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Transit Connectivity Evaluation in Southeast Seattle. Tianle Cheng, Julie Coronado , & Neela Vahora URBDP 422 - Group Project March 13, 2014. Background. Transit - Dependent Communities L ow-income M inorities A uto-oriented development McKenzie 2013, Tomer 2011

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Transit connectivity evaluation in southeast seattle

Transit Connectivity Evaluationin Southeast Seattle

Tianle Cheng, Julie Coronado,& Neela Vahora

URBDP 422 - Group Project

March 13, 2014


Background
Background

  • Transit-Dependent Communities

    • Low-income

    • Minorities

    • Auto-oriented development

      McKenzie 2013, Tomer 2011

  • Metro aims to “promote fair and equal access to Metro’s services and activities for all people in our service area, including minority populations and people who have limited English proficiency, disabilities, or low incomes.”

  • King County Metro Transit Report 2013



Question
Question

How does transit connectivity, that is the linkage between residential areas and points of interests (land use parcels of services and amenities) as provided by bus routes, vary in Southeast Seattle?


Transit connectivity evaluation in southeast seattle

Areas of transit dependency

Median HH Income

Origin: neighborhood (Block Group)

Spatial Extent

Routes

Auto-oriented development

Scale

Transit Network

Connectivity

Stops

Destinations:

Points of Interest

Land Use:

  • Gov. Services

  • Retail/Services

  • School/ daycare

  • Park/playground

  • Public Facilities

  • Recreation/entertainment

Fare Cost

Access

Increased Ridership

Outreach & Public Knowledge

Pop. Density

Supporting Infrastructure

Safety & Comfort

Bus Stop Facilities

Frequency & Reliability

Temporal

Spatial



Procedure
Procedure

Select by Attribute

Select by Location


Procedure1
Procedure

Select by Location

Buffer

Select by Location

Frequency Table


Procedure2
Procedure

  • Total number of Points of Interests

    • 7 categories

      • Government Service

      • Office

      • Park/Playground

      • Public Facility

      • Recreation/Entertainment

      • Retail/Service

      • School/Daycare


Procedure3
Procedure

  • (Shannon) Diversity Index

    • It accounts for both abundance and evenness

    • Equation

H = 1.258



Findings analysis1
Findings & Analysis

Diversity Index

Number of Accessible POIs

  • I-90 Junction

  • Rainier Beach area

  • Martin Luther King Jr. Way S. corridor


Findings analysis2
Findings & Analysis

Number of Accessible POIs

  • Downtown

  • U District

  • I-5 Corridor North of Canal


Limitations
Limitations

  • Frequency of service

  • Transfer

  • POIs within block groups are also included

  • POI data mainly for Seattle

  • Euclidian vs. Network Distance

  • Other modes of transit excluded (Light Rail, Sound Transit buses)


Implications next steps
Implications & Next Steps

  • Diversity index of census block groups reveals connectivity to services and amenities

  • King County Metro can use the diversity index to improve services

  • Apply similar methods to entire city


Transit connectivity evaluation in southeast seattle

Thank you!

Questions?