Service Description: This layer summarizes access to bus routes by block group.
Service ItemId: 82b095a0138d4fbfb6d8d11df156e68c
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: True
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Layers:
Description: Weighting & Summarizing process:
Default weight for each bus stop set to 1.
Four stops with no routes associated were weighted at 0.
Bus stops serving key routes were assigned a weight of 1.5. 54% of the 10,760 stops met this criteria.
Weights were summed within a block group. For example, a BG with one non-key stop and two key stops would get a weight of 1 + 1.5 + 1.5 = 4.
Divide by square miles and symbolize by quantile such that the low-density BG’s are lighter and high-density are darker. The 155 BG’s with no stops were intentionally included to highlight areas with low transit access.
Copyright Text: Block groups from census.gov
CTA bus stops downloaded from https://data.cityofchicago.org/Transportation/CTA-Bus-Stops-Shapefile/pxug-u72f on 9/28/2023
Spatial Reference: 102100 (3857)
Initial Extent:
XMin: -9809212.96984194
YMin: 5121474.98619333
XMax: -9723542.34854003
YMax: 5150826.8050548
Spatial Reference: 102100 (3857)
Full Extent:
XMin: -9789689.60271663
YMin: 5107796.50369146
XMax: -9742702.3250878
YMax: 5164611.27647512
Spatial Reference: 102100 (3857)
Units: esriMeters
Child Resources:
Info
SharedTemplates
Supported Operations:
Query
ConvertFormat
Get Estimates