Rail Transit Vehicle Event Recorders
|Publication Date:||11 December 2013|
This standard covers on-board devices/systems, with crashworthy memory, that record data to support accident/incident analysis for rail transit vehicles. The requirements of this standard are limited to event recorder functions and interfaces, exclude the data transmission method(s), and are independent of the hardware and/or software employed for other vehicle systems. Functions, parameters, signals, systems, and subsystems that shall be captured are identified. Diagnostic features and self-test options are described.
Each order of new vehicles or overhaul of existing rail transit vehicles requires engineering effort by all parties to determine which signals to capture, how often to sample and how long to preserve the information. In addition, there can be varying requirements for crashworthiness. This standard identifies a common set of requirements for event recorders for transit systems, including some correlation to Federal requirements for railroads. Users benefit from a simplified process of integrating diagnostic information from multiple subsystem suppliers and from having a common method of crashworthiness certification.