When driving on a narrow downhill road, you should give right of way to vehicles driving uphill in the following instances:
- Only on an urban road.
- Only if a dangerous descent sign is placed.
- Correct answer: When the road section is too narrow to allow both vehicles to pass each other at the same time.
- Only if the weight of the vehicle driving uphill is more than four tons.
Why this is the answer
The correct answer in the official bank: When the road section is too narrow to allow both vehicles to pass each other at the same time.
On a narrow slope where the two vehicles cannot pass each other at the same time, the vehicle going downhill must give way to the one going uphill. A vehicle climbing a slope has a harder time stopping and starting again, while the descending vehicle can stop and make room more easily. This applies on any road, regardless of road type, a dangerous descent sign or the uphill vehicle's weight.