Transport for London – LINE DIAGRAM STANDARD 2025

Description

This 22-page official ‘Line Diagram Standard, Issue 4’ from Transport for London, published in January 2025, is a vital and current guide for anyone creating line diagrams within the extensive TfL information system. It underscores TfL’s commitment to clear, consistent, and user-friendly public transport information, directly impacting how millions navigate London’s networks daily. As a comprehensive and highly visual document, it meticulously details everything from typography (Johnston 100 Medium) and mode-specific color palettes (Pantone and NCS references included), to precise measurements for line thickness, radii, angles, and intricate interchange elements. This standard ensures brand consistency and operational clarity across all TfL line diagram applications, serving as the definitive resource endorsed by the Mayor of London.