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我国即将迎来一个多车道高速公路扩建的高峰期,由于受扩建技术经验等限制,目前对多车道高速公路交通安全因素以及改扩建工程的实际需要考虑较少,安全适应性差,不能完全满足安全运行的需求。结合研究成果,以佛开高速公路改扩建工程为依托,针对同向分离式路基、超高缓和段、互通立交出口、中央分隔带开口防护和标志视认性等安全问题,提出了针对多车道高速公路改扩建工程安全适应性保障技术。
Our country is about to usher in the peak of the expansion of a multi-lane expressway. Due to the limited technical experience of expansion, the current traffic safety factors of multi-lane expressways and the actual needs of reconstruction and extension projects are less considered, and their safety adaptability is poor, which can not fully meet the requirements of safety Requirements for operation. Combined with the research results, based on the reconstruction and expansion project of Fokai Expressway, aiming at the safety problems of separated subgrade, superhigh-ease section, interchange of interchange, opening protection of central divider belt and sign visibility, Safety Adaptation Guarantee Technology for Reconstruction and Expansion Project of Expressway.