Crash Prevention & Safety (177 unique benefit summaries found)

Rapid deployment of DSRC for connected vehicles can save thousands of lives, regardless of whether a later transition to C-V2X proves advantageous.(12/12/2017)

Dynamic Speed Feedback Signs on Curves cuts number of single-vehicle crashes nearly in half.(January 2015)

Simulated Rural Highway Driver Warning Systems (RHDWS) showed a potential reduction of critical events by 21 percent, a decrease of 71 percent for runoff-road crashes, and contributed to smoother driving on the curvy highway.(May 2009)

Through use of the Roll Stability Control (RSC) systems, it was estimated that between 1,422 and 2,037 combination vehicle rollover crashes in curves could be prevented, resulting in effectiveness rates of 37 percent and 53 percent, respectively.(February 2009)

An analysis of benefits and costs of Roll Stability Control (RSC) Systems for the trucking industry found benefits per dollar spent values of $1.66 to $5.34 with varying estimates of efficiency and annual VMT.(February 2009)

Forward collision warning systems have potential to prevent 23.8 percent of crashes involving large trucks.(2009)

An evaluation of electronic stability control (ESC) and crash data from the Institute for Traffic Accident Research and Data Analysis indicated that the crash rate for single-car crashes and head-on crashes decreased by about 36 percent where ESC was expected to be effective.(18 February 2005)

In-vehicle rollover advisory control warning messages are expected to prevent 20 percent of rollover crashes caused by excessive speed in curves, based on driving data collected during a Freightliner FOT.(September 2003)

Curve Speed Warning

Passive safety treatments were found to be more reliable and affordable than active safety treatments on two-lane rural roads with dangerous horizontal curves in Virginia.(June 2018)

Sequential Dynamic Curve Warning System reduces the number of vehicles exceeding the speed limit by 10 mph or more by 27.8 percent(January, 2014)

Approximately 75 percent of drivers in a large-scale field operational test felt that curve speed warning systems increased safety.(11/21/2012)

A Benefit Cost analysis shows that dynamic curve speed warning signs have 30 percent effectiveness and an incremental B/C ratio between 2.79 to 5.57 for curves that already have static curve warnings.(December 2009)

Simulated Rural Highway Driver Warning Systems (RHDWS) showed a potential reduction of critical events by 21 percent, a decrease of 71 percent for runoff-road crashes, and contributed to smoother driving on the curvy highway.(May 2009)

In Myrtle Creek, Oregon, an advanced curve speed warning system installed on I-5 reduced the speed of 76 percent of drivers surveyed.(June 2006)

In Colorado, a downhill truck speed warning system installed on a curved section of I-70 reduced 85th percentile truck speeds by 27 percent.(November 2001)

An advanced curve warning system on an interstate route in northern California caused over 68 percent of drivers to reduce their speed. (April 2000)

More than 76 percent of drivers on an interstate route in northern California indicated that messages displayed by an advanced curve warning system were useful.(April 2000)

Downhill Speed Warning

In Oregon and Colorado, downhill speed warning systems decreased truck crashes up to 13 percent at problem sites.(31 October 2006)

In Colorado, a downhill truck speed warning system installed on a curved section of I-70 reduced 85th percentile truck speeds by 27 percent.(November 2001)

A dynamic truck down hill speed warning system installed on I-70 in Colorado reduced the average speed of passing trucks by approximately 5.2 mi/hr. (15 December 1999)

A small-scale study of truck drivers who experienced a dynamic truck down hill speed warning system in Colorado indicated that most drivers thought it was helpful.(15 December 1999)

In Colorado, a dynamic truck downhill speed warning system (DSWS) installed on I-70 decreased the number of accidents by 13 percent.(15 December 1997)

In Colorado, a down hill truck speed warning system installed on I-70 reduced runaway ramp usage by 24 percent and contributed to a 13 percent drop in crashes involving trucks and excessive speeds.(May 1997)

Overheight/Overwidth Warning

Overheight vehicle detection systems on I-10 in Houston reduced bridge hits by 66 percent.( July/August 2018 )

Overheight vehicle detection systems on I-10 in Houston contributed to 20 fewer bridge hits per year, saving TxDOT more than $2 million in annual bridge repair costs.( July/August 2018 )

The cost to purchase and install an overheight vehicle detection system (OHVDS) was estimated at $100,000 per location.( July/August 2018 )

