What does Level 4 autonomous driving mean?
3 Answers
L4 autonomous driving refers to high-level autonomous driving, which can achieve the entire driving process without any driver operation, but there are also certain restrictions, such as limiting the vehicle speed to not exceed a certain value and having a relatively fixed driving area. It generally relies on real-time updated road information data support to achieve real-world scenarios such as automatic vehicle pickup and return, automatic convoy cruising, and automatic obstacle avoidance. The following is an introduction to autonomous driving levels: 1. Level 1 driving automation: The driving automation system continuously performs lateral or longitudinal motion control of the vehicle within its designed operating conditions and has the ability to detect and respond to some targets and events corresponding to the performed lateral or longitudinal motion control. 2. Level 2 driving automation: The driving automation system continuously performs both lateral and longitudinal motion control of the vehicle within its designed operating conditions and has the ability to detect and respond to some targets and events corresponding to the performed lateral and longitudinal motion control. 3. Level 3 driving automation: The driving automation system continuously performs all dynamic driving tasks within its designed operating conditions. 4. Level 4 driving automation: The driving automation system continuously performs all dynamic driving tasks and takes over dynamic driving tasks within its designed operating conditions. 5. Level 5 driving automation: The driving automation system continuously performs all dynamic driving tasks and takes over dynamic driving tasks under any drivable conditions.
To be honest, I've figured out the autonomous driving levels through daily driving and learning about new technologies. L4 is highly automated, meaning it can fully take over driving tasks in specific environments like designated areas or highway systems without any human intervention. You can completely relax, rest, or do other things while the vehicle handles steering, acceleration, and even lane changes on its own. However, it only operates under predefined conditions, such as within geofenced areas or fixed routes, and may not activate on rural roads or in severe weather. Technologically, it relies on sensors and algorithms to handle all situations, being more reliable than L3 because it doesn't suddenly ask for your help, thus avoiding distraction-related accidents. Currently, examples like Waymo's Robotaxi offer fully autonomous services in certain cities, but widespread adoption still awaits regulatory support. In the long run, it promises to make travel more convenient and effortless, especially reducing fatigue during long-distance drives, though it's not expected to work in all scenarios.
As a frequent driver, I think L4 autonomous driving sounds pretty cool—it means the car can drive itself entirely in certain areas like highways or commercial districts without you needing to do anything. You can set a destination and then play with your phone or even take a nap, but only within predefined environments; outside those areas, it deactivates. The benefit is a significant reduction in driving stress and unnecessary fatigue, almost like hiring a free driver. However, real-world applications are still limited, currently only piloted in specific cities, with technology and safety testing still underway. Overall, it represents the convenience of future mobility, and I look forward to seeing it available in more places—but it’s important to choose the right time and place to use it.
