Abstract
The occurrence of fire in road tunnels poses high risks to the life and health of people. The resulting smoke, fire gases and high temperatures can be the cause of poisoning and burns. Additionally, dense smoke can significantly reduce visibility, which can result in difficulties during evacuation. This paper aims to investigate the effect of specific wavelengths of visible light on visibility in smoke conditions and to determine the wavelength of light (colour) that can improve visibility in smoke-filled environments. A rubber mixture with polyester and polyamide spacers was selected as a combustible material in order to obtain more realistic conditions with respect to smoke parameters. These plastics are commonly used, among others, in tires, elements of engine plating, upholstery or truck trailer covers. Then, in a test fire chamber laboratory, the colour of light (wavelength) was determined, obtaining the highest transmittance value, understood as the amount of radiation transmitted through the substance. It has been shown that devices emitting a light wave of a specific length can significantly improve visibility in smoke-filled environment.
Highlights
The fire safety problem in traffic tunnels is the subject of extensive research and analysis presented in many scientific publications
A fire in traffic tunnels is always associated with an increase in the risk of people and emergency services operating in the area being trapped inside
Based on the research results, their analysis and consulting experts opinions, it was stated that the wavelength of light has a significant impacts on visibility in smoke conditions
Summary
The fire safety problem in traffic tunnels is the subject of extensive research and analysis presented in many scientific publications. The key research directions include the analyses of tunnel ventilation performance in the event of a fire and the analyses of fire smoke spread [1,2,3,4]. Other major directions include technical solutions for reducing smoke density in the tunnel interiors and improving the effectiveness of rescue operations [5,6,7,8], organizational solutions and procedures aimed at reducing risk level [9,10] or analyses the effectiveness of both self-evacuation and rescue operations [1,11,12,13]. The smoke produced during a fire can significantly reduce visibility and, impede substantially effective evacuation.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