Most professional truck drivers interviewed in Ohio and California expressed favorable views of on-board connected vehicle safety applications installed on Class 8 commercial vehicles.(01/31/2014)

At a tunnel in Pennsylvania, an overheight/overwidth warning system improved safety; occasional crashes demonstrate value of system and importance of maintenance.(31 October 2006)

A nationwide survey evaluating overheight/oversize warning systems found that eight states that deployed active infrared light or laser activated warning systems had fewer overheight load strikes on infrastructure components.(12-16 January 2003)

Rollover Warning

At the Breezewood Interchange on the Pennsylvania Turnpike, installation of a truck rollover warning system immediately reduced the occurrence of truck rollover crashes.(April 2006)

Evaluation Results of Three Prototype Automatic Truck Rollover Warning Systems(11-15 January 1998)

After a ramp rollover warning system was installed at three curved exit ramps on the beltway around Washington, DC, there were no accidents at any of these sites during the three year post deployment test period evaluated.(15 December 1997)

In Colorado, a down hill truck speed warning system installed on I-70 reduced runaway ramp usage by 24 percent and contributed to a 13 percent drop in crashes involving trucks and excessive speeds.(May 1997)

Alternating blank out signs installed at rail crossings near Denver resulted in a 61.3 percent reduction in crashes. (01/02/2014)

Pedestrian gate presence reduces violation propensity at rail crossings, providing public safety benefits.(04/01/2013)

In Los Angeles, California, the installation of a "second train coming" warning system at a light rail transit grade crossing reduced risky behavior of pedestrians and surveyed pedestrians felt that safety was improved.(November 2002)

In Baltimore, a "second train coming" warning system decreased the frequency of the most common risky behavior at crossings (i.e., drivers that crossed the tracks after the protection gates began to ascend from the first train before the protection gates could be redeployed for the second train) by 26 percent.(November 2002)

In San Antonio, a modeling study found that if traffic congestion were to increase by 25 percent, posting nearby railroad crossing closing delays on freeway dynamic message signs would reduce crashes by 8.7 percent.(October 2000)

In San Antonio, a modeling study found that if traffic congestion were to increase by 25 percent, posting nearby railroad crossing closing delays on freeway dynamic message signs would reduce total network delay by up to 6.7 percent.(October 2000)

In Ames, Iowa, an automated horn warning system that alerted motorists and pedestrians of oncoming trains reduced the area impacted by noise levels greater than 80 dBA from 171 acres to less than 6 acres.(2000)

In Ames, Iowa, a survey of area residents indicated that 78 percent preferred an automated horn warning system that reduce the area impacted by excessive noise from 171 acres to less than 6 acres. (2000)

An automated enforcement systems in California decreased highway-rail grade crossing violations by up to 92 percent.(June 1998)

Automated enforcement systems have reduced highway-rail crossing violations by 78 to 92 percent along two corridors in Los Angeles, California.(17 March 1995)

Wrong-way driver thermal detection system in Phoenix addressed 33 near-incidents in first six months of operation.(8/8/2018)

Crash-conflict models suggests a 50 percent AV market penetration rate can reduce crashes at four-legged signalized intersections by 24 percent.(7-11 January 2018)

Rapid deployment of DSRC for connected vehicles can save thousands of lives, regardless of whether a later transition to C-V2X proves advantageous.(12/12/2017)

The annual number of near-crash events at test sites equipped with intersection collision warning systems in Minnesota decreased by approximately 26 percent.(October 2017)

Rural Intersection Active Warning System trialed in New Zealand demonstrates ability to slow down motorists, resulting in a 71 percent decrease in crashes.(08/05/207)

FHWA national study finds intersection conflict warning systems reduce total crashes by 27 percent for two-lane at two-lane intersections(06/01/2016)

91 percent of volunteer drivers that tested V2V communications safety features indicated they would like to have these technologies on their personal vehicle.(05/21/2012)

Vehicle-to-vehicle applications can have positive benefit-to-cost ratios at fleet penetration rates above 6.1 percent.(04/29/2010)

In Hennepin County, MN, an intersection warning system reduced traffic conflicts and received very positive feedback from the public.(2010)

In Hennepin County, MN, a public survey reported nearly 80 percent of respondents had improved awareness of approaching traffic after the installation of the intersection warning system.(2010)

