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.


SuperUser Account
/ Categories: ATSSA, NWZAW, Press Release

National Work Zone Awareness Week raises awareness of work zone safety

Annual safety campaign reminds roadway users to ‘Drive like you work here’

FREDERICKSBURG, Va. (March 20, 2019) – The 19th annual National Work Zone Awareness Week (NWZAW), happening April 8-12, 2019, will bring national attention to the importance of work zone safety. Each year during NWZAW, public agencies, organizations, and individuals across the country come together to advocate for the women and men who risk their lives in work zones each day to keep our roadways safe.

The national NWZAW media kickoff event will be held at the will be held at the Frederick Douglass Memorial Bridge on April 9, 2019, at 11 a.m. in Washington, D.C., hosted by the District Department of Transportation (DDOT). The theme for NWZAW 2019 is “Work Zones: Drive Like You Work Here”. It aims to reminder people that it is critical to use extra caution in and around work zones, and that regardless of where you work, we all deserve to arrive home safely.

This year, Federal Highway Administration (FHWA) Deputy Acting Administrator Brandye Hendrickson will speak, as well as former Roadway Worker Memorial Scholarship Program recipient Lyndsay Sutton, who lost her father in a work zone crash. More speakers will be announced in the coming weeks.

According to 2017 data from the National Highway Traffic Safety Administration’s Fatality Analysis Reporting System, there were 710 fatal work zone crashes and 799 work zone fatalities, including 132 worker fatalities, underscoring the importance of NWZAW’s mission.

In recent years, the engagement and participation in NWZAW has increased nationwide—with individuals showing their support through social media, hosting events, and participating in Go Orange Day, when advocates will wear orange on April 10 to spread the message of work zone safety.

“As we head into construction season, it is important to remember the individuals who work to keep our roadways safe while they risk being injured, or worse — being killed,” said ATSSA President & CEO Roger Wentz. “For nearly two decades, we have taken time to reflect, remember, and remind the country that roadway workers are there to keep you safe, and we must do all we can to drive in work zones safely. Extra precaution in and around work zones is key when it comes to moving Toward Zero Deaths on our nation’s roadways.”

Media interested in attending the national media kickoff event or media interviews can reach ATSSA at To learn more about NWZAW, visit, and share the message on social media using the hashtags #NWZAW and #Orange4Safety.

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