Clear the Track Ahead

A sudden hum stirred deep in my axles! I gave my wheels a brisk test roll, inching forward across the blue cloth plain. Right beside my buffer beam rose a towering, colorful fold of fabric, like a giant soft hillside leaning across my line. Without waiting, I nudged firmly against the soft hem with my front buffer. The cloth yielded with a gentle rustle, shifting slightly aside to leave my immediate path open. Right on time, ready for service!