Initial research suggests that most drivers will respond to intersection collision warning systems and slow or stop appropriately.(22-26 January 2006)

Intersection collision avoidance systems deployed at intersections with high crash frequencies or high rates of severe injury are projected to recoup initial costs within one year, through a reduction in crashes.(September 2003)

In a rural area of Virginia, a collision countermeasure system installed on a two-way stop-controlled intersection reduced vehicle speeds by 2.4 mi/hr, and increased the average projected time to collision from 2.5 to 3.5 seconds.(1-4 May 2000)

Left Turn Assist

Cooperative Intersection Collision Avoidance Systems improve safety and offer an alternative to traffic signals at rural intersections(October 2010)

Stop Sign Assist

In-vehicle adaptive stop display results in more compliant behavior compared to the traditional stop sign.(07/30/2015)

Dynamic roadside warning systems that alert drivers of opposing traffic at rural intersections can decrease roll-throughs up to 22 percent.(February 2014)

Most professional truck drivers interviewed in Ohio and California expressed favorable views of on-board connected vehicle safety applications installed on Class 8 commercial vehicles.(01/31/2014)

"Vehicle Entering When Flashing" Signs at stop-controlled intersections in North Carolina yield a 7 percent reduction in crashes. (11/14/2012)

Cooperative Intersection Collision Avoidance Systems improve safety and offer an alternative to traffic signals at rural intersections(October 2010)

Traffic Control Violation Warning

Deployment of a dilemma zone protection system reduced the maximum length of the dilemma zone by 30 percent at a rural intersection in Maryland.(July 2017)

Deployment of a dilemma zone protection system reduced the maximum length of the dilemma zone by 30 percent at a rural intersection in Maryland.(July 2017)

Intelligent advanced warnings of end-of-green at signalized intersections led to more stopping and milder deceleration compared to no warnings.(03/01/2014)

In-vehicle warning systems that provide drivers with auditory alerts of approaching red-light running vehicles can reduce collisions by 75 percent.(02/21/2014)

Autonomous vehicles issuing "high-content" communications to pedestrians were rated as being more trustworthy and reassuring by a focus group set of participants with visual disabilities.(04/25/2020)

Affirmative street-crossing notifications were found to be more reliable and trusted than negative notifications in a sample set of older pedestrians.(03/01/2020)

A study in Hubei, China demonstrated how virtual reality training can reduce risky pedestrian behaviors.(01/02/2020)

Current generation pedestrian crash avoidance systems can reduce vehicle-pedestrian collisions by 40 percent under certain conditions.(10/01/2019)

Driver compliance at crosswalks increased 10 to 45 percent after smart crosswalk systems were implemented in British Columbia. (12/01/2018)

Pedestrians receiving alerts while texting chose larger gaps, were more discriminating in gap choices, and better timed their crossing than those texting without warnings.(January 7-11, 2018)

Pedestrian Crash Avoidance/Mitigation Systems can reduce up to 24 percent of annual vehicle-pedestrian crashes where fatalities are involved.(April 2017)

Bluetooth-based detection systems coupled with flashing beacons activated by approaching school buses is the most cost-effective strategy to enhance safety at school bus stops.(January 2017)

Heads-up display showing stop and caution warning signs helped older drivers brake sooner in German driving simulator study.(10/14/2015)

A benefit-to-cost assessment shows that a Bluetooth-based system using flashing beacons is the recommended solution to warn drivers of an upcoming school bus stop.(02/01/2016)

A prototype intelligent pedestrian traffic signal system tested at an intersection in Valladolid, Spain successfully reduced pedestrian wait times, resulting in a 23 percent reduction of pedestrian crowding at crosswalks.(02/01/2016)

A prototype intelligent pedestrian traffic signal system tested at an intersection in Alcalá de Henares, Spain reduced serious pedestrian-vehicle conflicts by 20 percent.(02/01/2016)

Presence of pedestrian countdown signals in Michigan reduces crashes involving pedestrians age 65 years and older by 65 percent.(11/15/2015)

Pedestrian detection system sufficiently warns driver before collision with pedestrian in 69 percent of cases.(06/24/2015)

Brake assist systems and autonomous emergency braking systems were able to avoid vehicle-pedestrian crashes 12 percent and 42 percent of the time, respectively.(06/24/2015)

