Enhancing accessibility for people of all ages and abilities in public transit requires addressing physical and functional barriers, which is best achieved through universal design principles. Universal design ensures that transit stations are accessible to everyone, including those with disabilities, seniors, and children, by incorporating features like ramps, tactile paving, and clear signage. The APA’sAICP Certification Exam Content Outline(2022), under “Areas of Practice,” lists “universal design in transit infrastructure as a key strategy for accessibility, ensuring usability for all.” The APA’sPolicy Guide on Accessibility(2016) states, “Universal design principles, such as barrier-free access and inclusive design, are essential for making transit stations accessible to people of all ages and abilities.” Option A (discounted fares) addresses affordability, not physical access. Option B (free parking) encourages driving rather than transit use. Option D (congestion pricing) supports transit funding but does not directly improve accessibility. TheCPC Study Manual(2024) confirms that “universal design is the most effective way to enhance transit accessibility for diverse populations,” supporting option C.