It is certainly not a problem that seems to be in decline. We have recently been away by rail. On our outbound journey on Thursday 14 September, our second train of the day was an Avanti GWML▸ (Great Western Main Line) service out of Birmingham New Street. Near Sandwell and Dudley station, the train shuddered to a halt. A clearly shaken TM‡(resolve) told us a few minutes later that a man had jumped of a bridge in front of the train. Incredibly, the train only clipped him, and he wasn't seriously hurt. The driver could not continue though, and the train terminated in Wolverhampton. We eventually continued on a diesel service for many miles under wires.
This morning, as we boarded the connecting train to Manchester, I saw that our train to Bristol had been cancelled. After making hurried adjustments to our itinerary using RTT» (Real Time Trains - website), I found that cancellation was also caused by a person hit by train.