Delay Attribution Guide

The Delay Attribution Guide contains a list of delay attribution codes and reasons. The same codes are used in Train Cancellation messages sent on the  Train Movements feed. The current (April 2013) codes are listed here for reference.

Codes are grouped in to several sections:


 * A* - Freight terminal operating company causes
 * F* - Freight operating company causes
 * I* and J* - Infrastructure causes
 * M* and N* - Mechanical and Fleet Engineer causes
 * O* - Network Rail operating causes
 * P* - Planned or Excluded delays or cancellations
 * Q* - Network Rail non-operating causes
 * R* - Station operating company causes
 * T* - Passenger operating company causes
 * V* - Passenger Charter excludable (TOC responsibility) causes
 * X* - Passenger Charter excludable (Network Rail responsibility) causes
 * Y* - Reactionary delays
 * Z* - Unexplained delays and cancellations

= Delay Attribution Codes =