The kind that apparently makes rails go wrong.
I didn't think it was that hot today, at least, not as hot as that mad week when the whole nation got its collective tan and places like Margate probably had a run on jellied eels and Mr Whippy.
On my way to Woodbridge during the afternoon, the First Great Western service I was on first slowed to 20 mph, to allow to the train to skate along the heated-to-plasma-phase rails, and then stopped at Iver (Iver?
Where?) because train in front had done an emergency stop.
I got to Paddington a little bit behind time, and decided to brave the Circle line (a bit hit and miss since the engineering works started) and was impressed when one arrived in good time and went to Edgeware Road. Where it stopped, and waited. And waited.
It seems that they have to queue in a row to stop at the platform, and that this queue can get quite long, and last for quite a while until the situation resolves itself. Sort of like tranport constipation, if one should be so crude.
Agitated men in crumpled suits looked at their watches in consternation. The smiling Asian man sitting next to me with a beautiful potted plant between his feet gazed out of the window. The larking boys swinging from the roof bars got fidgety and play-punched each other. An attractive, aging hippy-Earth-Mother type hummed to herself, and periodically checked an ancient mobile phone. When the train finally lurched forwards, the human millieu was jostled together, and elbows, cases, bags and bodies collided. The tall black man who'd sat down on his luggage (a Paratroop Regiment careers guide and a box of new army-style boots) toppled over, laughing. All of us now sweating, and the carriage feeling like a greenhouse.
From Liverpool street, more delays - a long wait at points ouside Ipswich, sitting opposite an irrate fellow-traveller, on a train where the trolley service liquid refreshment had started to run dry. 'Got any water?' I asked, seeing that there wasn't any. 'It's Adnam's beer or pop m'love' came the answer, and so, warm can of Sprite in hand I waited again for train movement, and watched out of the window as ducks flew past over the ripening corn fields, and the sun lit the Suffolk countryside.