BS EN 15227:2008 Railway applications. Crashworthiness requirements for railway vehicle bodies
BS EN 15227 applies to new designs of locomotives and passenger carrying rolling stock. It is intended to protect vehicle occupants, through the preservation of structural integrity, and does not extend to other railway employees and customers who are not in vehicles, or to third parties.
The requirement of BS EN 15227 is to provide a level of protection by addressing the most common types of collision that cause injuries and fatalities.
The requirements of BS EN 15227 do not cover all possible accident scenarios but provide a level of crashworthiness that will reduce the consequences of an accident, when the active safety measures have been inadequate.
The requirements of BS EN 15227 apply to the vehicle body, and to those mechanical elements directly associated with it that may be used to absorb energy in a collision, such as couplers, buffing systems etc. They do not cover the safety features of doors, windows, system components or interior features except for specific issues relating to the preservation of survival space.
Contents of BS EN 15227:
- Foreword
- Introduction
- Scope
- Normative references
- Terms and definitions
- Crashworthiness design categories of railway vehicles
- Design collision scenarios
- Structural passive safety
- General principles
- Overriding
- Survival space, intrusion and egress
- Deceleration limit/collision pulse
- Obstacle deflector
- Validation of crashworthiness