Cooperative Automated Transportation (CAT)

Roadway Safety in a Cooperative Automated World

Highway automation is not years away, or even days away. It’s here now, causing a number of state transportation agencies to react with initiatives related to preparing and supporting Connected Automated Vehicles (CAVs) on U.S. roadways.


Connected and Automated Vehicles (CAVs)

Cooperative Automated Transportation (CAT) deals with CAVs, which are vehicles capable of driving on their own with limited or no human involvement in navigation and control. Per the definition adopted by the National Highway Traffic Safety Administration (NHTSA), there are six levels of automation (Levels 0-2: driver assistance and Levels 3-5: HAV), each of which requires its own specification and marketplace considerations.


Vehicle-to-Everything (V2X) and Connected and Automated Vehicles (CAVs)

For traffic safety, vehicle-to-everything communications is the wireless exchange of critical safety and operational data between vehicles and anything else. The "X" could be roadway infrastructure, other vehicles, roadway workers or other safety and communication devices. ATSSA members are at the forefront of these technologies, and are working with stakeholders across new industries to see these innovations come to life.


Sensor Technology

CAVs rely on three main groups of sensors: camera, radar, and Light Detection and Ranging (LIDAR). The camera sensors capture moving objects and the outlines of roadway devices to get speed and distance data. Short- and long-range radar sensors work to detect traffic from the front and the back of CAVs. LIDAR systems produce three-dimensional images of both moving and stationary objects. 


For more information about ATSSA’s efforts on CAT and CAV’s and their interaction with our member products check out the resources below.




Resources

Highway automation: How ATSSA members play an important role

CAVs will need to better communicate with roadway devices and infrastructure

Connected and Automated Vehicles (CAVs) rely heavily on ATSSA member products such as pavement markings, signs, and traffic control devices. These products will be an essential factor in the advancement of CAVs and critical in moving toward zero deaths on our roadways.

According to the Federal Highway Administration (FHWA), highway automation is a blossoming frontier for many transportation departments that will affect the roadway devices and infrastructure utilized in localities.

“Automated vehicles have the potential to transform the nation's roadways significantly,” states the FHWA website. “They offer potential safety benefits but also introduce uncertainty for the agencies responsible for the planning, design, construction, operation, and maintenance of the roadway infrastructure.”

Many initiatives are being carried out to strengthen the communication between
CAVs, traffic control devices, and roadway infrastructure. One example is the FHWA’s National Dialogue on Highway Automation, in which ATSSA has participated.

“Participating in the National Dialogue on Highway Automation was a prime example of the direction members of the transportation industry
need to focus on,” said ATSSA Director of New Programs Brian Watson. “Our members play an important role in the advancement to vehicle automation. It’s important to carry on these discussions with auto manufacturers, public agencies, and the transportation community to discuss how we can produce and apply traffic control devices and maintain roadway infrastructure to optimize CAV performance.”

Additionally, ATSSA has been collaborating with the Automotive Safety Council (ASC). Doug Campbell, the council’s president, said that collaborations between members of the automotive industry and the roadway safety infrastructure industry are vital to the progression of highway automation.\

“For the first time in history, we have the roadway infrastructure and vehicle safety sides working together to come up with solutions to improve safety for motorists and to enable CAVs in the future,” Campbell said. “It's been a great learning experience for both groups to come together and understand how each other's products interface and discuss what we can do together going forward.”

ASC has attended three different ATSSA meetings, and the association has been to two of the ASC’s council meetings. Campbell said these initial discussions have been a positive start to further technologies and policies that will further enable highway automation.

“Teaming up together to come up with improved traffic control devices and roadway infrastructure that is uniform across the 50 states will allow the vehicles to use their sensors better—we think is a significant step forward,” Campbell said. 

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