81. A Sunday HST-08.09.24

It was a normal Sunday with nothing special, or so it seemed on both counts! Then, I noticed mid-morning that an STP (Short Term Plan) had been slotted into the timetable showing as an HST. Secondly, I noticed at lunchtime that there were all sorts of delays in the Berkhamstead area with the down slow showing as blocked with stationary trains all around the area except for the up slow. making enquiries it appeared that some OHL had been brought down with other lines appearing to be affected. A Thunderbird move there and back from Rugby was also noted running as 1Z99. All trains were facing heavy delays including the mysterious HST move noted earlier.