15.4.2. Psychological widening

Try these first

1. 1.

   What is psychological widening?

   Hint

   Think about how drivers behave on curves.

2. 2.

   Which organization provides guidelines for road design in India?

   Hint

   The acronym IRC stands for something related to road safety.

3. 3.

   What is the primary reason for psychological widening?

   • To accommodate vehicle size
   • To give more space to drivers
   • To prevent accidents

   Hint

   Consider driver behavior during curves.

4. 4.

   True or False: Mechanical widening is only concerned with the physical size of the vehicle.

   • True
   • False

   Hint

   Think about how vehicles navigate curves.

5. 5.

   You are tasked with designing a highway with multiple curves. Discuss the factors you would consider regarding psychological widening and how they might impact the overall design.

   Hint

   Think about real-world scenarios: What do drivers naturally do on curves?

6. 6.

   Assume a road with curves is experiencing frequent accidents due to insufficient width. Outline steps to assess and redesign the road to account for psychological widening.

   Hint

   Consider driving behaviors and how they may justify your redesign suggestions.