| Clue | Source | Date |
|---|---|---|
| Fast US roads which may have toll sections | The Times Specialist Sunday | 17 Aug 2025 |
| Express roads | Wall Street Journal | 14 Jul 2025 |
| Toll-free highways (8) | ||
| Zero-cost methods used to travel the country (8) | ||
| Autobahns | ||
| Major roads in the USA (8) | ||
| US motorways (8) | ||
| Routes without tolls | LA Times Daily | 12 Mar 2023 |
| Most interstates | ||
| Routes without tolls | ||
| Routes without tollbooths | ||
| Roads with no tolls | ||
| Cloverleaf locales |