What is BS EN 13848-6 about?  
BS EN 13848-6 is the sixth part in the multi-series of European standards applicable to railway applications.
BS EN 13848-6 characterizes the quality of track geometry based on parameters defined in EN 13848-1 and specify the different track geometry classes which should be considered.
BS EN 13848-6 covers the following topics:
- Description of track geometry quality
- Classification of track quality according to track geometry parameters
- Considerations on how this classification can be used
BS EN 13848-6 applies to high-speed and conventional lines of 1 435 mm and wider gauge. BS EN 13848-6 forms an integral part of the EN 13848 series.
Who is BS EN 13848-6 for? 
BS EN 13848-6 on track geometry quality is relevant to: 
- Manufacturers and suppliers of track recording vehicles/cars
- Manufacturers and suppliers of railway infrastructure equipment
- Railway management authorities
- Train operating companies (TOCs)
- Inspection and testing department
- Site supervisors  
- Railway inspection and testing departments
- Mechanical engineers
Why should you use BS EN 13848-6?  
Track recording cars or track geometry cars are used to check the geometric parameters of the railway track. In this regard, when measuring a track, track geometry recording systems help produce consistent and comparable results, regardless of the measuring speed and direction of travel. The quality of track geometry is evaluated for a variety of reasons. Different types of analysis may be required, and it is advised that they be classified into different degrees of aggregation based on the intended use of the study. Depending on the level of aggregation utilised, several TQIs can be used to characterise track geometry quality.
BS EN 13848-6 characterises track geometry quality based on parameters defined in EN 13848-1 and specifies the various track geometry classes that should be examined. This can assist you in measuring results, which can be used for tracking quality monitoring, maintenance planning, and can contribute to the process of safety assurance.
BS EN 13848-6 can assist you in standardising the way track geometry quality is assessed in order to allow safe and cost-effective railway traffic by focusing on the functional needs of both the track and the vehicle. This is to assist you in establishing track quality classes and determining appropriate limit values.
Thus, BS EN 13848-6 allows for the identification of defects that need attention. This defect review system and resulting indication on track quality index can help prevent derailment, thus ensuring safety and reliability for the overall railway infrastructure.
