Reverse Curve (3 lanes) (W1-4c)

Temporary Traffic Control sign

W1-4c — Reverse Curve (3 lanes)

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Sign information

Federal designation: W1-4c
Category: Temporary Traffic Control
Device type: Sign
Shape: Diamond / rectangle for plaque
Background: Orange
MUTCD reference: §6H.30 • Table 6H-1
MUTCD reference: Part 6; see sign-specific TTC provisions

Size / fabrication

Conventional Road: 36 x 36 in.
Freeway / Expressway: 48 x 48 in.
Minimum: 30 x 30 in.

Reference: §6H.30 • Table 6H-1

FHWA Standard Highway Signs

Dimensioned layout

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Drawing units: inches (in.) unless noted on the sheet.

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Application & sources

Used in temporary traffic-control and work-zone applications when applicable.

FHWA MUTCD source · FHWA Standard Highway Signs source