Portal:Highway Classifications

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Highway Classifications Primer

Freeway/Expressway Classifications

  • Limited and fully-controlled access
  • high speed
  • full grade separations
  • No tolling allowed
  • Standard 12 ft lane width
Class Distance Between Interchanges Minimum Paved Shoulder Widths Minimum Median Width (total) Minimum Paved Median Lane Widths Minimum Number of Through Lanes Illuminated On/Off Ramps
F1 Rural 2 Mi 10 ft 36 ft 3 ft (6 feet with jersey barrier) 2 lanes each way optional
F1 Urban 1 Mi 12 ft 36 ft (or 0 with jersey barrier) 6 ft (10 feet with jersey barrier) 2 lanes each way required
F2 Rural 2 mi 12 ft 36 ft (or 0 with jersey barrier) 6 ft (10 feet with jersey barrier) 3 lanes each way optional
F2 Urban 1 mi 12 ft 36 ft (or 0 with jersey barrier) 6 ft (10 feet with jersey barrier) 3 lanes each way required

Tollway/Expressway Classifications

  • same as Freeway Classifications but with the allowance of tolling or e-tolling

Highway/Expressway Classifications

  • Limited and partially controlled access
  • high speed
  • at-grade intersections

County Highway Classifications

Local Street Classifications