Development of automated track layout design tools

“拟议轨道定线的路径受到周围地形特征的限制，例如建筑物的净空，以及对轨道维修和车站间行车时间有影响的几何特征。轨道几何形状和间隙特征之间的关系是顺应性轨道布局设计的关键;如果列车的路径可能与结构接触，则不能使用满足列车性能要求的轨道对准，并且如果轨道几何形状不能实现目标站间行程时间，则没有间隙侵犯的对准也是不可用的。如今，大多数英国铁路基础设施项目使用单独的轨道几何设计和净空评估软件系统作为轨道布局设计过程的一部分。因此，需要一名工程师在这两个系统之间手动传输数据，分析排雷结果，并相应修改轨道布局。需要人工干预的过程最终将限制自动化轨道布局设计系统的开发范围。本项目旨在开发一套工具，使数字测量过程能够在3D CAD环境中进行。将净空评估和轨道设计过程结合在一起，将为自动化轨道布局设计提供一个平台，从而能够开发算法脚本，从而可以按程序设计、检查和修改轨道线形几何形状。"

"The path of a proposed track alignment is constrained by surrounding topographical features, such as clearance to structures, as well as geometric features that have an impact on track maintenance and inter-station journey times. The relationship between track geometry and clearance features is key to a compliant track layout design; a track alignment that meets train performance requirements can not be used if the path of a train is likely to come into contact with a structure, and an alignment that is free of clearance infringements is also unusable if the track geometry is not capable of achieving target inter-station journey times.Today, the majority of UK rail infrastructure projects use separate track geometry design and clearance assessment software systems as part of the track layout design process. As a result, an engineer is required to manually transfer data between these two systems, analyse clearance results and revise the track layout accordingly. Processes that require human intervention will ultimately limit the scope for development of automated track layout design systems.This project aims to develop a suite of tools that will enable the digital gauging process to be undertaken within the 3D CAD environment. Bringing the clearance assessment and track design processes together will provide a platform for automated track layout design, enabling development of algorithmic scripts that can procedurally design, check and revise track alignment geometry."