This paper studies a very important sub - system of its - advanced public transportation system ( apts ) , this paper emphasizes on the part of bus transportation of this sub - system . the author summarizes a set of rather advanced plan that fixes in with current chinese conditions through introducing the current development of apts abroad ; it can fulfill the apts technique 本文就是研究智能交通系统中一个非常重要的子系统，先进的公共交通系统( apts ， advancedpublictransportationsystems )中的公共汽车运输部分的实现，论文通过研究目前国外的先进的公共交通系统技术的发展情况，总结出一套符合中国国情的公共汽车运输的先进的公共交通系统技术的实现方案。
Hong kong is a market with tremendous potential , have good advantage of joining the domestic market , linking up the overseas market , meanwhile , hong kong passenger bus transportation developing quite well , there have many passenger bus brands , high quality expected and also represent the developing direction of passenger bus in the future 四川作为西部开发的重要大省，正处于城市化和机动化高速发展阶段，客运线路的不断增加和客运量的增长促使客车需求量大幅度增长，年增长速度预计将达20 % 。
