| Clue | Source | Date |
|---|---|---|
| Going slowly | LA Times Daily | 11 Feb 2024 |
| How rush-hour traffic often moves | The Washington Post | 20 Mar 2021 |
| How rush-hour traffic often moves | LA Times Daily | 20 Mar 2021 |
| How rush hour traffic often moves | Wall Street Journal | 18 Aug 2018 |
| How rush hour traffic often moves |