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  "documentTitle": "Transportation Warehousing Sector",
  "authorId": "McKinsey",
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  "notes": "The slide uses a map overlay of transit infrastructure on top of income-level census data, paired with a bar chart showing the percentage of residents in low-income areas lacking access, segmented by race and occupation.",
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      "text": "Share of residents more than 1/4 mile from high-frequency buses and 1/2 mile from metro stations in low-income neighborhoods",
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      "text": "Source: US Census; Open Data DC; WMATA District of Columbia Timetables",
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      "kind": "title",
      "text": "4a: Swathes of low income districts are under-served by high-frequency transit",
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