I guess you are referring to the practice of painting the ends of third rails in white.
This is a safety measure, so track workers can see them easier. It avoids them tripping over the rails, or worse, electrifying themselves on the 750 Volts DC.
This only occurs where the trains are powered by third rail, mostly south of London or on Merseyside.
Detector rails generate redstone energy (for a redstone wire or other contraption) when a minecart is on them. You can make a simple minecart accelerator by placing rails like so: [minecart rail][detector rail][powered rail][powered rail][detector rail][minecart rail]
Jobs for the British rails is normally available from government websites likes UK Jobs, under the category Rail Jobs network. Other websites advertising rail jobs, include Prospects and Total Jobs.
To install chair rails in your home, measure and mark the desired height on the wall, use a level to ensure it is straight, then attach the chair rail with nails or adhesive. Fill any gaps with caulk and paint or stain the chair rail to match your decor.
The ribbon rail is used to join the jointed rails.
1 rail.
rail.
1 rail
2 running rails. There may be a power rail ("the third rail") There may be guard rails at places like bridges and curves (there always are short ones at turnouts ("switches").
The rails don't move. The train does.
Network Rail was created in 2002.
Network Rail's population is 35,000.
If there are 6 rails between each pair of posts, you will need one additional rail at each end of the fence. For 9 sections, you will have 10 posts, resulting in 6 rails per section multiplied by 9 sections, which equals 54 rails. Adding the 1 rail at each end, the total number of rails needed is 54 + 2 = 56 rails.