The phrase "a running rail" is correct and usable in written English.
It can be used in contexts related to railways, horse racing, or any situation where a rail is in motion or designed for running purposes.
Example: "The horse galloped smoothly along the running rail, showcasing its speed and agility."
Alternatives: "a moving rail" or "a track rail".
Yesterday, there she was again, perched atop a running rail.
Mars suffered a fatal heart attack in the early stages of the race and threw Richard Hughes, his jockey, over a running rail.
John Gosden's filly, four times a Group One winner, is a course specialist on Deauville's straight mile where, Timeform suggests, she benefits from a running rail which prevents her from hanging to her left.
Mossé had already performed a miracle just to stay on board the well-named Reckless Abandon who had charged towards a running rail when first coming out on to the track.
On the safety front, rubber matting has been put down on the area of the Best Mate enclosure on to which Daryl Jacob was pitched last year when his mount crashed into a running rail.
Last April, news outlets the world over gawked when city authorities uncovered a 100kg Soviet bomb just two metres away from a running rail line.
It detects a train's location when the wheels and axles cause a short circuit along a section of running rail -- not when a metal shoe on the train bridges a gap in the electrified third rail, completing a circuit.
The Stewards enquired into why there was a section of running rail missing about seven furlongs out.
But after safely negotiating the last, the gelding veered to go left through a tape which stretched across a break in the running rail, and his jockey was thrown to the muddy ground.
"Learn the lessons of East Coast, where we have seen the benefits of a not-for-dividend operator running rail lines, by legislating to allow a public sector operator to be able take on lines and challenge the train operators on a genuinely level playing field to secure value for money for passengers and taxpayers.
Crews also deployed an ultrasonic testing device, designed to find internal defects in the running rail, and a track geometry car to determine whether the track was properly aligned.
