slab track

American  

noun

1. a railroad track in which the rails are attached to and supported by a bed or slab, usually of concrete.

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Example Sentences

Faster trains also required more sophisticated junctions, and stronger slab track.

From BBC

The track will also sit on concrete "slab track" which is durable but more expensive to buy than your more conventional ballast.

From BBC

This reflects a practice honed along the entirety of the country’s 15-year-old high-speed rail network, casting slab track at temporary outposts close to the construction site.

From Slate

The Swiss rail service said it took 43,800 hours of non-stop work by 125 labourers rotating in three shifts to lay the tunnel’s slab track.

From The Guardian

It took 125 workers in three shifts round-the-clock to install the concrete slab track on which the trains will run, with some sections as deep as 1.4 miles.

From New York Times