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Preliminary planning utilities based on FHWA 11th Edition (Rev 1, Dec 2025) criteria. Reference & educational guidance only.
Calculate merging, shifting, and shoulder taper lengths, buffer distances, and maximum device spacing by speed and lane offset.
Launch Calculator →Look up official sign dimensions across road classes, Table 2C-3 advance warning placement distances, and Table 2A-5 retroreflectivity.
Launch Calculator →Interactive cone height selector, cone quantity estimator, 36″ vs 48″ sign area comparison, roll-up sign guide, and sheeting ratings.
Open Equipment Hub →Estimate aluminum stock sheet yield and sign blank cutting layouts, plus wet-film pavement marking paint gallon requirements.
Estimate Materials →Practical, engineer-reviewed guides covering sign designations, colors, shapes, 11th Edition rules, and search strategies.
Foundational guide to the 11th Edition MUTCD: functional classifications, retroreflectivity, and mounting rules.
Read guide → Step-by-StepDecode letter prefixes, family numbers, directional indicators, and supplemental plaque suffixes like P and S.
Read guide → Engineer & ContractorProven techniques to quickly locate compliant sign standards, FHWA vector artwork, and state supplements.
Read guide → Right-of-WayCompare R1-1 STOP, R1-2 YIELD, ALL-WAY plaques, multi-way stop criteria, and in-street pedestrian crossing rules.
Read guide → Design StandardsUnderstand the 13 standardized MUTCD background and legend colors and their strict regulatory purposes.
Read guide → Part 6 Temporary Traffic ControlOverview of orange construction warning signs, W20 lane closures, flagger signs, and portable sign stand rules.
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