Lights and Intersections

What is a Fresh Green Light?

Fresh or Stale Green Light? Why?

Fresh or Stale???

Fresh or Stale???

Summarize

What clues indicate a Fresh Green Light?

● Cross traffic is light
● Protected green arrow is on in our direction
● Oncoming traffic is heavy or still accelerating
● Traffic moving in our direction is heavy
● Pedestrian “WALK” light is on

What is a stale green Light?

Fresh or Stale?

Identify the clues that tell you this is a stale light

Fresh or Stale??

Identify the biggest clue that tells you that this

light is stale:

Summarize this slide:

What clues indicate a stale green light?

● Oncoming traffic is light and moving quickly
● There are unprotected left turners in the intersection
● Cross traffic is heavy
● Pedestrian light is counting down or flashing “Don’t Walk”

Identify what you believe to be the biggest hazard at this light:

POINT OF NO RETURN

​The point at which it is no longer safe to stop at an intersection

Factors that affect the point of no Return???

• Size, Speed, and Proximity of vehicle behind you
• Weather Conditions
• Unprotected Left Turns
• Your Speed
• Your Proximity to the Light
• Your Vehicle’s ability to stop

Where should you look before deciding to stop?

Fresh or Stale??

Will the Green Arrow Stay On???

Will we get a green light?

You’re in the left turn lane approaching the white stop line…when the light turns, what are you anticipating?

The Protected Left Turn Arrow…

Before proceeding with your left turn…what must you do?

Wait for vehicles in the intersection to complete their maneuver

Sensor boxes embedded in the pavement will detect the presence of a vehicle and give the protected green arrow.

Many have magnetic sensors which detect the metal of the vehicle.

We’re moving into the left turn lane toward the intersection…(oncoming
cars have already started moving). Why did we not get the protected arrow?

Why is this a red light green arrow situation?

Where would your stopping point be if this arrow turned red?

Explain how to handle this if the yellow light
is flashing

Who has right of way?

Who has right of way?

What if you were the vehicle in the intersection right now?...

Where is your waiting point here?

Can we creep up next to this car to make a right on red?