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Crash Prevention & Safety > Collision Avoidance > Obstacle Detection


Obstacle detection systems use vehicle-mounted sensors to detect obstuctions, such as other vehicles, road debris, or animals, in a vehicle's path and alert the driver.


Advanced emergency braking system with pedestrian detection - Capital cost/unit - $1540(November 2011)

Advanced emergency braking system with pedestrian detection - Capital cost/unit - $1540(November 2011)

Advanced emergency braking system with pedestrian detection - Capital cost/unit - $1540(November 2011)

Active pedestrian detection system - Capital cost/unit - $4500(April 2011)

Active pedestrian detection system - Capital cost/unit - $4500(April 2011)

Side Object Detection System - Capital cost/unit - $2000 - O&M cost/unit - $77.38 - Lifetime - 12 years(December 15 2008)

Training - Capital cost/unit - $14.13(December 15 2008)

Training - Capital cost/unit - $15.04(December 15 2008)

Rear Object Detection System (Transit Bus) - Capital cost/unit - $2550 - O&M cost/unit - $141(August 2007)

Side Object Detection System (Transit Bus) - Capital cost/unit - $2550 - O&M cost/unit - $141(August 2007)

Forward Object Detection System (Transit Bus) - Capital cost/unit - $2550 - O&M cost/unit - $141(August 2007)

Pedestrian Detection System (Transit Bus) - Capital cost/unit - $2550 - O&M cost/unit - $141(August 2007)

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)

During system testing, CV Pilot sites discover the importance of having expertise in detecting and mitigating interferences with radio frequency and GPS signals(12/13/2018)

Refine institutional arrangements when deploying connected vehicle technology to outline the expectations of partners in terms of service, outcomes and reporting.(12/13/2018)

Refine proper antenna placement on connected vehicles (particularly commercial vehicles) to reduce DSRC ‘shadow’ areas where DSRC signal is degraded.(12/13/2018)

Connected vehicle deployers are encouraged to utilize multi-vendor outsourcing and to source suppliers early to create a collaborative environment that enables as much parallel work as possible.(12/13/2018)

Connected vehicle deployers should assess field equipment and organizational capabilities that will be needed to support core CV components.(12/13/2018)

Use local student mechanics where possible to perform CV equipment installations to provide students with required trainee experience and to contain costs(11/01/2017)

Obtain working prototypes of CV applications from the USDOT’s Open Source Application Data Portal (OSADP) to prevent time spent doing duplicative software development(11/01/2017)

Allow for increased coordination with the Interdepartmental Radio Advisory Committee (IRAC) early on in the DSRC licensing process to help reduce what is traditionally a very lengthy process.(11/01/2017)

Include technical, operations, and legal personnel in stakeholder meetings to address the requirements of the CV deployment and ensure that participants' privacy is being maintained(11/01/2017)

Incorporate standardized over-the-air update procedures to permit efficient firmware updates for connected vehicle devices.(11/01/2017)

When installing antennas on streetcars to support wireless connected vehicle applications, verify that radio performance is not compromised by interference from high-voltage power lines.(11/01/2017)

Publish all CV planning documentation to serve as an example for other early deployers to follow(11/01/2017)

Integrate stop and caution warning signage into heads-up displays to help older drivers brake sooner for potential hazards.(10/14/2015)

Specify and implement high accuracy vehicle location and pedestrian detection technology for connected vehicle transit safety applications.(November 2014)

Deploy side object detection systems for transit buses that have proven effectiveness in transit operating environments and been accepted by transit operators.(December 15 2008)

Ensure that ITS field operations tests use technologies and applications that are proven to be deployment ready.(26 September 2003)