| 释义 |
- Canada
- China
- India
- Japan
- United States
The following highways are numbered 315: Canada- Manitoba Provincial Road 315
- New Brunswick Route 315
- Prince Edward Island Route 315
- Quebec Route 315
China- China National Highway 315
India- National Highway 315 (India)
JapanUnited States- Interstate 315 (unsigned)
- Arkansas Highway 315
- Connecticut Route 315
- Florida State Road 315 (former)
- Georgia State Route 315
- Iowa Highway 315 (former)
- Kentucky Route 315
- Louisiana Highway 315
- Maryland Route 315
- Maryland Route 315 (former)
- Mississippi Highway 315
- Montana Secondary Highway 315
- New Mexico State Road 315
- New York:
- New York State Route 315
- County Route 315 (Erie County, New York)
- Ohio State Route 315
- Ohio State Route 315C (unsigned)
- Pennsylvania Route 315
- South Carolina Highway 315
- Tennessee State Route 315
- Texas:
- Texas State Highway 315
- Farm to Market Road 315
- Utah State Route 315
- Vermont Route 315
- Virginia State Route 315
- Wyoming Highway 315
Other areas:- U.S. Virgin Islands Highway 315
{{Roadindex|315}} |