An investigation into the causation of signals passed at danger (TM-TAG-138)

1. A 3-year investigation of Signals Passed at Danger has been completed, jointly undertaken by Royal Holloway and Bedford New College and British Rail Research. 2. During this period 1986-1989, and indeed from about 1982, the number of SPAD's recorded annually has risen steadily. 3. Analysis of year-to-year...