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Transportation officials, advocates, companies and users around the world are talking about how automated vehicles will change transportation as we know it, autonomous vehicles are split into six levels of automation as defined by the Society of Automotive Engineers.
Zero, no automation. One, driver assistance. Two, partial automation. Three, conditional automation. Four, high automation. And five, full automation.
Humans are responsible for monitoring the vehicle and performing most functions in levels one and two, while an automated driving system performs all functions and levels three, four and five.
Vehicles and levels three and up are considered highly automated vehicles.
As vehicles progress to higher levels of automation, less responsibility is put on the driver for monitoring the vehicle.
Here’s how an automated vehicle works.
Several systems work in conjunction with each other to control an automated vehicle.
Radar sensors dotted around the car monitor the position of vehicles nearby.
Video cameras detect traffic lights, read road signs and keep track of other vehicles while also looking out for pedestrians and other obstacles.

Transportation officials and stakeholders globally are discussing the impact of automated vehicles, classified into six levels by the Society of Automotive Engineers, from no automation to full automation. In higher levels (three to five), automated systems handle all driving functions, reducing human monitoring responsibility. Various sensors and cameras work together in automated vehicles to monitor surroundings and ensure safety.