| Clue | Source | Date |
|---|---|---|
| Constant irregular pulse causing major accidents | ||
| Major collisions | Thomas Joseph | 19 Jun 2023 |
| Backlogs in inboxes | Universal | 22 Jun 2021 |
| Highway wreck creations | Family Time | 28 Sep 2020 |
| Multi-car mishaps | USA Today | 27 Sep 2019 |
| Major accidents | New York Times | 15 Sep 2019 |
| Major accidents | ||
| Multi-car mishaps | ||
| Multi-car collisions | The Washington Post | 26 Dec 2017 |
| Multi-car collisions | LA Times Daily | 26 Dec 2017 |
| Multi-car collisions | ||
| Multicar accidents | New York Times | 27 Sep 2015 |
| Multicar accidents | ||
| Major accumulations | ||
| Multi-car collisions | ||
| Highway accidents | ||
| Highway accident consequences | ||
| Multicar accidents | ||
| Rush hour mishaps | ||
| Road closers, maybe | ||
| Road closers, maybe | ||
| They're worse than mere traffic jams | ||
| Backlogs | ||
| Some accidents | ||
| Traffic jammers | ||
| Multicar accidents | ||
| Log jams. | ||
| Results of scrimmages. |