State: National MUTCD (Default) California Texas South Carolina Colorado Other States Speed Limit (mph): Work Zone Distance (miles): Lane Width (feet): Roadway Type: Urban (≤ 40 mph) Rural (40–60 mph) Freeway (≥ 55 mph) Taper Type: Merging (Lane Closure) Shifting (Lane Shift) Shoulder Closure Work Zone Condition: Daytime Nighttime or Curves Include Buffer Space: Yes No Calculate Cones

Note: Calculations are based on MUTCD 2009 Edition. Verify with local regulations (e.g., CA MUTCD, TMUTCD). Use cones ≥ 28 inches for highways, ≥ 36 inches for freeways, with reflective bands.