MTA LIRR Major Incidents: Service Disruption Metrics

Major incidents on the Long Island Rail Road are defined as events causing ten or more trains to be delayed over 5 minutes 59 seconds, canceled, or terminated. Columns suggest the dataset tracks these incidents by date, with detailed counts of affected trains segmented by AM peak, PM peak, and off-peak service periods. The data is available on multiple government open data platforms, indicating its use for public accountability.

Use Cases

• Analyzing seasonal trends in major service disruptions using the Date column.
• Comparing the impact of incidents across different service periods (AM Peak, PM Peak, Off Peak) using the Late, Canceled, and Terminated columns.
• Investigating the root causes of delays by linking quantitative disruption metrics to the Event Description.
• Modeling the total passenger impact of an incident by aggregating counts across all peak and off-peak columns.

Strengths

• Provides a clear, operational definition of a 'major incident' (10+ trains delayed >5:59, canceled, or terminated).
• Offers granular breakdown of incident impacts by time-of-day (AM Peak, PM Peak, Off Peak).
• Is hosted on multiple official government data platforms (data.ny.gov, datagov), suggesting vetting and public importance.

Limitations

• Metadata conflicts exist: the 'last updated' date differs between sources (2026-05-15 on Socrata vs. 2026-02-21 on Data.gov).
• Key metadata like row count, file size, license, and author are missing from all provided sources.
• The dataset's temporal coverage is only implied by the title ('Beginning 2020'); the exact date range of available records is not specified.

Provenance

Source

Metropolitan Transportation Authority (MTA) / Long Island Rail Road (LIRR), via data.ny.gov.

Collection Method

Likely compiled from official LIRR operational reports and incident logs.

Time Range

Beginning 2020; specific end date not provided.

Freshness

The most recent update recorded is 2026-05-15 15:07:19 on the Socrata platform.

Geography

Long Island Rail Road network, New York, USA.