It sounds like you're referring to a well-regarded reference in airport operations and ground handling. The most commonly cited for that title is actually:
The handbook outlines strict color rules to provide immediate visual cues on the tarmac: Apron Markings Signs Handbook
The , primarily published by Airports Council International (ACI) , serves as a global guide to standardizing visual aids in the most congested and complex areas of an airport: the aprons. Now in its Third Edition (2017) , the handbook provides best practices for the design, application, and maintenance of paint markings and signs that supplement ICAO Annex 14 standards. Core Purpose and Scope It sounds like you're referring to a well-regarded
The airport apron is a critical area where aircraft are parked, serviced, and maneuvered. To ensure safe and efficient operations, clear and effective signage is essential. The Apron Markings Signs Handbook provides guidance on the design, installation, and maintenance of signs on the airport apron. Core Purpose and Scope The airport apron is
: Endorses weather-resistant paints and thermoplastic materials that handle extreme weight, chemical spills (jet fuel), and UV radiation.