eva‎luation of The Color Scheme Utilized in Emergency Exit Sings for Metro Design to Choose The Suitable Option

2/22/2026 12:00:00 AM

Given the critical role of safety signage in public transportation environments, this study aims to analyze an‎d redesign emergency exit signs in metro systems based on the principles of color psychology an‎d international safety stan‎dards. The research first examines the historical evolution of signs an‎d symbols, global safety regulations, an‎d the visual characteristics of signage in the Tehran Metro. Through comparative analysis an‎d field eva‎luations, the perceptual, legibility, an‎d psychological impacts of four primary colors—red, yellow, blue, an‎d green—were assessed under emergency conditions. The findings indicate that employing color combinations with appropriate contrast between background an‎d symbol enhances visual clarity, reduces passenger anxiety, an‎d facilitates more effective wayfinding during critical situations. Integrating theoretical insights with empirical data, the study proposes a context-specific model for optimizing the design of emergency exit signage within Iran’s metro network. This model offers practical implications for improving the overall safety an‎d operational efficiency of guidance an‎d warning systems in public transport infrastructures.

علائم ايمني , روانشناسي رنگ , خروج اضطراري , طراحي مترو , ايمني مسافران

safety Signage , Color Psychology , EmergencyExit , Metro Design , Passenger Safety

Sayyed Amirreza Hashemi

Habibollah Molatefi