From the U.S. Government Accountability Office, www.gao.gov

Transcript for: Vehicle-to-Vehicle Safety Applications

Description: Examples of selected vehicle-to-vehicle safety
applications.

Related GAO Work: GAO-14-13: Intelligent Transportation Systems:
Vehicle-to-Vehicle Technologies Expected to Offer Safety Benefits But a
Variety of Deployment Challenges Exist

Released: November 2013

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This video is part of a GAO report:

Intelligent Transportation Systems:
Vehicle-to-Vehicle Technologies Expected to Offer Safety Benefits But a
Variety of Deployment Challenges Exist
(GAO-14-13)

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Video and images provided courtesy of

Department of Transportation (DOT)
and
Crash Avoidance Metrics Partnership (CAMP)

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Examples of Selected Vehicle-to-Vehicle (V2V) Safety Applications

>> The following scenarios demonstrate some of the safety applications
that can be enabled using V2V Technology. The emergency electronic brake
light safety application, or EEBL, can notify a driver of a hard-braking
vehicle in the path ahead. Three vehicles are traveling in the same
lane. You are driving the last vehicle. You can't see the first vehicle
because it's being blocked by the vehicle directly in front of you.
Unexpectedly, the first vehicle slams on its brakes. Because of V2V
communication, your vehicle is able to provide a warning of the
hard-braking vehicle ahead, well before you see brake lights from the
vehicle directly in front of you. This warning will enable you to drive
safely and avoid a potential crash.

>> The blind spot warning safety application, or BSW, lets a driver know
that there's a vehicle that may not be visible positioned in the
driver's blind spot. Because of V2V communication, a blind spot advisory
is issued to make you aware of the presence of this vehicle. Should you
attempt a lane change with the vehicle still in your blind spot, this
advisory will escalate to a warning, letting you know that it is not
safe to change lanes.

>> The lane change warning, or LCW, is a safety application intended to
provide a warning if a driver intends to change lanes into a zone that
will soon be occupied by a faster moving vehicle traveling in the same
direction. Using the data obtained through V2V communication, your
vehicle predicts that this vehicle will soon be in this zone. If you
attempt to make a lane change, a warning will be provided, letting you
know that the lane change should not be attempted.

>> The forward collision warning application, or FCW, is intended to
warn the driver of a potential rear-end crash with a stopped or slower
moving vehicle ahead. You are driving over a small hill and ahead in
your lane is a slower moving vehicle. The vehicle ahead is wirelessly
sending its information, allowing your vehicle to provide a warning if
you are approaching too quickly and are in a potential rear-end crash
situation. This will enable you to slow to a safe speed and distance
behind the slower moving vehicle.

>> Now consider that a vehicle ahead of you has, for example, run out of
gas and is stopped in your lane. The vehicle directly in front of you
makes a late lane change around the stopped vehicle. Even though you
can't see the stopped vehicle, because of V2V communication, your
vehicle is aware of the stopped vehicle and provides you with a warning
ahead of time so that you can safely slow your vehicle before reaching
the stopped vehicle ahead.

>> The do not pass warning, or DNPW, is a safety application intended to
let the driver know that it is not safe to attempt to pass a slower
moving vehicle because of oncoming traffic in the passing zone. Using
V2V communication, your vehicle is continually looking for cars in your
intended passing zone. If a vehicle is detected in the passing zone, a
driver advisory is provided, letting you know that the passing situation
is potentially unsafe. Should you attempt to pass this slower vehicle,
the advisory escalates to a warning so you can stop the attempted
maneuver and remain in your lane.

>> The intersection movement assist, or IMA, is a safety application
intended to warn the driver when it is not safe to enter an intersection
because of the high likelihood of a crash with a vehicle on an adjacent
approach to the same intersection from either the left or the right. If
an intersecting vehicle is detected using V2V communication, a driver
warning is provided if it is unsafe for you to enter the intersection.

>> Now imagine you are approaching an intersection where you have the
right of way and cross traffic must stop. As you approach the
intersection, the driver of a crossing vehicle fails to stop and
continues traveling through the intersection directly in front of you. A
warning is provided when the violating cross traffic is detected. This
helps you respond in a timely manner and stop rather than continuing
through the intersection and potentially getting into a crash.

>> The left turn assist application, or LTA, is intended to warn the
driver when making a left turn that it may not be safe to proceed
because of oncoming traffic. You are approaching an intersection and get
into the left turn lane prior to making a left-hand turn at the
intersection. As you release the brakes to continue through the turn,
thinking the path is clear, a warning is provided indicating that
oncoming traffic has been detected using V2V communication and it is not
safe to complete the turn.

>> Caution, oncoming vehicle.

>> When the oncoming traffic clears, the warning goes away and the left
turn can be completed.

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[DOT logo appears on screen with U.S. Department of Transportation]

[CAMP logo appears on screen with logos from partnerships that include:
Mercedes-Benz, GM, Toyota, Honda, Ford, Nissan, Hyndai-Kia Motors, and
Volkswagen]

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