Chicago Street Light Outage Reports from 311, 2011 Onward

250,000 street lights in Chicago are maintained by the Department of Transportation. This historical dataset contains all reports of 'Street Lights - All Out' (outages of 3 or more lights) made to the city's 311 service line since January 1, 2011. Data includes requests from open to completed status, with duplicate request handling logic, and was updated daily.

Use Cases

• Predict street light circuit failure patterns based on historical outage reports
• Analyze 311 service request response times and completion rates for infrastructure issues
• Model the spatial distribution of street light outages across Chicago neighborhoods
• Study the frequency and handling of duplicate service requests within a four-day window

Strengths

• Covers a long temporal range, with data starting from January 1, 2011
• Describes a specific, actionable service request type ('All Out' for 3+ lights)
• Includes documented logic for handling duplicate requests within a circuit

Limitations

• Dataset is marked as historical-only; its function was replaced by another dataset
• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

City of Chicago

Collection Method

Reports made to the city's 311 service line, managed by the Chicago Department of Transportation (CDOT)

Time Range

From January 1, 2011 onward

Freshness

Last updated 2026-03-22 04:11:33.618053; freshness should be verified

Geography

Chicago, Illinois, USA