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ISTHAR KICK OFF MEETING

ISTHAR KICK OFF MEETING. THE POINT OF VIEW OF THE USER CITY : GRAZ - AUSTRIA. City of Graz- location. 270.000 Citizens. City of Graz- available tools -1. Emission inventory Traffic, residential combustion, industry Spatial resolution: street network 80% line sources, rest as area sources

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ISTHAR KICK OFF MEETING

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  1. ISTHAR KICK OFF MEETING THE POINT OF VIEW OF THE USER CITY : GRAZ - AUSTRIA

  2. City of Graz- location 270.000 Citizens

  3. City of Graz- available tools -1 • Emission inventory • Traffic, residential combustion, industry • Spatial resolution: street network 80% line sources, rest as area sources • Temporal resolution: 1h • Traffic model: resistance model • Dispersion tool: meso g scale, prognostic, diagnostic

  4. City of Graz- available tools -2 • Noise model (inventory) • Traffic on street network (simple resistance model) • Temporal resolution: 1h • Spatial resolution: street network • Dispersion tool: local scale (street canyon)

  5. NOx-Emissions

  6. FLOW FIELD SIMULATION Flow field 10 m above ground

  7. NO2-Concentration 9am [ppm]

  8. Pollution dispersion in complex terrain Annual mean value for NO2

  9. Micro-scale dispersion – street level NE-wind 1m/s; flow field

  10. Micro-scale dispersion – street level NE-wind 1m/s; NOx - concentration

  11. Expected results from ISHTAR • Hot spot recognition • Impact of different scenarios • Technical measures • New technology vehicles, alternative fuels, etc. • Rerouting of traffic, congestions…… • Non technical measures • Change in modal split for certain districts

  12. Expected results from ISHTAR • Infrastructural improvements • Air quality improvement (not really, except at some locations) • Lower noise levels (yes) • Reduced health effects (yes/no, but mapping of health effects zones)

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