13.6. Summary

Try these first

1. 1.

   Define what Stopping Sight Distance (SSD) is.

   Hint

   Think about stopping without an accident.

2. 2.

   What are the basic components of calculating SSD?

   Hint

   Consider the reaction time of the driver.

3. 3.

   What is the primary purpose of sight distance on the road?

   • To determine speed limits
   • To ensure safety during maneuvers
   • To improve road aesthetics

   Hint

   Think about the main safety aspect for drivers.

4. 4.

   True or False: The Intermediate Sight Distance is twice the Stopping Sight Distance.

   • True
   • False

   Hint

   Recall the definitions of ISD and SSD.

5. 5.

   Calculate the Stopping Sight Distance (SSD) for a vehicle traveling at 100 km/h with a reaction time of 2.0 seconds and a coefficient of friction of 0.4.

   Hint

   Remember to convert the speed into meters per second.

6. 6.

   Design an overtaking scenario where SSD is essential when two cars are traveling towards each other at 60 and 80 km/h. Determine the minimum sight distance required for a safe passing maneuver.

   Hint

   Use the equation incorporating speeds and spacings between vehicles.