On-Time Performance
Alameda/AC Transit ILC
July 31, 2025
2 • OTP is a metric for measuring if bus service is on-time • AC Transit’s OTP standard is 72%
• For AC Transit, “on-time” is defined as buses arriving or departing a timepoint (i.e., bus stops listed on a timetable) no more than 1 minute early and no more than 5 minutes later than scheduled
• Many different factors can cause delays and affect OTP o General traffic and school-related traffic, construction, workforce availability, collisions, incidents on the bus, etc.
What is On-Time Performance (OTP)?
3 AC Transit Supervision
• Operations Control Center
(Call Center)
o Controller monitors data collected from
buses and is displayed on a screen
• Field (Boots on the ground)
o Supervisors are in the field at timepoints
along the route and ensure buses are
leaving on time
o Active Line Management
How is OTP managed?