Portable Track Geometry Measurement System

铁路事故可以采取多种形式，并可能导致许多不同类型的干预，从临时速度限制到全面关闭轨道。许多事故都是由轨道损坏引起的，为了消除任何速度限制或轨道关闭，工程师需要确信轨道处于安全状态。因此，在发生多宗怀疑路轨受损或路轨已进行维修的事故后，通常的做法是要求路轨记录车在路轨上行驶，然后才容许客运或货运车辆再次行驶。然而，这些车辆的可用性可能会导致线路重新开放或取消速度限制的严重延迟。MoniRail开发了一种可永久安装在客运车辆上的在线轨道监控系统，目前正在苏格兰的Network Rail（NR）进行试验，并安装在HS 1\上的2辆欧洲之星车辆上。永久系统的一个潜在用例是更快地取消速度限制。然而，即使采用固定的解决方案，也可能出现延迟，因为轨道监控系统可能只安装在所有车辆的1/3至1/2上，该项目旨在通过为轨道工程师提供有史以来第一个便携式动态轨道几何测量系统来克服这些延迟，该系统将永久性解决方案修改为可以临时固定到车辆上的便携式解决方案沿着的是线路旁传感器阵列，其可以向工程师提供附加的安全关键轨道信息。因此，该解决方案将为轨道工程师提供即时的轨道信息，从而可以做出关于轨道安全性以及可以在多大程度上解除速度限制或重新开放线路的明智决策。

Rail incidents can take many forms and can results in many different types of intervention from temporary speed restrictions to full track closures. Many incidents either result from or cause track damage and in order to remove any speed restrictions or track closures engineers need to be confident that the track is in a safe condition. It is therefore common practice after many incidents where track damage is suspected or track repairs have been undertaken for Track Recording Vehicles (TRVs) to be required to run the track before passenger or freight vehicles are allowed to run the line again. However, the availability of these vehicles can cause significant delays to line reopening or removal of speed restrictions.MoniRail has developed an in-service track monitoring system that can be permanently fitted to passenger vehicles and is currently on trial with Network Rail (NR) in Scotland and also fitted to 2 Eurostar vehicles on HS1\. One potential use-case for the permanent system is for speedier removal of speed restrictions. However, even with the fixed solution delays are likely as track monitoring systems are only likely to be fitted to 1/3 to 1/2 of all vehicles, approx 1500 of 5100 vehicles.This project aims to overcome these delays by providing track engineers with the first ever portable dynamic track geometry measurement system by modifying the permanent solution into a portable one that can be temporarily fixed to vehicles along with a lineside sensor array that can provide additional safety critical track information to the engineer. This solution will therefore provide immediate track information to track engineers such that can make informed decisions about the safety of the track and to what extent speed restrictions can be lifted or line re-opened.