Prototype pedestrian warning system has potential to minimize noise pollution.(06/02/2015)

23 percent of pedestrians reported that a crosswalk transit vehicle turn warning system helped them avoid a collision with a bus.(May 2015)

Benefit-to-cost ratios for buses equipped with pedestrian warning systems were baselined at 28:1.(May 2015)

Performance of transit-specific connected vehicle safety applications in Safety Model Deployment show promise but would benefit from more precise location determination and pedestrian detection technology.(November 2014)

Pedestrian Crash Avoidance/Mitigation (PCAM) technologies result in 18.7 percent reduction in pedestrian injuries.(04/01/2014)

HAWK pedestrian beacon shows 69 percent reduction in crashes involving pedestrians.(June 2012)

Pedestrian control devices reviewed by the Oregon Department of Transportation prompt driver compliance rates up to 98 percent.(March 2012)

Simulation models show that collision warning systems with full auto-brake and pedestrian detection features can reduce pedestrian fatalities by 24 percent.(12/01/2010)

In Miami-Dade County, ITS pedestrian safety measures showed an increase in pedestrian safety by significantly reducing drivers right on red violations from 40 percent to 13 percent and increasing drivers yielding to pedestrians by up to 92 percent.(08/25/08)

Vehicle-pedestrian conflicts were reduced by 89 percent in the first half of the crossing and 43 percent in the second half with automated pedestrian detection at intersections in Los Angeles, California; Rochester, New York; and Phoenix, Arizona. (Spring/Summer 1999)

Multi-state analysis suggests active safety and advanced headlighting systems have contributed to a 46 percent and 81 percent reduction in forward and rear collisions, respectively.

Red-light camera systems can have positive impacts on driver behavior.(June 2018)

Rapid deployment of DSRC for connected vehicles can save thousands of lives, regardless of whether a later transition to C-V2X proves advantageous.(12/12/2017)

In a pilot test, collision avoidance warning systems contributed to a large reduction in near-miss events, though bus driver acceptance was mixed.(05/19/2017)

In a pilot test, bus drivers using in-vehicle collision avoidance warning systems were involved in 72 percent fewer near-miss events than a control group where the warning feature was turned off.(05/19/2017)

Buses equipped with collision avoidance warning systems have potential to reduce insurance claims by 58.5 percent.(05/19/2017)

Autonomous vehicles that can detect imminent rear-end collisions and quickly accelerate using on-demand power from electric motors can reduce whiplash injuries by 40 to 65 percent.(9/11/2015)

Speed cameras in Montgomery County, Maryland reduce crashes resulting in fatal or serious injuries by 49 percent.(August 2015)

Low speed autonomous emergency braking (AEB) can reduce rear-end crashes by 38 percent.(May 2015)

Wrong-way driving deterrent system in Florida successfully self-corrects all instances of wrong-way drivers, with zero crashes being reported during pilot period.(2015)

Performance of transit-specific connected vehicle safety applications in Safety Model Deployment show promise but would benefit from more precise location determination and pedestrian detection technology.(November 2014)

V2V intersection and left turn assist applications can reduce crashes and injuries and may save between 777 to 1,083 lives per year.(08/01/2014)

Electronic Stability Control (ESC) saved an estimated 1,144 lives among passenger vehicle occupants in 2012.(06/01/2014)

San Antonio pilot program results in up to 30 percent reduction of wrong way (WW) driving incidents.(May/June 2014)

70 percent of drivers in a large-scale field operational test felt that forward collision warning systems increased safety.(11/21/2012)

Green Routing System in Buffalo-Niagara Region shows over 16 percent reduction in CO and NOx.(March 2012)

Electronic Stability Control (ESC) systems can reduce the risk of fatal crashes by 33 percent.(May 2010)

Widespread deployment of integrated countermeasure systems could prevent over 48 percent of rear-end, run-off-road, and lane change crashes.(August 2005)

Intersection collision avoidance systems deployed at intersections with high crash frequencies or high rates of severe injury are projected to recoup initial costs within one year, through a reduction in crashes.(September 2003)

In England, a variable speed limit system on the M25 freeway increases average travel times, but promotes proper following distances between vehicles and creates smoother traffic flow.(14 March 1997)

Forward Collision Warning

Blind spot warning technology contributes to a 23 percent reduction in lane change injury crashes.(7/26/2019)

