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Background of study participants.
| Type of participant | Number | Total | Characteristics | ID number prefix |
|---|---|---|---|---|
| Organizational leader/union—bus | 5 | 13 | 12 males/1 female 9 directors/2 unions/2 health and safety |
OL |
| Organizational leader/union—rail | 7 | |||
| Organizational leader/union—tram/light rail | 1 | |||
| Workers—rail | 3 | 5 | 2 males/3 females 3 public-facing/2 office-based |
W |
| Workers—bus | 2 |
