A routing method and system for three-dimensional reconstruction and expansion of expressways based on restrictive factors

Abstract

The present invention relates to a method and system for three-dimensional reconstruction and expansion of highways based on limiting factors. The limiting factors are taken as important control factors in route design, and the design process of the three-dimensional reconstruction and expansion mode is refined, and designers A variety of horizontal, vertical and horizontal schemes can be obtained according to the established design steps, and then a variety of comprehensive and better design schemes can be screened out according to the design principles of the horizontal, vertical and horizontal schemes and the relevant provisions of the design specifications. The design idea of ​​this alignment method is clear, and the requirements for the design experience of the designer are relatively low. During the design process, no comprehensive and better design scheme will be missed. The scheme obtained after multiple screenings tends to be close to the best scheme of the project. , which is conducive to the design of a comprehensive horizontal and vertical horizontal scheme with low engineering cost, small demolition area, and small construction impact.

Description

technical field [0001] The invention relates to a route comprehensive design method and system for expressway three-dimensional reconstruction and expansion, and belongs to the field of route design for highway reconstruction and expansion. Background technique [0002] With the development of the urban economy and the expansion of the city scale, the expressway originally built on the periphery of the city has gradually become a part of the urban area. The traffic volume on expressways in urbanized areas is huge, and all kinds of traffic are mixed. It is necessary to renovate and expand expressways to increase the number of lanes of expressways. Since the land occupation width of the plane widening form is large, and the amount of demolition on both sides is also large, the three-dimensional reconstruction and expansion form can be selected when the reconstruction and expansion plan is determined. [0003] The definition of the three-dimensional reconstruction and expansio...

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Problems solved by technology

[0006] Aiming at the above-mentioned technical problems, the present invention proposes a routing method for three-dimensional reconstruction and expansion of expressways based on limiting factors, which solves the problems of complex horizontal and vertical and horizontal design in traditional route design methods, and easily misses some comprehensive and optimal solutions. The route design of the three-dimensional reconstruction and expansion mode of the highway provides a new solution. The present invention takes the limiting factor as an important control factor in the route design, which is beneficial to design a comprehensive and better flat vertical and horizontal structure with low engineering cost, small demolition area, and small construction impact. Program

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