Pull Chicago CDOT street/lane closure permit records via the city's Socrata open-data API instead of manually browsing the ipi.cityofchicago.org portal.
domain: data.cityofchicago.org · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Identify 'Transportation Department Permits' (pubx-yq2d) as the dataset covering CDOT permit applications affecting public streets
Cross-check the 'Public Way Construction Permits Issued' dataset linked from chicago.gov/city/en/depts/cdot/dataset/street_closure_permits.html for issued street-closure-specific records
Query the Socrata SODA endpoint (data.cityofchicago.org/resource/{id}.json) with SoQL filters for permit type (e.g., 'Street Full Closure'), date range, or location
Compare against the public-facing ChiStreetWork map tool for a human-readable cross-check of the same underlying permit data
Register a free Socrata app token for sustained or high-volume polling
Known gotchas
Permit type taxonomy includes many categories beyond lane/street closures (e.g., driveway, sidewalk cafe); filter explicitly on closure-related permit types rather than assuming the whole dataset is closure-relevant
This is the citywide CDOT permits dataset, not a purpose-built lane-closure API — field names and update cadence follow general-purpose open-data conventions, not TCP-specific ones
New permit applications submitted via ipi.cityofchicago.org may lag before appearing in the open dataset; don't assume real-time parity between the live portal and the open-data extract
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