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Driver Assistance > Adaptive Cruise Control


Adaptive cruise control systems maintain a driver set speed wihout a lead vehicle, or a specified following time if there is a lead vehicle and it is traveling slower than the set speed.


Simulation study on human interactions with CACC vehicles finds that local coordination methods scale more efficiently to market penetration than ad hoc methods.(9/29/2019)

Cybersecurity, reliability, and shared cars are the top public concerns regarding Autonomous Vehicles in Austria.(09/20/2019)

Current generation adaptive cruise control systems do not prevent phantom traffic jams.(05/09/2019)

Validate the performance of dedicated short-range communication (DSRC) radios for cooperative adaptive cruise control (CACC) applications by testing receiver signal strength, signal delay, and packet error rates.(04/01/2017)

Maintain active communications regardless of system states, faults, or emergency kill switches to ensure the safety and function of cooperative adaptive cruise control truck platoons.(March 2015)

Incorporate proven technologies and false alarm reduction strategies in the design of future Automotive Collision Avoidance Systems (ACAS).(April 2006)

Sixty-three (63) percent of city officials surveyed agreed that autonomous vehicles can improve the quality of life in U.S. cities.(05/24/2019)

Using a combination of surveys and modeling, researchers find that Autonomous Vehicles may increase the number of trips people take and hence traffic congestion.(2019)

Simulation models estimate connected automated vehicles (CAVs) can reduce net vehicle energy consumption by 11 to 55 percent.(01/07/2018)

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)

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

California study finds cooperative adaptive cruise control reduced headways from 2.05 seconds to 0.80 seconds and increased flow from 1,400 to 3,000 vehicles per hour.(05/19/2017)

Eco-Cooperative Adaptive Cruise Control field test yielded fuel consumption reduction of 37.4 percent and travel time reduction of 8.6 percent.(January 2017)

Cooperative Adaptive Cruise Control improves maximum throughput at a market penetration of 40 percent.(2017)

A simulation of connected-autonomous vehicles operating in Ann Arbor, Michigan demonstrated small increases in VMT (2 percent) coupled with disproportionate increases in energy usage.(07/10/2016)

The GlidePath Cooperative Adaptive Cruise Control (CACC) system installed on a partially automated vehicle improved its fuel economy by 22 percent at a test track in Virginia.(January 2016)

Cooperative Adaptive Cruise Control in trucks could yield energy savings of 20-25 percent.(March 2015)

Eco-Speed Harmonization and Eco-Connected Adaptive Cruise Control applications show results of up to a 22 percent reduction in energy and a 33 percent reduction in travel time.

Eco-Cooperative Adaptive Cruise Control algorithm demonstrates average savings of 15 percent in fuel consumption while reducing average delay by 80 percent within the traffic signalized intersection vicinity.(03/28/2014)

Automated vehicles can save more than 1000 lives annually with 10 percent market penetration.(12-16 January 2013)

Automated vehicles (AVs) can reduce congestion and save $1,400 per year per AV with 10 percent market penetration.(12-16 January 2013)

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)

Adaptive cruise control and forward collision warning systems can reduce harsh braking events by 67 percent.(11/21/2012)

Almost 80 percent of drivers in a large-scale field operational test felt that adaptive cruise control increased driver comfort and safety.(11/21/2012)

Adaptive cruise control can reduce fuel consumption by 2.8 percent on highways.(11/21/2012)

Autonomous vehicles with full market penetration can use intelligent intersections to manage approach speeds and reduce delays by 85 percent.(9/1/2012)

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

Local traffic measures such as controlling traffic demand, banning heavy duty vehicles or restricting speeds activated only during periods of peak pollution can contibute to significant reductions in air quality measures.(10-14 January 2010)

Mandatory dynamic automatic controlling Intelligent Speed Assistance (ISA) could reduce fatal crashes over the entire road network by more than 50 percent, whereas static informing ISA could still give a reduction of almost 20 percent.(November 2008)

A majority (76 percent) of drivers with Adaptive Cruise Control said that if they purchased their same vehicle again, they would get the same technology again.(September 2008)

Users of Adaptive Cruise Control report they tend to change lanes less frequently when using the system, but many drivers are unaware of the limitations of technology.(September 2008)

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)

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)

Evaluation of the Environmental Effects of Intelligent Cruise Control (ICC) Vehicles(7-11 January 2001)

In Torino, Italy, an automated speed control system was able to automatically adjust vehicle following distances, and use real-time TMC signal control timing data to regulate intersection approach speeds and optimize travel speeds between green lights to improve travel times by up to 10 percent.(8-12 November 1999)