Driver Assistance vehicle technologies have potential to prevent 1.6 million crashes per year.(02/01/2019)

Driving simulator participants equipped with heads-up display (HUD) forward collision warning systems experienced 35 percent fewer near-crash events under fog conditions.(August 2018)

Simulation found that connected vehicles can reduce secondary crash risk by one-third in areas with high-volume traffic and 25 percent connected vehicle market penetration.(08/05/2017)

Front crash detection, lane maintenance, and blind spot detection technologies have the potential to prevent 8,000 two-vehicle crashes with motorcycles per year.(August 2017)

Drivers are significantly more likely to identify pedestrian and vehicle hazards when presented with visual warnings from forward collision warning systems.(June 26 - 29, 2017)

Widely deployed in-vehicle Advanced Driver Assistance Systems (ADAS) have potential to reduce crash rates by 47 percent.(June 2017)

More than half of the respondents to a Texas-wide survey indicated $0 willingness-to-pay for self-driving technology (Level 3 or Level 4); however, comparatively fewer (only around 38 percent) indicated $0 willingness-to-pay to add connectivity.(March 2017)

Texas study estimates that CAVs could have a $27,000 net benefit per vehicle with a 90 percent market penetration.(March 2017)

Forward collision warning (FCW) alone, low-speed autonomous emergency braking (AEB), and FCW combined with AEB that operates at highway speeds reduced rear-end striking crash involvement rates by 27 percent, 43 percent, and 50 percent, respectively.(February 2017)

A nationwide traveler survey finds that blind-spot monitoring and emergency automatic braking are the two most appealing automated vehicle technologies.(11/01/2016)

Heads-up display showing stop and caution warning signs helped older drivers brake sooner in German driving simulator study.(10/14/2015)

Deployment of blind spot monitoring, lane departure warning, and forward collision warning systems on all light-duty vehicles in the U.S. could provide an annual safety benefit of $18 billion to $202 billion annually.(10/01/2016)

Connected vehicles with automated braking assist technology can avoid 37 to 86 percent of crashes.(06/01/2015)

V2V intersection and left turn assist applications can reduce crashes and injuries and may save between 777 to 1,083 lives per year.(08/01/2014)

Most professional truck drivers interviewed in Ohio and California expressed favorable views of on-board connected vehicle safety applications installed on Class 8 commercial vehicles.(01/31/2014)

Advanced Collision Avoidance Technologies (ACATs) range in effectiveness from 7 to 74 percent.(01/01/2014)

A modeling effort found that forward collision avoidance systems can prevent or mitigate up to 31 percent of all collisions.(06/28/2013)

Connected vehicle warning systems and autonomous emergency braking can reduce fatalities by 57 percent.(02/01/2013)

Forward collision warning systems with adaptive braking and anticipatory collision safety features can mitigate severity in 53 percent of rear-end collisions.(01/01/2013 12:00:00 AM)

After deployment of a low-speed collision avoidance system on the Volvo XC60 and S60, insurance claim frequency decreased by 15 and 16 percent, respectively, compared to similar vehicles.(December 2012)

With full market penetration adaptive cruise control and forward collision warning systems (ACC+FCW) have benefit-to-cost ratios ranging from 3.9 to 5.2 for trucks and 0.5 to 0.7 for cars.(11/30/2012)

Autonomous emergency braking (AEB) systems can reduce the number of moderate to severe injuries in head-on collisions by 73 percent.(09/12/2012 )

91 percent of volunteer drivers that tested V2V communications safety features indicated they would like to have these technologies on their personal vehicle.(05/21/2012)

Casualty benefits from advanced emergency braking systems in passenger vehicles have potential benefit-to-cost ratios ranging from 0.07 to 2.78.(November 2011)

Connected vehicle technologies can improve roadway capacity by 20 percent with relatively low market penetration .(09/07/2011)

In Michigan, 108 volunteers who drove 16 vehicles equipped with crash warning systems indicated the blind-spot detection component of the lane-change/merge crash warning system was the most useful and satisfying aspect of the integrated system. (June 2011)

Light vehicles that automatically activate in-vehicle alerts, seat belt tensioners, and braking systems can reduce fatalities by 3.7 percent.(June 2011)

In Michigan, 8 of 108 volunteers who drove light vehicles equipped with an integrated crash warning system indicated the system prevented them from having a crash.(June 2011)

