Jock Kinneir, Margaret Calvert, Simon Morgan

Primary route sign for British roadways

Designed 1957–1967

Retroreflective sign face sheeting, composite substrate, aluminum alloy support channels

Not on view

Prior to the 1960s, British road signs were a confusingly inconsistent collection of various sizes, symbols, fonts, and colors. Kinneir and Calvert developed a standardized signage system with pictograms, colors, directional arrows, and a custom font named Transport—all designed from the driver’s point of view. They developed instructions detailing the spacing and dimensions of the visual elements in any sign, so local authorities could make consistent signs without the help of designers. By 1965, the uniform signage system appeared on all A-roads—major roads between regional towns and cities—throughout the United Kingdom. Kinneir and Calvert’s system soon expanded to every road type.

Gallery label from

Pirouette: Turning Points in Design, January 26, 2025–November 15, 2025

Manufacturer RBLI - Royal British Legion Industries Limited
Medium Retroreflective sign face sheeting, composite substrate, aluminum alloy support channels
Dimensions 60 × 70 × 1 1/8" (152.4 × 177.8 × 2.9 cm)
Credit Committee on Architecture and Design Funds
Object number 305.2020
Department Architecture & Design

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