatersfromthearea and from city centre, via existingpipelines and newpumpingstation, and to treat city centreoverflows • Soil is clay • Especiallyneed to treatphosphorus and heavy metalsfromthestormwater • Bio-filtration • Testingdifferentmaterialswith UniHelsinki • Follow-up

  11. Cost-efficienthybridstormwatersolution in Lahti • Waterexit • Detentionpool • Bio-filtration in threesections • Stormwater to thesystem • Channel • Wetland lahti.fi/puhdashulevesi

  12. Citizenzs’ cap and tradeco-created • Citicap aims to reduce emissions from transport, collect and make available digital data on mobility and develop new transport services for citizens. • The CitiCap project will experiment with • a personal carbon trading scheme for mobility as part of the Lahti region’s transport policy • produce a platform for mobility mass data • build a 3 km main cycle route based on smart solutions • See https://www.smartlahti.fi/citicap/

  13. Weeklypersonalcap, based on the Lahti emission target • Appautomaticlydetectsthe transport you’reusing • And calculatesemissions • Pilotphase at themoment • Coming: morerealisticemissions of yourcar , sociallyacceptablevaryingcaps for differentgroups of people • If you undercut your weekly cap, you’ll gain profits like discounts and services • University studies coming

  14. THANK YOU!Eira.Rosberg-Airaksinen@lahti.fi

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