Autonomous Trucking: TIER IV Tests Self-Driving Semi with Yamato & Mitsubishi Fuso

TIER IV, Yamato Transport, and Mitsubishi Fuso collaborate to test a Level 2+ autonomous semi-trailer truck for long-haul logistics, marking a step towards self-driving freight.

TIER IV Tests Autonomous Semi-Truck for Long-Haul Logistics

TOKYO, March 8, 2026 – TIER IV, a company focused on autonomous driving technology, is working with Yamato Transport and Mitsubishi Fuso Truck and Bus Corporation to test a semi-trailer truck equipped with Level 2+ autonomous driving capabilities. This collaboration aims to explore the potential of autonomous driving in long-haul logistics.

Collaboration for Autonomous Freight

The partnership between TIER IV, Yamato Transport, and Mitsubishi Fuso brings together expertise from different areas. TIER IV provides the autonomous driving software and technology. Yamato Transport, a major logistics company, offers its operational knowledge and understanding of the demands of freight transportation. Mitsubishi Fuso, a commercial vehicle manufacturer, provides the semi-trailer truck platform.

Level 2+ Automation Explained

The autonomous system being tested is classified as Level 2+ automation. This means the system can assist with steering and acceleration/deceleration under certain conditions, but a human driver is still required to monitor the driving environment and intervene when necessary. It is an advanced driver-assistance system (ADAS) that enhances safety and efficiency but doesn't completely replace the driver.

Level 2+ automation typically incorporates features such as:

Adaptive Cruise Control: Automatically adjusts speed to maintain a safe following distance.
Lane Keeping Assist: Helps keep the vehicle centered in its lane.
Automatic Emergency Braking: Can automatically apply the brakes to avoid or mitigate a collision.

Focus on Long-Haul Logistics

The tests are specifically focused on long-haul trucking. Long-haul routes often involve monotonous stretches of highway driving, which can lead to driver fatigue and decreased alertness. Autonomous driving technology has the potential to improve safety and reduce the burden on drivers in these scenarios.

Potential Impact on the Logistics Industry

The development and testing of autonomous trucks could have a significant impact on the logistics industry. Potential benefits include:

Increased Efficiency: Autonomous systems can potentially optimize routes and driving behavior to improve fuel efficiency and reduce delivery times.
Improved Safety: Automation can help reduce accidents caused by human error, such as driver fatigue or distraction.
Reduced Labor Costs: While drivers will still be needed initially, autonomous technology could eventually lead to reduced labor costs in the long run.
Addressing Driver Shortages: The trucking industry is facing a shortage of drivers. Autonomous trucks could help fill this gap and ensure the continued flow of goods.

The Future of Autonomous Trucking

While fully autonomous (Level 5) trucks are still some time away, these types of tests and collaborations are important steps towards realizing the potential of autonomous driving in freight transportation. Further development and testing are needed to refine the technology and ensure its safety and reliability in real-world conditions.

The collaboration between TIER IV, Yamato Transport, and Mitsubishi Fuso represents a significant effort to explore the future of autonomous trucking and its potential to transform the logistics industry.