Tracks

Why are railway lines twisted in hot weather?
Why did the train tracks become crooked? Why are curved railway tracks banked ? ... When a fast moving train takes a curved path, it tends to move awa...
Which is better tracks or tires?
Are tracks better than wheels? The tracks have a lower ground pressure than wheels and are more suited to soft surfaces. For example less ground press...
Why are railway tracks put down in summer?
What happens to railroad tracks during summer? On hot days, steel rails exposed to direct sunshine can become 20C hotter than the air temperature, acc...