Cooperative Automated Transportation (CAT)

Cooperative Automated Transportation

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

FHWA issues interim approval of Rectangular Rapid-Flashing Beacons at crosswalks

The new IA-21 allows for the optional use of RRFBs as pedestrian-activated visibility enhancements for pedestrian and school crossing warning signs under limited conditions.

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In a memorandum released on March 20, the Federal Highway Administration (FHWA) issued “Interim Approval (IA)-21 – Rectangular Rapid-Flashing Beacons (RRFBs) at Crosswalks.” The new IA-21 allows for the optional use of RRFBs as pedestrian-activated visibility enhancements for pedestrian and school crossing warning signs under limited conditions.

ATSSA explores importance of infrastructure for autonomous vehicles at ITS America

Session to highlight pavement markings, work zones, signage, and uses for vehicle fleet data

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Preparing Infrastructure for Automation Levels 1-3” will examine areas within roadway infrastructure that will be affected with the emergence of Connected and Automated Vehicles (CAVs).

Engineering students can now apply to enter the 2019 Traffic Control Device Challenge

Traffic Control Device Challenge promotes roadway safety innovation

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The American Traffic Safety Services Association (ATSSA) and the Transportation Research Board (TRB) Standing Committee on Traffic Control Devices (AHB50) have announced the launch of the 2019 Traffic Control Device (TCD) Challenge.

Future of roadway safety industry, automated vehicle technology discussed in ATSSA member visit

Mercer Strategic Alliance President Rob Dingess discusses AVs and the future of the industry

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Rob Dingess, president of the Mercer Strategic Alliance, came to ATSSA headquarters to discuss automated and connected vehicle technology, and what it means for the association and the future of the roadway safety industry.

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