In recent years, the use of Advanced Driver Assistance Systems (ADAS) in vehicles has become increasingly common in Taiwan. The Freeway Bureau stated recently that some drivers mistakenly regard “driver assistance” as “autonomous driving,” letting go of the steering wheel or becoming distracted while driving, thereby increasing the risk of accidents. Drivers are reminded to keep both hands on the steering wheel throughout the entire journey.

The Freeway Bureau under the Ministry of Transportation and Communications noted in a press release that the installation rate of ADAS, including Adaptive Cruise Control (ACC) and Lane Keeping Assist, has risen rapidly in recent years. However, ADAS may fail to correctly recognize road conditions in various situations.

Using Adaptive Cruise Control (ACC) as an example, the bureau explained that while it can reduce driver workload, it is still limited by “system braking constraints” and “physical limits of the vehicle.” When the vehicle ahead suddenly slows down or swerves, the system must complete judgment and braking within an extremely short distance and time, and may not be able to provide sufficient braking force.

When encountering stationary objects or extremely low-speed vehicles, such as crash attenuator trucks, the bureau pointed out that even if ACC or Automatic Emergency Braking (AEB) intervenes promptly, mechanical and physical limitations may prevent the vehicle from coming to a complete stop. For example, crash attenuator trucks under construction at National Freeway No. 1 northbound 254 km on April 16, National Freeway No. 3 northbound 94 km on July 1, and National Freeway No. 1 southbound 128.5 km on September 10 this year were all struck by passenger cars with ADAS activated.

The Freeway Bureau emphasized that driver assistance systems are not foolproof and that driving safety should not rely entirely on technology. While technology can reduce fatigue, it cannot replace a driver’s real-time judgment. Drivers are urged to thoroughly read the owner’s manual and understand the functions and limitations of their driver assistance systems.

The bureau further reminded drivers that especially at high speeds, they must remain focused, pay close attention to road conditions ahead, and keep both hands on the steering wheel at all times so they can actively intervene immediately in emergencies and ensure driving safety.

This article is published with authorization from CNA.