In Torino, Italy, a simulation study found that an automated speed control system designed to optimize travel speeds between green lights can reduce fuel consumption by 8.3 to 13.8 percent, reduce CO2 emissions by 3.9 to 5.4 percent; reduce hydrocarbon emissions by 4.2 to 6.9 percent, and reduce NOx emissions by 7.9 to 11.3 percent.(8-12 November 1999)

In Torino, Italy, a simulation study found that an automated speed control system designed to optimize vehicle speeds between green lights can increase link capacity by 3.3 to 6.3 percent.(8-12 November 1999)

In Torino, Italy, an automated speed control system designed to optimize travel speeds between green lights was judged as good or very good by 55 percent of drivers surveyed.(8-12 November 1999)

In Michigan, a survey of test drivers indicated that participants preferred using "adaptive cruise control" over "conventional cruise control" or "manual control" in terms of comfort, convenience, and enjoyment; however, with respect to safety, drivers preferred "manual control."(October 1999)

In Michigan, an evaluation of adaptive cruise control indicated that the technology was effective at reducing risky lane changes in response to slower traffic, but took 0.3 seconds longer than manually controlled vehicles to respond to lead vehicle brake lights.(October 1999)

In Michigan, an evaluation of adaptive cruise control indicated that the technology would improve roadway capacity under conditions of high velocity and short time-headway settings (one second), and reduce road capacity if longer time-headway settings (two seconds) were used.(October 1999)

In Michigan, an analysis of adaptive cruise control indicated that the technology reduced fuel consumption and emissions by limiting throttle fluctuations.(October 1999)

A preliminary analyses of the potential impacts of an automated highway system on the Long Island Expressway and I-495 Capital Beltway was projected to improve capacity and reduce travel time by 38 to 48 percent.(October 1995)

Driver assistance technologies can add from $300 to $10,800 to the purchase price of a new vehicle; most systems are $4500 or less.(3/31/2015)

Cost estimates to install collision warning systems (CWS) range from $2,000 to $3,000 per tractor. Bundled packages of CWS and adaptive cruise control cost approximately $2,300; the cost is approximately $6,300 if an advanced braking system is added.(1/5/2007)

Various safety- and driver assistance-related systems such as blind spot monitoring, route guidance, adaptive cruise control, automatic collision notification, and lane departure warning are available for purchase as an individual option or a bundled-options package at costs that vary widely.(February 2006)

The average cost for a collision warning system among four trucking companies is $2,500 per vehicle.(15 July 2001)

Advanced emergency braking system - Capital cost/unit - $334(November 2011)

Advanced emergency braking system - Capital cost/unit - $334(November 2011)

Advanced cruise control - Capital cost/unit - $2754(April 2011)

Advanced cruise control - Capital cost/unit - $2754(April 2011)

Advanced Cruise Control - Capital cost/unit - $509.33(September 16, 2009)

Conventional Cruise Control - Capital cost/unit - $509.33(September 16, 2009)

Advanced Cruise Control - Capital cost/unit - $509.33(September 16, 2009)

Advanced Cruise Control - Capital cost/unit - $509.33(September 16, 2009)

Advanced Cruise Control - Capital cost/unit - $509.33(September 16, 2009)

Advanced Cruise Control - Capital cost/unit - $509.33(September 16, 2009)

Forward Collsion Warning System with Adaptive Cruise Control (Commercial Vehicle) - Capital cost/unit - $2300(02/27/2009)

Adaptive Cruise Control (ACC) - CV - Capital cost/unit - $300(1/5/2007)

Adaptive Cruise Control (ACC) - CV - Capital cost/unit - $300(1/5/2007)

Adaptive Cruise Control (ACC) - CV - Capital cost/unit - $350(1/5/2007)

Collision Warning System + Adaptive Cruise Control - CV - Capital cost/unit - $2300(1/5/2007)

Collision Warning System + Adaptive Cruise Control - CV - Capital cost/unit - $4600(1/5/2007)

Adaptive Cruise Control (ACC) - CV - Capital cost/unit - $400(1/5/2007)

Adaptive Cruise Control (ACC) - CV - Capital cost/unit - $300(1/5/2007)

Collision Warning System + Adaptive Cruise Control - CV - Capital cost/unit - $7100(1/5/2007)

Adaptive Cruise Control (ACC) - CV - Capital cost/unit - $300(1/5/2007)

Adaptive Cruise Control (ACC) - CV - Capital cost/unit - $400(1/5/2007)