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.

Set up the roadway

Choose the conditions before work begins.

Calculated field reference

Your setup

Calculated taper length

245 ft Merging taper
Buffer 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

A100 ft
B100 ft
C100 ft
Formula usedL = W × S² ÷ 60 = 12 × 35² ÷ 60
Traffic direction
C100 ft
B100 ft
A100 ft
Taper245 ft
Buffer250 ft
Work area
Quick reference only—not an engineered traffic control plan.

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.