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The primary purpose of the three black lines, called rub rails, on the side of a school bus is to add structure and support to the vehicle. The general positioning of these stripes may line up...
The three black stripes on the side of yellow school buses aren’t for design. There is a vital purpose to the rails. First, the “rub rails” provide protection for the bus in case of a collision with another vehicle.
The rails add some strength to the thin sheet metal sides of the bus, and provide a good visual aid for rescue and safety workers in case a bus is involved in an accident; a quick glance at...
It says “The three black lines on the school buses serve a purpose. The bottom line is the floor of the bus. The middle line is the seat line. The top black line is the top of the seats.
But did you know there's even a reason for the three black stripes you'll find on the sides of most school buses? The Reason for the Top Black Stripe on the Side of a School Bus. Photos via Canva. First of all, these black stripes are actually called "rub rails".
Bees, caution tape, and the Pittsburgh Steelers have proven that black and yellow make an eye-catching color combo. But the black stripes on yellow school buses aren’t just for design.
Have you ever noticed those black lines on school buses and wondered what they were for? Here's the answer to this question and 30 more hidden purposes of objects we see and use every...