Instead, the frugal DL&W paid a shantyman to watch for fallen rocks, and in later years, installed electronic detectors that could automatically set trackside signals to red if rocks fell.
The frugal DL&W paid a shantyman to watch for fallen rocks. This was instead. The frugal DL&W in later years, installed electronic detectors. This was instead. These electronic detectors could automatically set trackside signals to red. Rocks fell.