FHWA Part 6 field reference
MUTCD Work Zone Setup Calculator
Estimate taper length, warning-sign spacing, buffer reference, and device spacing from the current MUTCD.
MUTCD Work Zone Setup Calculator
- Road type
- Speed
- Lateral offset
- Taper type
Calculated field reference
Your setup
Calculated taper length
245 ft Merging taperBuffer space reference250 ftStopping sight distance · Table 6B-2
Max. taper device spacing35 ftGuidance · 1 × speed
Max. tangent device spacing70 ftGuidance · 2 × speed
Advance warning sign spacing
Approximate guidance · Table 6B-1
Formula used
L = W × S² ÷ 60 = 12 × 35² ÷ 60Traffic direction →
C100 ft
B100 ft
A100 ft
Taper245 ft
Buffer250 ft
Work area
Reference basis
Official sources
FHWA MUTCD 11th Edition with Revision 1 (December 2025). Calculations use Tables 6B-1 through 6B-4 and Section 6K.01. Values are guidance to be applied with engineering judgment and adjusted for field conditions.