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Home 9 HOFs in practice 9 Category: HOF in Traffic Management

HOF in Traffic Management

About this topic

Introduction

Traffic management systems (TMS) provide a number of interconnected systems which help train controllers or signallers to manage and implement railway timetables. They help the controllers see where trains are expected to arrive at the same point at the same time and provide data on how to prioritise movements. The resulting decision is passed to an automated system to implement.  

Relevance to rail

TMS introduce a high degree of automation into railway signalling and control, and as such they present several human factors challenges to be managed. Some examples of these challenges are: the potential change to roles and responsibilities as new tasks of replanning the train service is introduced while manual routing setting is usually vastly reduced; the display of information on the human machine interfaces (HMIs) can be quite complex; and often the benefits of the automation are over-estimated at the start of the project but difficulties with data and interfacing to legacy systems mean they cannot be practically achieved.  

Approaches and models

A Human Factors Integration or Assurance process can help identify and mitigate the human factors issues as they arise over the lifecycle of the project. These processes generally require specialist human factors input and the consideration of human factors at the start of the project is critical. The issues covered might span from analysing how the new roles will interact and communicate with each other, to predicting the workload for the end users and hence how many positions will be needed, to assessing the usability of the new HMIs, or to identifying the training needs of the new users.  

  

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