37b5bc35_il_feeds___Open_Rail_Data_Wiki__Details
[Feed] TD [Type] Real-time [Rate] Up to 1000 per minute [Details] 
Berth-level data from the Train Describer system, showing raw data with train movements in more detail than the Train Movements feed. Note: Messages are batched to reduce network overheads.
About the Network Rail feeds - Open Rail Data Wiki
Details