34.3.2. Forbes’ model

Try these first

1. 1.

   Define reaction time in the context of driving.

   Hint

   Think about how quickly a driver must react to emergencies.

2. 2.

   What is Forbes' model primarily concerned with?

   Hint

   Focus on what drivers need to maintain safe distances.

3. 3.

   What does Forbes' model primarily factor in for car following?

   • Speed of the vehicle
   • Driver's reaction time
   • Length of the vehicle

   Hint

   Consider what aspect of driving is critical for reacting to sudden stops.

4. 4.

   True or False: Forbes' model is effective at all speeds without any limitations.

   • True
   • False

   Hint

   Think about the implications of varying speed on safety.

5. 5.

   If a vehicle is traveling at 50 km/h and the driver's reaction time is 2 seconds, what is the safe minimum distance headway required?

   Hint

   Ensure your conversion from km/h to m/s is accurate.

6. 6.

   Discuss the potential impacts of changing speed limits on the application of Forbes' model in urban versus rural settings.

   Hint

   Consider the different driving behaviors induced in urban versus rural environments.