34.2. Notation

Try these first

1. 1.

   Define distance headway.

   Hint

   Think about what must be included in the measurement.

2. 2.

   What is the distance gap?

   Hint

   Consider what is left when you remove the vehicle's length.

3. 3.

   What does distance headway include?

   • Only gap
   • Vehicle length and gap
   • Only vehicle length

   Hint

   Remember what you measure between the two vehicles.

4. 4.

   True or False: Distance gap includes the length of the leading vehicle.

   • True
   • False

   Hint

   Think about what is being measured.

5. 5.

   Given varying traffic conditions with different vehicle lengths, determine the optimal distance gap and headway for multiple scenarios, considering speeds of 30, 50, and 70 km/h.

   Hint

   What guidelines exist for vehicle spacing at these speeds?

6. 6.

   Using real traffic data, analyze the impact of proper vehicle spacing on accident rates and propose improvements based on your findings.

   Hint

   What data collection methodology will be used?