Railway lines (tracks) are laid down on a bed of evenly spaced sleeps. The sleepers are usually of creosoted heavy timber, though concrete is often used instead of wood. The sleepers kept the rail tracks from moving and causing a train to derail.
A sleeper railway carriage (or a sleeper, a rail sleeper, a sleeper car).
The West Coast Main Line from London to Glasgow. The longest train route is the Caledonian Sleeper which runs from London to Inverness.
wooden sleepers are kept because the weight of train is balanced and distance between tracks same.
chair
A vernier sleeper is a specialized railway sleeper or tie used to adjust track gauge on a railway. It consists of two separate parts that can be adjusted independently to slightly alter the position of the rail, which helps accommodate for gauge variations or minor adjustments in the track alignment.
A sleeper or in the US a tie or cross tie.
The word 'sleeper' in this context dates from about 1789 and comes from Newcastle.
Scenic World's railway line is the steepest
Rand railway line was created in 1920.
Rand railway line ended in 1987.
Echuca railway line was created in 1864.
Hurstbridge railway line was created in 1888.