Technical Workshop on Interchange Design Concepts For Sustainable Development in China 卓有成效发展的中国立交道观念的研讨会 Beijing Highway Design Research Institute 地点：北京公路设计研究院 Wednesday, April 10, 2002 2002 年 4 月10 日， 星期三 David H. Roper, P.E. Roper and Associates, Inc. (USA)

Tier 1 Roadway System 例一 车道系统 Function: 功能 Exit/enter freeway system through toll plaza 收费站进出口通道系统 Access to Tier 2 Roadway System 通往例二系统 Direct connection for line-haul buses to access on-line bus station, re-enter freeway 为运送公共汽车直接通往始发站的通道

Tier 1 Roadway System, con’d. 例一车道系统，续 Character of Roadways： 道路状况： Exit/entrance ramps to/from toll plaza 进出收费站平交道 Direct connector to exit freeway, access on-line bus station, re-enter freeway 直通出口的通道，公共汽车始发站通道，重新驶入通道

Tier 1 Roadway System, con’d. 例一车道系统，续 Design Standards for Geometric Features, Signing, Markings： 采用几何图形特征，符号，标记的设计标准： High design speeds 高速设计标准 Freeway/ramp design standards, as applicable 适用於通道/平交道设计标准

Tier 2 Roadway System 例二通道系统 Function: 功能： For “internal traffic” (ie, traffic which has exited freeway but not the toll plaza, choosing to access services while remaining within the tolled roadway system) 供“内部车辆” (例如，已经驶出通道但还没有进入收费站，及在离收费道路系统的一段路程之内选择通往服务区域的通道)

Tier 2 Roadway System, con’d. 例二车道系统，续 Character of Roadways： 车道状况： Roundabout 环形车道 exits/entrances directly into/from service station and parking lots 直接往返於服务站和停车区进出口的道路

Tier 2 Roadway System, con’d. 例二车道系统，续 Design Standards for Geometric Features, Signing, Markings： 采用几何图形特征，符号，标记的设计标准： Moderate design speeds 中等速度设计标准 Roundabout 环形车道 local roads design standards, as applicable 适用於市区内道路的设计标准

Tier 3 Roadway System 例三车道系统 Function (for local traffic): 功能 (市内车辆) Provides routes by which to by-pass entire interchange complex 筑一条进出市区直接通往复杂的立交道的路线 Access to all developments/services within the interchange 在立交道范围内要设施所有的发展空间和服务项目 Access to all developments/services located adjacent to the interchange 通往立交道邻近的地方要设施所有的发展空间和服务项目

Tier 3 Roadway System, con’d. 例三车道系统，续 Character of Roadways 道路状况 Local roads, driveway type entrances/exits 市区道路，居民进出道路的类型

Tier 3 Roadway System, con’d. 例三 车道系统，续 Design Standards for Geometric Features, Signals, Signing, Markings： 采用几何图形特征，符号，标记的设计标准： Moderate/Low Design Speeds 中等/低速设计 Local road design standards, as applicable 适用於市区道路设计标准