What should you remember to do before you start towing tram carriages damaged due to a collision?
Show the correct answer
Correct answer
C. To couple in a way that prevents uncoupling while driving.
Explanation
In the photo, a traffic control centre (nadzór ruchu) worker is fitting a tow bar with a safety chain at the rear bumper of a tram. Before you start towing a tram set damaged in a collision, you must remember to connect it in a way that prevents it from coming apart while moving - answer C.
If the towed set comes apart while moving, there is a risk that the tram will roll out of control, for example on a downhill slope, and cause a collision. That is why the connection must be secure and checked before moving off. A warning triangle (answer A) and a yellow flashing light (answer B) apply to towing power-driven vehicles, and a tram is not one. You tow slowly, because the braking distance of the combination is longer. Before moving off, you also check the brakes of both vehicles.
Legal basis: Art. 31 para. 1 point 4 of the Road Traffic Act (Prawo o ruchu drogowym) (applied accordingly)