Insightful, evidence‑based, and forward‑looking, Flashing Amber Arrow Signal: Synthesis of Practice is an essential resource for transportation professionals, policymakers, and researchers shaping the future of Canadian road safety. Drawing on a comprehensive literature review, expert interviews, a national survey of Canadian jurisdictions, and focus group discussions, this report examines the potential role of the Flashing Amber (or Yellow) Arrow (FAA) in Canada.
Across the United States, the FAA has transformed how drivers navigate permissive turns, reducing confusion, improving safety, and enhancing intersection efficiency. Yet despite its widespread adoption south of the border, this signal display has not yet been adopted in Canadian practice. The publication Flashing Amber Arrow Signal: Synthesis of Practice explores why — and what Canada can learn from the U.S. experience.
The publication synthesizes evidence showing that U.S. jurisdictions have largely benefited from FAA implementation, with research demonstrating improved driver comprehension, reduced collision rates when replacing traditional permissive indications, and better pedestrian safety through increased driver yielding. Operational advantages — such as flexible phasing and mitigation of the “yellow trap” — further underscore the FAA’s value. It also highlights key differences in Canadian traffic control practices to be addressed before adoption. Existing use of flashing green arrows and interest in applying FAA signals in shared lanes present unique challenges not encountered in the U.S. context. Finally, recommended next steps are offered, including formalizing steady green arrows in the Manual of Uniform Traffic Control Devices for Canada and advancing toward targeted testing and pilot projects.
