THE record July temperatures disrupted many lines in southern England on Thursday, and Network Rail has warned that some problems are likely to continue on Friday.
The temperature reached a new record for July on Thursday, with 38.1C recorded at Cambridge.
Widespread speed restrictions were imposed, and a number of operators urged passengers not to travel unless their journeys were essential.
Many cancellations were also needed as trains moved more slowly than usual, cutting capacity. There was particularly serious disruption on the East Coast Main Line, following damage to the OHLE just north of Peterborough. LNER warned that many of its trains from London were being cancelled, while those which did run were up to two hours late. There were no Grand Central or Hull Trains services from London.
Other operators affected were c2c, Chiltern Railways, CrossCountry, East Midlands Trains, Great Western Railway, Greater Anglia, London Northwestern Railway, London Overground, Stansted Express, TransPennine Express and Virgin Trains.
Some of the disruption was not related to the heat. A trespasser caused many South Western Railway trains from London Waterloo to be cancelled or delayed, and all lines between Waterloo and Clapham Junction were blocked for a time.
Network services director at Network Rail Nick King said: ‘There were a number of heat related incidents across the railway on Thursday 25 July. Our teams have been working flat out to fix the issues, however we are sorry that disruption is likely to continue into the morning of Friday. We are advising passengers to check with their train operators or the National Rail Enquiries website before travelling.’