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Comparative Analysis of Structural Accessibility Levels by Transport Modes in Edinburgh

This report from the WG2 meeting in Edinburgh explores the concept of Structural Accessibility through a comparative analysis of different transport modes and their effectiveness in providing access to various activities such as schools, hospitals, and parks. It assesses how urban structure influences travel choices and presents a Diversity of Activity Index to measure accessible activities. The report utilizes statistical data and expert interviews to illustrate accessibility levels by census track, helping to identify the enabling or constraining conditions of urban transport systems.

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Comparative Analysis of Structural Accessibility Levels by Transport Modes in Edinburgh

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  1. SALStructuralAccessibilityLayer WU_PT1 Cecília Silva Vitor Oliveira, Ana Amante, Sílvia Sousa WG2 meeting . Edinburgh UK

  2. Concepts • SAL: • Geographical representation of comparative accessibility levels by types of transport to different types of opportunities • Structural Accessibility: • Assess how urban structure constrains travel choices Access to: different Activities People Access by: different Transport Modes WG2 meeting . Edinburgh UK

  3. Method • Diversity of activities accessible • Ex: schools, hospitals, shops, services, parks • By transport mode: • Non-motorized, public transport and car • Comparison between accessibility levels by different transport modes WG2 meeting . Edinburgh UK

  4. Indicators • Diversity of Activity Index: • Contour measure type 0 Noneoftheactivitiesisaccessible Accessibility to alltheconsideredactivities fy – ponderation factor regarding frequency of use 1 WG2 meeting . Edinburgh UK

  5. Indicators • Accessibility Clusters (comparative measure): • High accessibility levels by particular transport modes • Favourable conditions for the use of those transport modes NM PT II I V III IV VI VII CAR WG2 meeting . Edinburgh UK

  6. Input • Data: • Statistical data (at census track) • Population • Employment • Activities by type • Geographical data • Transport infrastructure • Mobility system service level WG2 meeting . Edinburgh UK

  7. Input • Case specific • Study area boundaries • Level of spatial disaggregation • Relevant travel generating activities • Use frequency of activities (relative importance in travel) • Cut-off criteria and values (accessibility limits), such as: • Time • Cost • Convenience, etc • Meaning of high accessibility • Decision vs Survey WG2 meeting . Edinburgh UK

  8. Output • Accessibility levels (from 0-1) of each census track by transport mode • Comparative accessibility: • land use and transport conditions enabling or disabling the use of particular modes • How urban structure constraints mode choice WG2 meeting . Edinburgh UK

  9. Output Examples WG2 meeting . Edinburgh UK

  10. Output examples WG2 meeting . Edinburgh UK

  11. Usefulness in practice • Interviews with experts • Robustness • NMDivAct • Clusters • Usefulness as design support tool • Practical applicability • Legend: positive opinion uncertain negative opinion no answer Experts interviewed: 17 (transport, land use, practitioners, researchers) WG2 meeting . Edinburgh UK

  12. SALStructuralAccessibilityLayer WU_PT1 Cecília Silva Vitor Oliveira, Ana Amante, Sílvia Sousa Thank you WG2 meeting . Edinburgh UK

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