MUTCD Work Zone Setup Calculator
- Road type
- Speed
- Lateral offset
- Taper type
IMPORTANT • EDUCATIONAL & REFERENCE ESTIMATE ONLY: This calculation provides preliminary guidance based on FHWA MUTCD 11th Edition (Rev 1, Dec 2025) and does not constitute an approved traffic-control plan or certified engineering design. All dimensions and taper lengths must be verified by a qualified traffic engineer against site-specific conditions and local standards. Independent reference tool not affiliated with FHWA/USDOT. Full legal terms: mutcdsearch.com/disclaimer/
Educational Guidance • Reference Estimate
Your setup
EDUCATIONAL GUIDANCE • REFERENCE ESTIMATE ONLY
These calculations provide preliminary reference estimates based on FHWA MUTCD 11th Edition (Rev 1, Dec 2025) guidelines and do not constitute approved engineering designs or traffic-control plans. Results must be independently verified by a qualified traffic engineer against site conditions and local specifications before use. Full legal disclaimer →
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.
MUTCDSearch Traffic Engineering Suite
Conforming to FHWA MUTCD 11th Edition Rev 1
IMPORTANT — FOR INFORMATIONAL AND EDUCATIONAL USE ONLY
MUTCDSearch.com provides general educational information, reference materials, and preliminary calculations. These tools are not intended for direct use in roadway construction, traffic-control installations, engineering design, or other safety-critical applications.
Results may not account for site-specific conditions, current regulations, state or local requirements, engineering exceptions, or changes to applicable standards.
All calculations, dimensions, spacing recommendations, and regulatory references must be independently verified against the current official MUTCD (FHWA 11th Edition with Revision 1, December 2025) and applicable state and local requirements.
Consult a qualified traffic engineer, certified traffic-control professional, or appropriate governmental authority before designing, approving, purchasing equipment for, or implementing any traffic-control installation.
MUTCDSearch.com is an independent reference website and is not affiliated with, endorsed by, or authorized by FHWA or the U.S. Department of Transportation.
Notice: This disclaimer and terms should be reviewed by qualified legal counsel in your jurisdiction before relying on them for legal protection or statutory compliance.