A highly intelligent interchange system and a design method thereof

Abstract

The invention discloses a highly intelligent interchange system, which comprises a ground level intersection layer, a traffic main line layer and a span bridge intersection layer in order from bottomto top. A plurality of branch ramps are arranged between the traffic main line layer and the span bridge intersection layer, and the branch ramp is used as a left-turn lane of the traffic main line layer. A highly intelligent interchange design method comprises the following steps: S100, predicting traffic flow and selecting a suitable interchange type by analyzing the functional status and function of the interchange in the urban road network, the road grade, the current topography and the land use restriction conditions; S200, through the analysis of traffic flow, two interchange schemes aremade, and the fuzzy comprehensive evaluation method is adopted to evaluate the two interchange schemes respectively; S300, selecting an interchange scheme, reasonably determining the layout positionof the interchange in the scheme, and carrying out overall layout planning on the interchange, so as to ensure that the interchange scheme plays a greater role in the road network.

Description

Technical field [0001] The invention relates to the technical field of interchange planning and design, in particular to a highly intelligent interchange system and design method. Background technique [0002] With the rapid development of cities, the traffic volume is increasing day by day. In the traffic design of urban highways and highways, highways and arterial roads, in order to meet the operating speed of road applications and ensure the efficient distribution of traffic, it is often necessary to use interchanges. The interchange is an indispensable part of the expressway, and it is also one of the important structures of the expressway. It plays a pivotal role in the entire highway. The interchange technology is complex, diverse in form, large area, and high cost. The quality of the design plan will directly affect the technical level, investment, benefit, service level and driving safety of the project. Therefore, before the construction of the interchange, it is necessa...

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Problems solved by technology

[0002] With the rapid development of cities and the increasing traffic volume, in the traffic design of urban expressways and expressways, expressways and arterial roads, in order to meet the operating speed of road applications and ensure the efficient collection and distribution of traffic, it is often necessary to use interchanges Way, the interchange is an indispensable part of the expressway, and it is also one of the important structures of the expressway, which plays a pivotal role in the entire highway. The pros and cons of the design scheme will directly affect the technical level, investment, benefit, service level and driving safety of the project. Therefore, before the construction of the interchange, it is necessary to evaluate and analyze the scheme of the interchange and judge the scheme of the interchange. Whether it can play a greater role in the road network, and at the same time, avoid the trouble of finding out that there are deficiencies in the interchange scheme and making changes, resulting in greater construction costs. At present, the analysis of the interchange scheme is relatively simple, usually only for traffic Simple analysis and processing of traffic flow and geographical conditions is enough, often because the depth of analysis is not enough, there are some problems in the follow-up work process of interchanges, such as unreasonable spacing between interchanges, vehicles in the left-turn lane are easy to be separated from the straight lane Vehicles collide, and there are problems such as blind spots in the field of vision;

[0003] Moreover, the existing common interchanges usually set the slow traffic flow and the motor vehicle lane on the same level. Due to the existence of the slow traffic flow, the speed of the vehicles on the motor lane is often slower, and it will increase The probability of traffic safety accidents cannot guarantee the normal driving of vehicles on the interchange

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