New York City Street Construction Inspections and Violations

DOT's Highway Inspection & Quality Assurance (HIQA) records document inspections of utility, plumbing, and contractor work on city sidewalks, roadways, and highways. The dataset includes fields for inspection results, violation details, permit information, and specific location data. Records are provided by the New York City Department of Transportation via the data.cityofnewyork.us portal.

Use Cases

• Predict InspectionResultType using features like PermitType, PermitteeName, and InspectionType.
• Analyze spatial patterns of violations by mapping SpecificLocation, OnstreetName, and CrossStreetName.
• Identify common causes of non-compliance by text mining the DetailsofViolation and CARComments columns.
• Track inspection trends over time using the InspectionDate and CreatedOn timestamps.
• Assess contractor performance by aggregating violation records (NOVNumber, CARNumber) by PermitteeName.

Strengths

• Contains 27 distinct columns covering inspection details, violations, permits, and locations.
• Includes temporal data fields (InspectionDate, CreatedOn, ModifiedOn) for time-series analysis.

Limitations

• Sample data and total row count are unavailable, preventing assessment of dataset scale.
• Unknown license terms may restrict commercial or derivative use.

Provenance

Source

New York City Department of Transportation (DOT) Highway Inspection & Quality Assurance (HIQA).

Collection Method

Collected by DOT inspectors during site reviews for compliance with permit stipulations and city laws.

Freshness

Last updated 2026-04-01, indicating a future date which may be a placeholder or error.

Geography

New York City sidewalks, roadways, and highways.