What is BS EN 14033-4 –Railbound construction and maintenance machines about?  
BS EN 14033 is a European standard that discusses railway applications.
BS EN 14033-4 is the fourth part in the multi-series that details best practices for ensuring safety and maintaining an efficient track system.
BS EN 14033-4 deals with the technical requirements to minimize the specific railway hazards of rail-bound construction and maintenance machines – henceforward referred to as machines, intended for use on urban rail systems.
Note: BS EN 14033-4 does not apply to the following:
- Requirements for the quality of the work or performance of the machine
- Machines moving and working whilst not on rails
- Specific requirements established by the machine owner and/or operating company for the use of machines, which will be the subject of negotiation between the manufacturer and the Urban Rail Manager
Note: BS EN 14033-4 does not establish additional requirements for the following:
- Operation subject to special rules, e.g., potentially explosive atmospheres
- Hazards due to natural causes, e.g., earthquake, lightning, flooding
- Working methods
- Operation in severe working conditions requiring special measures, e.g., in tunnels or cuttings, extreme environmental conditions such as freezing temperatures, high temperatures, corrosive environments, tropical environments, contaminating environments, strong magnetic fields
- Hazards that may occur when a machine is used to handle suspended loads that may swing freely
Who is BS EN 14033-4 - Railbound construction and maintenance machines for? 
BS EN 14033-4 on rail-bound construction and maintenance machines is relevant to:
- Railway manufacturers
- Manufacturers, designers of machines
- Railway industry and authorities
- Train operating companies (TOCs)
- Urban rail manager
- Railway authorities
- Regulatory authorities
Why should you use BS EN 14033-4 - Railbound construction and maintenance machines?  
BS EN 14033-4 defines requirements for approval of the machine for use on urban rail systems.
BS EN 14033-4 covers the technical requirements for dealing with railway specific risks of the machines when running, travelling and working on railway infrastructures. It covers standard references that help prevent track failure and derailment, improve protection from live overhead lines, and establish functional warning systems, amongst other things.
As a user of BS EN 14033-4, you can ensure that compliance with these standardized requirements for railbound construction and maintenance machines, impart a high degree of operational efficiency to overall railway infrastructure and track systems.
