13.4. Overtaking Sight Distance

Try these first

1. 1.

   What is overtaking sight distance?

   Hint

   Think about what a driver needs to see and do.

2. 2.

   Name one factor that affects overtaking sight distance.

   Hint

   Consider what impacts how quickly a driver can respond.

3. 3.

   What is OSD important for?

   • Safety in overtaking
   • Fuel efficiency
   • Vehicle performance

   Hint

   Think about how it relates to road safety.

4. 4.

   True or False: A steeper road gradient always aids acceleration during overtaking.

   • True
   • False

   Hint

   Consider what happens to vehicles going uphill versus downhill.

5. 5.

   A vehicle traveling at 90 km/h needs to overtake a slower vehicle moving at 60 km/h. The driver has a reaction time of 2.5 seconds, and the road is flat. Calculate the OSD considering all factors.

   Hint

   Start by calculating each part of the equation separately.

6. 6.

   Analyze how a steep uphill gradient would affect the OSD if the speed limit is 80 km/h, and vehicles must accelerate to safely overtake.

   Hint

   Consider how gravity influences vehicle acceleration.