Expressway Driving

Characteristics of Expressway Driving

Roadway Speed•Interchanges•No cross traffic•Median•Tollbooths•Entrance/exit ramps•Limited access•More lanes

•55-65 MPH•Minimum 45 mph•IPDE faster•Predict sudden stop

Other Users

Signs & Signals

Characteristics of Expressway Driving

No pedestriansTrucksMotorcyclesConstructionEmergency vehicle

•Green guide signs•Merge•No traffic signals•Interstate signs

Advantages to Expressway Driving

• Designed for low-risk higher speed travel• Safer than other highways• No cross traffic• Median or barrier separates oncoming traffic• Pedestrians & slow moving cars are not allowed• Wide shoulders = good escape paths• Signs help anticipate conditions early

Safe Driving Strategies

•Collisions can be more serious•Know where you are going•Obey speed limit or common speed•Build experience gradually•Give full attention to driving task•Cooperate with other drivers

3 Parts of Entrance RampSee picture in textbook page 225

1. Entrance Ramp

2. Acceleration Lane

3. Merging Area

Step # 11. Entrance you

want ?2.Is it an entrance?

Steps for ENTERING

expressway

Step # 2• Check zones• Signal• Check rearview mirror

and blind spot

Steps for

ENTERING

expressway

Step # 3 • increase speed• check mirrors • check blind spot (just

before moving over)

ACCELERATE!!!!

Steps for ENTERING

expressway

Step # 4• Find TARGET (car) to

follow • adjust speed• merge smoothly

Steps for ENTERING expressway

Step # 5• Cancel signal• adjust to speed

of traffic

Steps for

ENTERING

expressway

Randall Rd. and Interstate 90

Randall Road and Interstate 90

Double turn lane to go EAST on 90 off Randall Rd.

Entrance from Randall to 90 East

Woodfield shopping area Interstate 90 & 53

One example of Entering an Expressway

What is the purpose of the first head check…early on ramp?

Check the volume of traffic and their speed… (so you’ll know how fast to accelerate)

Look for a space to merge in...

What is the purpose of the second head check as the ramp begins to straighten?

…you are now building up speed- you should also…at this point:

…signal, mirror, final head check left

…make any necessary speed adjustments

…but what will you do if you can not get over because other vehicles are preventing your merge?

#5 What other problems might you encounter entering the expressway?

a. ramp d. Merging area

b. Ramp signal lights

e. Entrance on left

c. Acceleration lane

-- stay back and let him merge…then you can quickly accelerate & complete your merge

What if there is a slow moving truck in front of you getting ready to merge?

Short merging area, sharp curves

Shared entrance and exitBest Lane Choice:

Middle/Right Lane

Shared entrance and exit

Shared entrance and exit

Shared entrance and exit

How about an entrance on the left??

Best Lane Choice: middle or right lane

Scott’s Law (Move Over Law)

IPDE

• Identify—drivers have longer sight distance, MUST identify volume of traffic, signs & signals EARLY

Lane ChoiceRead section on page 230

You will not be delaying faster traffic

If you will be driving slower, why is it best to stay in the right lane?

Best Lane Choice:

Middle/Right Lane

You are in the right lane and predict a conflict with this merger. If you can, what is your best

decision to avoid a conflict?

Change lanesOther options: speed up or slow down

If you are moving with the flow of traffic, why is it best to drive in the center lane most of the

time?

Stay away from mergers

Sometimes there are additional merges to deal with

Speed limits•Minimum speed limit

Driving too slowly can be dangerous on an expressway, highways have a set lowest speed

•Common speedDrive at the common speed used by most drivers so you can blend with expressway traffic, sometimes common speed is higher than maximum speed

Lane changing on expressway

•Steps for making lane change (page 233) Change one at a time, check mirrors, check blind spot, if path is clear then accelerate and move to next lane, cancel signal

•Problems with lane changing—see pictures on page 233

Two cars could be moving into the same open space, traffic in lane you are moving into may be going much faster

Exiting Expresswaypage 236

STEPS:1. at least ½ mile ahead of exit move

into the lane that leads to exit, do not reduce speed until you are in deceleration lane

2. move into deceleration lane, cancel signal

3. flash brake lights to warn drivers behind you are slowing, check rear zones

4. identify ramp speed, check your speed, predict a yield sign, a stop sign or signal light at end of exit

Make a lane change right!

If this driver wants to get off on Palatine Rd. what should they be doing ASAP?

Best Lane Choice:

Middle/Right Lane

We want to exit at the upcoming exit but what else do we need to look for?

You do not want to exit at Kirchoff Road… what must you do here?

Preparing to exit at Randall Rd

A closer look at

signs and roadway markings

If we are exiting here what should we be doing now?

If we are in the left 2 lanes can we still exit?

Approaching tollbooth

Tollbooth before Randall

After tollbooth before Randall

Thinking About Not Wearing Your Seatbelt?

Construction Video

not riding on shoulder

heavy traffic

Move Over Law (Scott’s Law)