The “Code of Practice for Road Signs”, established by the Indian Roads Congress (IRC), serves as the national benchmark governing the design, placement, and uniformity of all traffic control devices across Indian roads, particularly the National Highway network. This standard defines the engineering, visual, and positional attributes of traffic signs to ensure uniform driver interpretation and operational consistency across diverse roadway environments. Its primary objective is to enhance road safety, minimize driver confusion, and promote efficient traffic flow through a standardized visual communication system. The code classifies road signs into three distinct functional categories: (1) Mandatory signs – Addresses legal requirements and traffic regulations. (2) Cautionary signs – Addresses to Warn signs for drivers of potential hazards or changes in road/ subway/ highway conditions. (3) Informatory signs – A guide to direct and sahre generalized information to facilitate navigation. Each category is meticulously standardized for shape, color, typography, retroreflectivity, and mounting height, ensuring consistency under various lighting and environmental conditions. This uniformity enables a driver from any region to instantly recognize and respond to a sign’s message, reducing decision time and preventing accidents.