Development of automated track layout design tools

“拟议的轨道路线受到周围地形特征的限制，例如与建筑物的间隙，以及对轨道维护和车站间行程时间有影响的几何特征。轨道几何形状与间隙特征之间的关系是柔性轨道布局设计的关键；如果列车的路线可能与建筑物接触，则不能使用符合列车性能要求的轨道路线；如果轨道几何形状不能达到目标站间行程时间，则没有间隙侵犯的轨道路线也不能使用。今天，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间隙评估软件系统作为轨道布局设计过程的一部分。因此，工程师需要在这两个系统之间手动传输数据，分析间隙结果并相应地修改轨道布局。需要人工干预的过程最终将限制自动轨道布局设计系统的发展范围。该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。将间隙评估和轨道设计过程结合在一起，将为自动轨道布局设计提供一个平台，使算法脚本的开发能够程序化地设计、检查和修改轨道对齐几何形状。”

"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."