Friday, April 6 • 3:30pm - 4:00pm
FR3.30.23 Changes in Low Income Population Levels Along the Millennium Line SkyTrain in Vancouver, Canada, 2001-2011: A Transportation Equity Analysis

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Background: Rapid transit offers many benefits to urban populations, but some population segments may lack equitable access to transit. Studies have assessed the impacts of new transit on vulnerable populations by observing changes in income and access to jobs. In this study, we investigate trends in low income population levels before and after the opening of the Millennium Line SkyTrain in 2002.

Research Question: What changes are observed in the proportion of population below Low Income Cut-Off (LICO) in areas near Millennium Line SkyTrain?

Methods: We compare 2001 and 2011 census data along the SkyTrain corridor to a comparison corridor with bus transit only (Hastings Street). In ArcGIS 10.5, we identified 107 Dissemination Areas (DAs) within 800 m of SkyTrain stations, and 110 DAs along the bus corridor. Our primary outcome is percent of population below LICO. We ran bivariate analyses in R 3.4.1 to assess trends over time and by corridor, and then mapped this to assess contextual drivers.

Findings & Anticipated Outcomes: In 2001, the proportion below LICO was 30.2% (SD=14.1) along the SkyTrain corridor, and 28.1% (SD=14.3) along the comparison corridor. From 2001 to 2011, the proportion below LICO decreased along both the SkyTrain (-9.3%) and comparison corridor (-6.9%). Mapping this change shows that areas with the largest decreases are closer to downtown, and more mixed changes (increases and decreases) occur in suburban areas. These patterns suggest a suburbanizing effect on low income populations along both corridors. Additionally, the migration rate (mean proportion moving out of the DA per year) appears to be highest in the same locations with the largest decreases in LICO, indicating there may be a displacement effect on low income populations. In our next stage we will test these effects using multivariable analysis.

Danielle DeVries, Simon Fraser University; Meghan Winters, Simon Fraser University

Friday April 6, 2018 3:30pm - 4:00pm
Provincial Ballroom (2nd Floor)