Related Clues:
- What "I" may indicate
- Course: Abbr
- Road no
- Google Maps offering: Abbr
- Travel plan (abbr.)
- Driver's assignment: Abbr
- Delivery person's assignment: Abbr
- GPS datum
- Interstate, e.g.: Abbr
- Postal worker's beat: Abbr
- AAA offering: Abbr
- No. on a road sign
- Delivery path, for short
- U.P.S. driver's assignment: Abbr
- Something a GPS recalculates: Abbr