Active and passive in-vehicle safety technologies are expected to decrease fatalities up to 16 percent.(April 2011)

In-vehicle technologies that use automated braking to prevent rear-end collisions can reduce drivers injured by 19 to 57 percent.(October 2010)

A benefit-cost analysis of Forward Collision Warning Systems for the trucking industry found benefits per dollar spent values of $1.33 to $7.22 with varying estimates of efficiency and annual VMT.(02/27/2009)

Forward collision warning systems have potential to prevent 23.8 percent of crashes involving large trucks.(2009)

A Side Object Detection System (SODS) for transit buses was cost-effective with a baseline benefit-cost ratio of 1.43 and a ratio range of 0.37-3.55.(August 2007)

Evaluation data show that forward collision warning systems (CWS) alone, and CWS bundled with adaptive cruise control (ACC) and advanced braking systems (AdvBS) can improve safety for commercial vehicles.(21-25 January 2007 )

The initial costs for collision warning systems (CWS) can be high making it difficult for fleets that experience few crashes to deploy cost-effective solutions.(1/5/2007)

Trucks equipped with collision warning systems, adaptive cruise control, and advanced braking systems have the potential to reduce truck-initiated rear-end crashes by up to 28 percent.(1/5/2007)

Approximately 80 percent of the truck drivers surveyed indicated that collision warning systems made them more vigilant, helped them maintain a safer following distance, and increased their reaction time and awareness.(1/5/2007)

An integrated system of forward collision warning and adaptive cruise control functions was projected to prevent about 10 percent of all rear-end crashes, and 10 to 20 percent of severe near-crashes.(April 2006)

Widespread deployment of integrated countermeasure systems could prevent over 48 percent of rear-end, run-off-road, and lane change crashes.(August 2005)

Survey data collected from tractor trailer drivers with one to three years of experience driving with intelligent vehicle safety systems (IVSS) indicate that IVSS lowers their perceived workload by 14 to 21 percent over a range of driving conditions.(28 October 2004)

In the central area of Chicago, a 2004 feasibility study indicated that collision warning systems on buses would not be cost-effective in the near term.(August 2004)

In Germany, a simulation study found that with 50 percent of vehicles equipped, the braking control features of a collision avoidance system would contribute to a 45 to 60 percent decrease in collisions when the leading vehicle brakes.( 8-12 November 1999)

Freightliner to Offer Collision Warning on New Truck Line(20 November 1995)

Lane Change Assistance

Universal deployment of a Lane Change Assist system on motorcycles could prevent 17 to 24 percent of motorcycle crashes resulting in injuries in Germany.(June 5 - 8, 2017)

Most professional truck drivers interviewed in Ohio and California expressed favorable views of on-board connected vehicle safety applications installed on Class 8 commercial vehicles.(01/31/2014)

Autonomous emergency braking (AEB) systems can reduce the number of moderate to severe injuries in head-on collisions by 73 percent.(09/12/2012 )

91 percent of volunteer drivers that tested V2V communications safety features indicated they would like to have these technologies on their personal vehicle.(05/21/2012)

In Michigan, 108 volunteers who drove 16 vehicles equipped with crash warning systems indicated the blind-spot detection component of the lane-change/merge crash warning system was the most useful and satisfying aspect of the integrated system. (June 2011)

In Michigan, 8 of 108 volunteers who drove light vehicles equipped with an integrated crash warning system indicated the system prevented them from having a crash.(June 2011)

Active and passive in-vehicle safety technologies are expected to decrease fatalities up to 16 percent.(April 2011)

In Florida, camera-based systems with a regular angle lens reduced 43 percent of blind zones and wide-angle camera systems entirely eliminated blind zones during controlled tests among 28 transit bus drivers. (March 2010)

Widespread deployment of integrated countermeasure systems could prevent over 48 percent of rear-end, run-off-road, and lane change crashes.(August 2005)

Freightliner to Offer Collision Warning on New Truck Line(20 November 1995)

Lane Departure Warning

Blind spot warning technology contributes to a 23 percent reduction in lane change injury crashes.(7/26/2019)

Driver Assistance vehicle technologies have potential to prevent 1.6 million crashes per year.(02/01/2019)

