T
Definition
The act of a Transportation Provider returning a previously accepted trip to the Broker, usually due to lack of capacity or driver availability.
Overview
Why it Matters
This is the #1 Key Performance Indicator (KPI) Brokers use to grade providers. A high turnback rate (e.g., >2%) can lead to contract termination because it forces the Broker to scramble for a "Back-up" vehicle.
How it Works
The provider clicks "Reject" or "Return" in the portal on a trip they accepted 2 days ago.
Code Comparison
Comparison: Turnback vs. Rejection
Rejection: Declining a trip when it is first offered. (No penalty).
Turnback: Giving back a trip after you promised to do it. (High penalty).
Common Questions
- Late Turnbacks: Returning a trip 1 hour before pickup. This is often fined heavily.
- If you must turn back a trip, do it at least 24 hours in advance.
Sources
TCRP Report - Paratransit Service Contracting