Enhancing Pedestrian Safety through Infrastructure, Behavioral, and Technological Interventions: A Structured Review of Urban Transportation Safety Measures

Pedestrian safety remains a major transportation concern as urbanization, motorized traffic growth, and increasing roadway complexity continue to increase pedestrian crashes and injury risks. This study presents a structured review of pedestrian safety interventions by synthesizing findings from 44 studies related to infrastructure-based treatments, behavioral factors, technological applications, and demographic influences. The review focuses on Pedestrian Countdown Timers (PCTs), Pedestrian Crossing Signals (PCS), pavement markings, traffic signs, traffic calming measures, distracted pedestrian and driver behavior, and age-related safety differences. A conceptual framework was developed to organize the reviewed literature around three interacting dimensions: infrastructure-based interventions, behavioral factors, and traffic environment conditions. The findings indicate that traffic calming and speed management measures provide the most consistent safety benefits by reducing vehicle speeds, improving driver yielding behavior, and lowering crash severity. PCTs generally improve pedestrian decision-making and reduce uncertainty at crossings, while PCS show mixed effects because their effectiveness depends on signal timing, pedestrian compliance, driver response, traffic volume, and intersection complexity. Pavement markings and traffic signs improve visibility and guidance, but their performance varies by roadway type, lighting condition, maintenance quality, and traffic environment. Behavioral factors, particularly mobile phone distraction and driver inattention, remain critical challenges that can reduce the effectiveness of infrastructure-based treatments. The review concludes that pedestrian safety is best addressed through integrated, context-specific strategies that combine engineering measures, behavioral interventions, technological applications, and planning approaches. These findings provide practical guidance for transportation planners, policymakers, and safety professionals seeking to reduce pedestrian injuries and fatalities in urban environments.