A train operator is to carry out test runs ahead of a return to a full timetable after two days of disruption due to the extreme heat.
สล็อต Bitcoin เว็บเล่นสล็อตรูปแบบใหม่ There are many games for everyone to choose from, beautiful graphics, modern, retro, fighting, cute, we have you to choose from.
Great Northern and Thameslink services were cancelled earlier and a rail track buckled near King's Lynn, Norfolk.
Managing director Tom Moran said the safety of passengers and staff was a priority.
"The heat has been completely unprecedented... and so has the impact," he said.
Tonight, engineers will begin repairs to the buckled track on the Fen Line at Watlington in Norfolk, a Great Northern spokeswoman said.
Jenny Saunders, customer services director for Thameslink and Great Northern, apologised for the disruption and said the firm was hoping to run trains between Cambridge and Downham Market on Wednesday.
A replacement bus service would run between Downham and King's Lynn.
Mr Moran said the East Coast Mainline - and the Midland Mainline out of St Pancras in London - had shut all day after reviews were carried out on Monday night with operational and safety teams.
"The most important thing we need to do is to keep people safe; this is just one of those things," he said.
"We had similar disruption with Storm Eunice and Storm Franklin a few months ago. This will pass."
Record UK temperatures were recorded earlier on Tuesday - hitting 40C (104F) in Lincolnshire.
