| Clue | Source | Date |
|---|---|---|
| Trip on the Amtrak, e.g. | ||
| Journey by rail (5,4) | ||
| Journey from Union Station | USA Today | 06 Dec 2022 |
| Commuter’s trip, sometimes | Wall Street Journal | 14 Jul 2020 |
| Commute, perhaps | ||
| Commute, for some | ||
| Track event? | ||
| Acela trip | ||
| Cross-country trip, maybe | ||
| Trip on the Pacemaker. |