Through Lines: An Exploration of Connections via Chicago's Alleyways

UNDERSTANDING ACCESS
A weighted analysis was used to measure the
severity of the following demographic and
infrastructure conditions within Chicago
neighborhoods today:
Social Vulnerability
• Vehicular ownership
• Poverty levels
• Education
• Race + ethnicity
• Disability status
• Exposure to pollutants
• Population density
• Housing unit density
• Walkability
Infrastructure + Access
• Areas more than 0.5 miles away from a
neighborhood greenway or protected
bike lane
• Areas more than 0.25 miles away from
an off-street trail
• Amount of accessible parkland per
1,000 people
• Areas within a 0.25 mile radius of
incomplete or missing sidewalk
conditions
Average scores were weighted and calculated
on a scale of 1-5, with higher scores signifying
areas that are most suitable for alleyway
retrofit due to existing gaps in access to
resources and high social vulnerability levels.
Analysis Limitations
For the purpose of this research, it’s assumed
that socially vulnerable areas lacking in
access to resources should be prioritized for
investment and alleyway retrofit. Because this
hypothesis is based on theory, “qualitative”
discussions were had with key communities
identified by “quantitative” evidence of the
analysis. Discussions with communities
are integral in understanding if alleyway
investment would be welcomed and used by
the community.
In addition, the analysis assumes that
demographic data is equally distributed
throughout census block groups, which
does not accurately reflect population and
household density trends. All data factors used
in this analysis do not relate to geolocated
positions such as “households”, therefore
an understanding of location-based value
disbursement would not be exact.
Conclusions
For the purposes of this research, it can be
concluded that areas on the West and South
Side of Chicago trend towards “highly suitable”
for alleyway retrofit based on assumptions
that socially vulnerable populations with low
access to community resources and existing
infrastructure are most practical for alleyway
retrofit and investment.
UNDERSTANDING
ACCESS
On average,
communities on
the South and
West Side are
more
20%
Suitability (1-5], “5”
showing high suitability
socially
vulnerable
than cities on
the North Side
1 3 5
0 2 4
Miles
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THROUGH LINES | INVENTORY + ANALYSIS THROUGH LINES | INVENTORY + ANALYSIS
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