The distance between two rails in a train track is called the gauge. It depends on the company and the location. Narrow gauge rails are cheaper to build and allow a train to turn tighter corners; wide gauge allows for greater stability and therefore speed, and higher weight capacity.
The most common gauge internationally is called standard gauge and is 4'8" (1422mm).
Other common gauges are:
* 5 ' 6 " (1676 mm) * 5 ' 3 " (1600 mm) * 5 ' (1524 mm) * 4 ' 8½ " (1435 mm) * 3 ' 6 " (1067 mm) * 3 ' 3⅜ "(1000 mm) There is a myth that the distance between the wheels for is related to the width of two horses or oxen pulling a cart. It is untrue, but makes for a good story.
Standard North American railroad tracks are 54.5 inches apart. This distance is known as the gauge of the rail.
The standard railway gauge is 1435 mm, or 4 feet 8 1/2 inches. Many other gauges are in use around the world, but the standard gauge is the most common.
N Gauge rails are by definition 9mm apart. This is regardless of the scale of the model components, which frequently ranges from 1:148 to 1:160.
15 Feet
20 feet
About 21 inches
Yes, if there is no other force acting upon the railroad track then you would be able to hear the train about a mile away. Unfortunately this is dangerous because there is no way to tell exactly how far away the train is.
The standard distance between the rails on a train track, known as the gauge, is typically 4 feet 8.5 inches (1,435 mm) for standard gauge. However, there are other gauges used in different contexts, such as narrow gauge (less than 4 feet 8.5 inches) and broad gauge (wider than standard gauge). The choice of gauge can affect the stability, speed, and capacity of trains.
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Standard American Gauge is 4 feet 8 and a half inches.
Read Paulo Coelho book called The Zahir. Pretty much explains it perfectly.
You Can't Get Far Without a Railroad was created in 1957.