Crash statistics show that lane departure warning systems have reduced all relevant crashes by 11 percent, and all relevant injury crashes by 21 percent, controlling for driver demographics.(August 2017)

Widely deployed in-vehicle Advanced Driver Assistance Systems (ADAS) have potential to reduce crash rates by 47 percent.(June 2017)

Deployment of blind spot monitoring, lane departure warning, and forward collision warning systems on all light-duty vehicles in the U.S. could provide an annual safety benefit of $18 billion to $202 billion annually.(10/01/2016)

Advanced Collision Avoidance Technologies (ACATs) range in effectiveness from 7 to 74 percent.(01/01/2014)

Casualty benefits from advanced emergency braking systems in passenger vehicles have potential benefit-to-cost ratios ranging from 0.07 to 2.78.(November 2011)

Drivers recommend use of Integrated Vehicle-Based Safety Systems, but price remains a factor. (June 2011)

In Michigan, 108 volunteers who drove 16 vehicles equipped with crash warning systems indicated the blind-spot detection component of the lane-change/merge crash warning system was the most useful and satisfying aspect of the integrated system. (June 2011)

Integrated Vehicle-Based Safety System use results in 48 percent reduction in lane departure rate for light vehicles, with similar trend for heavy trucks.(June 2011)

In Michigan, 8 of 108 volunteers who drove light vehicles equipped with an integrated crash warning system indicated the system prevented them from having a crash.(June 2011)

Active and passive in-vehicle safety technologies are expected to decrease fatalities up to 16 percent.(April 2011)

A benefit-cost analysis of Lane Departure Warning System for the trucking industry found benefits per dollar spent values of $1.37 to $6.55 with varying estimates of efficiency and annual VMT.(February 2009)

Forward collision warning systems have potential to prevent 23.8 percent of crashes involving large trucks.(2009)

In the Netherlands, a five month field operational test (FOT) of 20 cars equipped with lane departure warning (LDW) systems found that the number of unintentional lane crossings decreased by 35 percent on secondary roads and 30 percent on highways due to the use of LDW.(9-13 October 2007)

A Side Object Detection System (SODS) for transit buses was cost-effective with a baseline benefit-cost ratio of 1.43 and a ratio range of 0.37-3.55.(August 2007)

Widespread deployment of integrated countermeasure systems could prevent over 48 percent of rear-end, run-off-road, and lane change crashes.(August 2005)

Survey data collected from tractor trailer drivers with one to three years of experience driving with intelligent vehicle safety systems (IVSS) indicate that IVSS lowers their perceived workload by 14 to 21 percent over a range of driving conditions.(28 October 2004)

A 1999 FHWA study suggested that lane departure warning systems have the potential to reduce road departure crashes by 10 percent for passenger vehicles and 30 percent for heavy trucks.(December 1999)

In-vehicle computer visioning technology designed to detect and warn truck drivers of lane departure and driver drowsiness reduced fuel consumption by 15 percent, increased safety, and provided drivers with more comfortable working conditions.(20 July 1999)

Obstacle Detection

Blind spot warning technology contributes to a 23 percent reduction in lane change injury crashes.(7/26/2019)

Crash involvement rates in lane-change crashes of all severity types were 14 percent lower among vehicles equipped with blind spot monitoring compared to those without.(August 2017)

A nationwide traveler survey finds that blind-spot monitoring and emergency automatic braking are the two most appealing automated vehicle technologies.(11/01/2016)

Heads-up display showing stop and caution warning signs helped older drivers brake sooner in German driving simulator study.(10/14/2015)

Casualty benefits from advanced emergency braking systems in passenger vehicles have potential benefit-to-cost ratios ranging from 0.07 to 2.78.(November 2011)

Active and passive in-vehicle safety technologies are expected to decrease fatalities up to 16 percent.(April 2011)

NHTSA estimates that annual fatalities in backover crashes would be reduced by 95 to 112 fatalities and annual injuries by 7,072 to 8,374 injuries if all vehicles were equipped with rearview cameras.(December 7, 2010)

Forward collision warning systems have potential to prevent 23.8 percent of crashes involving large trucks.(2009)

The deployment of side object detection systems on 257 transit buses in two different transit agencies reduced the side collision rate per 100,000 Vehicle Miles Traveled by 0.186.(December 15 2008)

