What is BS EN 13848-5 - Quality levels of track geometry about?
BS EN 13848-5 defines the minimum requirements for the quality levels of track geometry and specifies the safety-related limits for each parameter as defined in EN 13848-1 and measured by any track geometry measurement system as defined in EN 13848-2, EN 13848-3, and EN 13848-4.
Note1: BS EN 13848-5 covers the following topics:
- Immediate action limits (IAL)
- Recommendations on tolerance levels for isolated defects
- The relative importance of parameters with respect to the vehicle behaviours
Note2: The necessity to measure, the frequency of measurements, and the selection of measured parameters are not covered by BS EN 13848-5.
Note3: BS EN 13848-5 applies to high-speed and conventional lines, including switches and crossings, of 1 435 mm and wider gauge railways provided that the vehicles operated.
Note4: BS EN 13848-5 on those lines comply with BS EN 14363 and other vehicle safety standards.
Note5: BS EN 13848-5 does not apply to Urban Rail Systems.
Who is BS EN 13848-5 - Quality levels of track geometry for?
BS EN 13848-5 on quality levels of track geometry is useful for:
- Manufacturers and suppliers of track recording vehicles/cars
- Manufacturers and suppliers of railway infrastructure equipment
- Vehicle manufacturers
- Infrastructure Managers
- Track maintenance managers
- Regulatory authorities
- Mechanical engineers
Why should you use BS EN 13848-5 - Quality levels of track geometry?
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 geometric quality levels help produce consistent and comparable results, regardless of the measuring speed and direction of travel.
The main purpose of the BS EN 13848-5 is to define minimum requirements for track geometry based on isolated defects to ensure safe operation of trains.
BS EN 13848-5 European Standard sets out quality levels, in particular immediate action limits (IAL), with the aim of harmonizing European track geometry quality standards.
BS EN 13848-5 can be significant in:
- Setting minimum requirements for the level of track geometry quality in order to manage safe operation
- Optimization of track geometry maintenance works
- Optimization of vehicle ride quality and dynamic loading of the track
- Harmonizing vehicle acceptance procedures
BS EN 13848-5 specifies the safety-related limits for each parameter, you can assure of safety and reliability of railway infrastructure.