Which concept involves measuring how an environment’s features influence the ease of movement?

• A. Perceptual-motor coordination
• B. Affordance
• C. Environmental flow
• D. Motor learning

Answer: (B)

Affordances describe the action possibilities the environment offers to a traveler, given their abilities. When you assess how easy it is to move through a space, you’re evaluating those environmental affordances—the features that enable or impede movement. In orientation and mobility practice, this means looking at aspects like corridor width, surface texture, curb cuts, lighting, and obstacles to see how they make travel smoother or more challenging and to determine what adjustments would improve accessibility. Perceptual-motor coordination is about how perception and movement are integrated during an action, motor learning is about acquiring new movement skills through practice, and environmental flow refers to overall movement dynamics in a space but doesn’t specifically capture the environment’s offered action possibilities.