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

Updates to 'Q&A' guidance document to implement MASH 2016 issued Updates to 'Q&A' guidance document to implement MASH 2016 issued

Updates to 'Q&A' guidance document to implement MASH 2016 issued

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Additional responses to questions submitted to The American Association of State Highway and Transportation Officials (AASHTO) and the Federal Highway Administration (FHWA) regarding the testing of roadside safety hardware under the Manual for Assessing Safety Hardware (MASH) 2016 were released Monday. 

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MASH to become 'performance specification' MASH to become 'performance specification'

MASH to become 'performance specification'

AASHTO endorses motion to provide criteria for product owners to test and certify traffic safety devices

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At its meeting of October 9 in St. Louis, Missouri, the American Association of State Highway and Transportation Officials’ (AASHTO) Board of Directors endorsed a motion put forth by the Council of Highways and Streets (Chief Engineers) to develop the Manual for Assessing Safety Hardware (MASH) into a “performance specification.” 

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Keeping roadways safe: DOTs highlight countermeasures designed to reduce traffic fatalities Keeping roadways safe: DOTs highlight countermeasures designed to reduce traffic fatalities

Keeping roadways safe: DOTs highlight countermeasures designed to reduce traffic fatalities

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Every roadway countermeasure makes a difference. Roundabouts, highly reflective signs, pavement markings and all traffic control and infrastructure devices are critical to enhancing safety on U.S. roadways. Countermeasures can mitigate against human behavior-related crashes and ultimately save lives.  

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ATSSA flagger training: The importance of being certified ATSSA flagger training: The importance of being certified

ATSSA flagger training: The importance of being certified

How knowing the standards helps the ‘first line of defense’ protect all roadway workers

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ATSSA's flagger training courses have been teaching individuals how to be safe and effective flaggers for nearly 50 years. These courses help trainees understand why proper flagger operations are essential, identify standard flagger control references, and learn standard flagger practices for many situations—both expected and unexpected.
While the association has taken great strides to provide and adequately train individuals across the country, there still are infrequencies when it comes to having consistent standards on a national scale.

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Will Connected and Autonomous Vehicles change the landscape of signage standardization? Will Connected and Autonomous Vehicles change the landscape of signage standardization?

Will Connected and Autonomous Vehicles change the landscape of signage standardization?

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On June 19, 2019 at the National Committee on Uniform Traffic Control Devices (NCUTCD) Connected and Automated Vehicle (CAV) Task Force Meeting, updates on signage and pavement marking uniformity were the main topics of discussion. With CAVs entering U.S. roadways every day, the need for uniformity is growing exponentially. Transformational technologies on CAVs raise new questions for groups like the NCUTCD, such as signage that appears on the exterior of CAVs. For instance, many autonomous vehicles (AVs) manufacturers have their own signage displays on the exterior of the vehicle that alert human drivers and pedestrians of the CAV’s intentions on the roadway.

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