城市化背景下公路隧道兼顾慢行交通功能的方案研究

Study on the Scheme Road Tunnel Compatible with Non-motorized Traffic during Urbanization

我国城市化水平已经超过50%,而且仍在不断提高中.为了解决经济发达地区机动车与非机动车、行人之间在路权分配上的矛盾,提出了3种设置方案,即新建“非机动车+行人”专用隧道(方案1)、同隧道分孔设置“非机动车+行人”通道(方案2)、同隧道设置非机动车道并加强通风(方案3),并从技术、经济、安全方面进行了综合比较.研究结论为:对双向四车道隧道宜采用方案1,对于双向六车道隧道宜采用方案3.最后,从隧道平纵指标、通风系统、照明系统、交通安全等方面对推荐方案的设置要点做了介绍.

China's urbanization level has exceeded 50%,and is still improving.In order to solvethe contradiction between motor vehicles,non-motor vehicles and pedestrians in the economically developed areas,three kinds of setting schemes are put forward,namely,the new"non-motor vehicle+pedestrian"special tunnel(scheme 1),the"non-motor vehicle+pedestrian"passageway(scheme 2)with the tunnel perforation,the non-motor lane with the tunnel and the enhanced ventilation(scheme 3).A comprehensive comparison is made in terms of technology,economy and safety.It is concluded that scheme 1 should be adopted for two-way four-lane tunnel and scheme 3 for two-way six-lane tunnel.Finally,the key points of the recommended scheme are introduced from the aspects of tunnel longitudinal and horizontal index,ventilation system,lighting system and traffic safety.