PTC tracks the Public Transport Affordability Indicator (PTAI), which measures public transport expenditure as a percentage of household incomes to assess fare affordability for lower-income commuter group (represented by the second decile of households income) and the average public transport commuter (represented by the second quintile of household income). PTC also listens to feedback from the community through public engagement and surveys, to identify potential concerns about fare affordability, such as from specific commuter segments.