Show:
Interchanges
Expressway problems
Merging
5

What are the four types of interchanges

Cloverleaf

Diamond

Trumpet

Frontage

5

what is one thing you are suppose to do if there's a disabled vehicle?

  • Don’t slow down and stare at the disabled vehicle. 

  • Give the disabled vehicle plenty of room.

  • Pull as far off the roadway as possible if your vel becomes disabled.

5

What is a way to help overs merge onto a expressway

Help drivers enter expressway by adjusting spots or changing lanes if its safe safe to do or so.

10

What should a driver do from the entrance ramp of a weave interchange should yield to who

Vehicles leaving the expressway. 

10

What is one potential exiting problem

  • Short deceleration lane

  • Sharp curve on ramp

  • Traffic stopped on the exit ramp

  • Slow ramp speed, possibly due to a stop sign or traffic light at the end of the exit ramp (The driver must adjust from a fast speed to a STOP in a short distance.)

  • Weave lane conflicts

10

Free square

Free square

15

What is the purpose of a Diamond interchange

This interchange is designed to

Be used when a road that has 

little traffic crosses a busy 

expressway.

15

What is one potential exiting problem

  • Short deceleration lane

  • Sharp curve on ramp

  • Traffic stopped on the exit ramp

  • Slow ramp speed, possibly due to a stop sign or traffic light at the end of the exit ramp (The driver must adjust from a fast speed to a STOP in a short distance.)

  • Weave lane conflicts

15

What is the merge area marked with

The merge area is marked with a broken white line.

20

What does a trumpet interchange make?

A "T" section 

20

What is a quality of a wolf pack?

  • Wolf packs are groups of drivers traveling together at higher speeds 

  • Driving in a wolf pack allows you little or no margin to safety 

  • Avoid wolf packs. If you see a wolf packs approaching from the rear, moving over and let them pass you.

20

What is the purpose of a merge lane

  • The merge area provides a designated space to blend into expressway traffic,

25

What does a weave lane do?

  • A weave lane serves as both an entrance and exit lane; traffic entering exiting must use the same lane.

25

What are the three major merging problems?

  • Heavy traffic

  • No gap to move onto expressway

  • Traffic slowing or stopping ahead

25

what are you looking for when merging?

  • Check fron, rear, and left rear zone

  • Select a gap

  • Move into the open space on the expressway