What is the index for?
Secretaria Municipal de Transportes presents the SPPO Transport Quality Index as a continuous and standardized assessment instrument. The results are calculated quarterly and published after validation and consolidation.
The index became part of system monitoring following the legal agreement signed on April 30, 2025, in the context of the transition to new operators.
How to read an aggregated grade
An average facilitates comparison but reduces detail. A company may have a new fleet and low regularity, or a good average supply and problems concentrated on a few lines. Therefore, the final value must be open in its components.
- Compare the same quarter and the same methodological architecture.
- Note which indicators raised or lowered the score.
- Check quantity of services and weight of each component.
- Cross-reference the company's results with specific lines and territories served.
What IQT Doesn't Answer Alone
The index does not describe every individual experience: a person may face an exceptional wait even on a well-rated operator. It also does not automatically measure capacity on each trip, access to stops, safety in the surrounding area, or the relative cost for each family.
The most productive use is to combine the quarterly view of IQT with observed supply data, complaints, operational plans and territorial analysis.