Bike Lab Researching cycling facilities, advocacy, and neighborhood change
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Racially-biased policing in Oakland (updated with 2019 data)

Collection of Chicago (North Lawndale) maps

Collection of Chicago (North Lawndale) maps

Map of Chicago, showing Burgess' concentric-circle zone model on top of the FHA redlining map for Chicago. Nearly all of zone 2 (zone in transition) and zone 3 (zone of workingmen's homes) were redlined. Zone 4 (residential zone) is mostly yellow, and zone 5 (commuters zone) is mostly green and blue.

Burgess concentric circle map in GIS

Map of Los Angeles County census tracts, colored by percentage of Black population, overlain with Metro Bike Share system coverage.

Assumption of equity

Displacement and density

Two maps of Valencia Street in San Francisco, showing a large increase in median household income from 2000-2018, and a sizable decrease in Hispanic population.

Bike infrastructure and displacement

Map of San Francisco showing Golden Gate Park and a selected census tract (67000) in the Outer Sunset

Error bar

Chart showing fatal crashes in Vision Zero cities from 2011-2018, gradually rising about 20%.

Revisiting a bad idea

Biking while Black part 2: Racially-biased policing in Richmond, CA

Map of Oakland, displaying the large number of stops in West and East Oakland, and the generally large proportion of African-Americans stopped in all police beats

Biking while Black: Racial bias in Oakland policing

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The Bike Lab is an ongoing project of Totally Doable Consulting.

All content © 2020 Tom Holub unless otherwise noted.