The Woven Mat Junction

I sped straight down the hallway like a proper express, until a giant red sneaker loomed right across my route! With no sidings in sight, I swerved around its rubber toe, but suddenly my front wheels hit the thick bristly fibers of the front doormat! My wheels spun frantically in the rough coir without budging an inch. I took a deep breath, backed up two steady clicks onto the polished floorboards, and spotted a smooth sliver of bare wood skirting the mat's edge. Revving my axles, I dashed right through the narrow gap, steaming triumphantly toward the towering front door!