Percentage of Muni Trips with Service Gaps

Sunday, March 1, 2020

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Objective

Objective 2.1.1: Improve transit service

Metric

Percentage of Muni trips with service gaps

Purpose

Tracking and reducing service gaps helps to improve the reliability and attractiveness of Muni as a travel option.

Definition

Percentage of Muni service gaps is determined by the number of gaps in headways (time between vehicles) by the number of total headways and is reported system-wide.

Methodology

sum ([number of headways with gaps]) ÷ sum ([number of headways])

Target

Achieve decrease in gaps over FY18 baseline

Reporting Frequency

Monthly

Contact

For questions, comments and accessibility issues, please contact the Performance Team at performance@sfmta.com.

Notes

The SFMTA has begun using a new vehicle locating system to measure service gaps based on departure times, rather than arrival times as in the previous system. This is consistent with changes to internal methodology and, among other advantages, allows for better measurement of service gaps as vehicles depart from their origin terminals. The change in methodology will be reflected in the April 2019 data and going forward. Records prior to April 2019 measure the on-time performance of arrivals.