What is the statutory obligation to slow down which applies to drivers?

1. To slow down when the vehicle is packed with passengers.
2. To slow down to a reasonable speed, at the driver’s discretion, without stopping.
3. To slow down before level crossings with a traffic light and with a barrier.
4. Correct answer: To slow down the vehicle and even stop whenever danger is anticipated.

WhyThe duty to slow down means reducing speed and even stopping whenever danger is anticipated. It always applies, not only before a highway or a descent.