When you are driving on a steep downhill road and there is a car attempting to drive uphill on the opposite side, how should you proceed?

In New Zealand, when you are driving down a steep hill and there is a vehicle attempting to go uphill, the correct practice is for the downhill vehicle to yield to the uphill vehicle. This rule is very important for several reasons:

1. Power and Control: Uphill vehicles face greater challenges in power delivery and vehicle control compared to downhill vehicles. Uphill vehicles need to maintain a certain speed to avoid stopping or rolling backward, especially on steep inclines. By yielding, the downhill vehicle helps ensure that the uphill vehicle can ascend safely and smoothly.

2. Safety Considerations: Due to the effects of gravity, downhill vehicles generally find it easier to slow down and stop. If a downhill vehicle continues to drive and forces the uphill vehicle to stop or yield, it may increase the risk of the uphill vehicle losing control. Therefore, the requirement for downhill vehicles to yield is essential for the safety of both parties.

3. Traffic Flow: This rule also helps maintain smooth traffic flow. If uphill vehicles can proceed without obstruction, it reduces the likelihood of stoppages and congestion that may occur on steep slopes.