With the rapid urbanization and development of metropolises, urban road tunnels have been constructed at an increasing rate, significantly alleviating urban traffic pressure, and improving urban resilience. Fire hazards have become a major threat to modern road tunnels due to the growing popularity of electric vehicles and high-density transportation of goods, particularly flammable materials. Asphalt pavements, as an essential component of road tunnels, may release harmful effluences and smoke under high temperatures, exacerbating the fire and adding risk to life safety. It is hence critical to investigate fire-retarding asphalt materials and their potential use in urban road tunnels pavements. This paper provides a comprehensive review of fire-retarding asphalt pavements for urban road tunnel pavements. The review covers tunnel fire generation mechanisms, evaluation methods, flame retardants for asphalt pavements, and recent developments in flame retardant technologies. By investigating these aspects, this paper aims to better understand the flammability of asphalt mixtures and asphalt pavements in urban road tunnels, promote the research of flame-retardant technology, and ultimately reduce the damage and loss caused by asphalt road tunnel fire accidents. Additionally, this study identifies the limitations of current research and provides an outlook for future research to contribute to the resilience of urban road tunnel structures and the longer service life of asphalt pavement in semi-closed road tunnels.

随着城市化进程的加快和大都市的发展，城市道路隧道建设速度不断加快，显着缓解了城市交通压力，提高了城市韧性。由于电动汽车的日益普及和货物（尤其是易燃材料）的高密度运输，火灾隐患已成为现代公路隧道的主要威胁。沥青路面作为公路隧道的重要组成部分，在高温下可能会释放有害废气和烟雾，加剧火灾并增加生命安全风险。因此，研究阻燃沥青材料及其在城市公路隧道路面中的潜在用途至关重要。本文对城市公路隧道路面阻燃沥青路面进行了全面综述。综述内容涵盖隧道火灾发生机制、评价方法、沥青路面阻燃剂以及阻燃技术的最新进展。通过对这些方面的调查，旨在更好地了解城市公路隧道沥青混合料和沥青路面的可燃性，推动阻燃技术的研究，最终减少沥青公路隧道火灾事故造成的损害和损失。此外，本研究还指出了当前研究的局限性，并为未来的研究提供了展望，以促进城市公路隧道结构的弹性和延长半封闭公路隧道中沥青路面的使用寿命。