Urban planners have long relied on crash statistics to assess safety, but these reactive measures fail to capture the moment-to-moment stress that deters cyclists long before an accident occurs. By combining physiological sensors with Neon eye tracking, researchers have developed a novel framework that correlates gaze behavior, such as blink rate spikes, with environmental triggers to create dynamic "stress maps" of the city. Read the full digest to see how this multimodal approach is transforming real-world biometric data into safer, simulation-based infrastructure design.