Right now, the least amount of space between signals is about every 300 feet, except in special instances, like curves.

It reduces some of the problems of cross talk, or interference between competing signals.

Increasing the distance between the home and distant signals would decrease capacity.

Could making use of the space between signals be the solution to all our problems?

That's because you don't need to switch between signals, the box does it for you.

She knew why: they were too close, and he had a conflict between physical and intellectual signals.

With two signal protection, only one track circuit is needed between successive signals.

He begins to doubt his own ability to distinguish between normal and abnormal signals.

The company was using primitive interlocking between signals at some junctions by 1844.

The distance between signals varies widely depending on track conditions.