The effects of driver identity on driving safety in a retrospective feedback system

► This work proposes a new retrospective feedback system that uses driver identity and examines its effects on measures of driving performance and safety in a driving simulator. ► This work develops a new index - momentum of potential collision to calculate the effect of speeding on collision severity. ► Drivers benefit more from this new retrospective feedback system (e.g., fewer speeding violations, lower momentum of potential collisions) compared to the groups with feedback without driver identity and without feedback (control group). ► The work indicates the importance of showing driver identity in a feedback system design.