The Safe System paradigm represents a pivot away from the “Responsibility” paradigm, which emerged in the 1980s in the United States. Whereas until recently, speed was considered safe—assuming drivers were responsible—and other road users were generally thought to be responsible for their own safety and the safety of others, the Safe System paradigm recognizes the fallibility of humans and places greater responsibility on system operators for keeping road users safe and protected.
National Academies of Sciences, Engineering, and Medicine. 2025. Applying the Safe System Approach to Transportation Planning, Design, and Operations. Washington, DC: The National Academies Press.
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