A Side Object Detection System (SODS) for transit buses was cost-effective with a baseline benefit-cost ratio of 1.43 and a ratio range of 0.37-3.55.(August 2007)

In Japan, a guidance-vehicles system designed to lead traffic through heavy fog on freeways was projected to have a benefit-to-cost ratio ranging from 1.7:1 to 2.1:1.(6-9 November 2000)

Freightliner to Offer Collision Warning on New Truck Line(20 November 1995)

Rear Impact Warning

Implementing a collision-avoidance algorithm based on safe distance significantly reduces rear-end collisions in heterogenous fleets compared to other methods.(09/10/2018)

A Side Object Detection System (SODS) for transit buses was cost-effective with a baseline benefit-cost ratio of 1.43 and a ratio range of 0.37-3.55.(August 2007)

Road Departure Warning

Crash statistics show that lane departure warning systems have reduced all relevant crashes by 11 percent, and all relevant injury crashes by 21 percent, controlling for driver demographics.(August 2017)

Casualty benefits from advanced emergency braking systems in passenger vehicles have potential benefit-to-cost ratios ranging from 0.07 to 2.78.(November 2011)

In Michigan, 108 volunteers who drove 16 vehicles equipped with crash warning systems indicated the blind-spot detection component of the lane-change/merge crash warning system was the most useful and satisfying aspect of the integrated system. (June 2011)

In Michigan, 8 of 108 volunteers who drove light vehicles equipped with an integrated crash warning system indicated the system prevented them from having a crash.(June 2011)

Widespread deployment of integrated countermeasure systems could prevent over 48 percent of rear-end, run-off-road, and lane change crashes.(August 2005)

A 1999 FHWA study suggested that lane departure warning systems have the potential to reduce road departure crashes by 10 percent for passenger vehicles and 30 percent for heavy trucks.(December 1999)

In-vehicle computer visioning technology designed to detect and warn truck drivers of lane departure and driver drowsiness reduced fuel consumption by 15 percent, increased safety, and provided drivers with more comfortable working conditions.(20 July 1999)

Multi-state analysis suggests active safety and advanced headlighting systems have contributed to a 46 percent and 81 percent reduction in forward and rear collisions, respectively.

Prototype Crash Warning Interface displays for Connected Vehicle-based motorcycle Crash Warning System show considerable promise for implementation.(10/20/2015)

V2V intersection and left turn assist applications can reduce crashes and injuries and may save between 777 to 1,083 lives per year.(08/01/2014)

Advanced Automated Collision Notification

EU-mandated automated emergency call technology, eCall, is expected to reduce response time to road accidents by up to 50 percent and help save up to 1,500 lives per year.(03/27/2018)

Autonomous emergency braking (AEB) systems can reduce the number of moderate to severe injuries in head-on collisions by 73 percent.(09/12/2012 )

Korean study finds Automatic Crash Information Notification Systems would reduce freeway fatalities by 11.8 to 18.1 percent.(August 1, 2012)

Automatic Crash Notification (ACN) systems can reduce road traffic deaths by 1.5 to 15 percent.(September 2009)

An enhanced Automatic Collision Notification System enables three quarters (75.9 percent) of injured occupants to be correctly identified as seriously injured, by using only data automatically collected and transmitted by the vehicles.(June 2009)

Implementing an enhanced Automatic Collision Notification (ACN) system in all passenger vehicles in the US could help improve outcomes for over 15,200 drivers each year involved in moderate to high severity crashes. (June 2009)

Over a 20-year lifecycle, NG9-1-1 would likely cost about the same as maintaining the status quo of the current 9-1-1 system, but deliver 80 percent additional value.(03/05/2009)

In Erie County, New York, a field operational test found that automated collision notification systems reduced incident notification time from an average of 3 minutes to less than 1 minute.(February 2001)

Mayday/Automated Collision Notification

Two surveys asked motor carriers what the motivation was for safety technology installation. A clear majority of the respondents indicated that crash reduction (68%) and lower insurance rates (52%) were key benefits.(22-26 January 2006)

CVO inspectors participating in CVISN focus groups felt that CVISN technology saved time, and improved the speed and accuracy of data reporting. (March 2002)

In Puget Sound, Washington, a survey of drivers equipped with in-vehicle emergency communications found that 95 percent of respondents felt "more secure" with Mayday voice communications, and 70 percent felt "more secure" with data communications.(September 1997)