The Role of Ergonomic Design in Highway Infrastructure Enhancing Driver Response Times and Reducing Accidents

This study investigates the relationship between ergonomic highway design and safety outcomes through analysis of 500 km of highway corridors and 3,456 accidents over five years. Using mixed methods combining geometric measurements, driver response studies, and accident data analysis, we establish empirical relationships between design parameters and driver performance. Results indicate that sharp curves R 300m increase response times by 68 and accident rates by 224 , inadequate signage placement reduces appropriate driver responses from 91 to 52 , and substandard pavement markings increase lane departures by 317 . Multiple regression models explain 71 of accident variance through measurable design parameters. The study proposes evidence based recommendations projecting 40 50 accident reduction through systematic ergonomic improvements with benefit cost ratios of 4 1 to 40 1. Humaira Bilal Bhat | Er. Ajay Vikram "The Role of Ergonomic Design in Highway Infrastructure: Enhancing Driver Response Times and Reducing Accidents" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-9 | Issue-6 , December 2025, URL: https://www.ijtsrd.com/papers/ijtsrd98811.pdf Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/98811/the-role-of-ergonomic-design-in-highway-infrastructure-enhancing-driver-response-times-and-reducing-accidents/humaira-bilal-bhat