| 释义 |
- Canada
- United States
The following roads are numbered 3A: Canada- Alberta Highway 3A
- British Columbia Highway 3A
- Manitoba Highway 3A
United States- Massachusetts Route 3A
- Nevada State Route 3A (former)
- New Hampshire Route 3A
- New York State Route 3A
- Oklahoma State Highway 3A
- Texas Park Road 3A
- Territories
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