Autoflow Road Trial Tests Multi-Vehicle Autonomous Logistics

Japan Selects Autoflow Road Demonstration for FY2026

TIER IV, Taisei Corporation, and Taisei Rotec Corporation announced on October 14 that Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) had selected them for an FY2026 demonstration project focused on accelerating deployment of the Autoflow Road. The initiative will examine how multiple autonomous vehicles can operate within purpose-built logistics lanes and how onboard sensing equipment and roadside infrastructure can be simplified for these dedicated routes. The demonstration builds on the companies' participation in an earlier MLIT Autoflow Road project during FY2025. The latest selection advances testing of the operational requirements and supporting technologies needed to evaluate this dedicated autonomous logistics concept.

Eight-Day Autonomous Vehicle Demonstration Scheduled for 2026

The eight-day demonstration is scheduled to take place from late October to early November 2026 at a full-scale tunnel test facility and test track operated by MLIT's National Institute for Land and Infrastructure Management. Three passenger-car-based autonomous vehicles will be used to evaluate operational scenarios across straight and curved sections. The tests will examine following, stopping, passing oncoming vehicles, parallel driving, passing stopped equipment, merging and diverging, and avoiding and overtaking obstacles that simulate fallen objects. These activities are intended to assess how autonomous vehicles handle different movements and potential obstructions within the proposed dedicated logistics-lane environment.

Testing Driving Space and Dedicated Lane Requirements

The demonstration will also assess the driving space required for the Autoflow Road, including standard, intermediate, and minimum lane widths. Establishing these dimensions is an important part of evaluating how autonomous vehicles can operate within purpose-built logistics corridors while accommodating different driving maneuvers. The trials will examine vehicle interactions and obstacle avoidance across both straight and curved sections, providing a basis for assessing the spatial requirements of the planned operating environment. The passenger-car-based vehicles are being used to test autonomous driving systems and multi-vehicle control functions; they are not the dedicated transport hardware intended for future Autoflow Road deployment. This distinction separates technology validation from the hardware planned for the eventual transport system.

Pilot.Auto and Autoware Support Autonomous Driving Tests

The test vehicles will use Pilot.Auto, an autonomous driving system developed by TIER IV for logistics applications and based on Autoware, open-source software for autonomous driving. The demonstration will evaluate Pilot.Auto's adaptability to the operational requirements of the Autoflow Road, including multi-vehicle movements within dedicated lanes. Testing will cover scenarios such as following, parallel driving, merging, diverging, and responding to obstacles, allowing the participating companies to examine the system across a range of driving situations. The announcement does not specify quantitative performance targets or report completed test results. Instead, the scheduled demonstration is intended to evaluate system adaptability under the planned conditions.

Taisei's T-Localizer and Simplified Infrastructure Evaluation

Alongside the autonomous driving system tests, the demonstration will validate the effectiveness of Taisei Corporation's T-Localizer self-localization support technology. Self-localization supports an autonomous vehicle's ability to determine its position, making it relevant to evaluating vehicle movement within dedicated logistics lanes. The project will also investigate ways to simplify the autonomous driving equipment required for those lanes, including onboard sensors and roadside infrastructure. These evaluations address two connected requirements: reliable autonomous operation and the practical complexity of the supporting equipment. The announcement does not quantify potential reductions in infrastructure or sensor requirements, so the extent of any simplification will depend on the demonstration's findings.

FY2025 Participation Provides Project Continuity

TIER IV, Taisei Corporation, and Taisei Rotec Corporation also participated in an MLIT demonstration project for the Autoflow Road during FY2025. Their selection for the FY2026 project therefore continues their involvement in efforts to evaluate the dedicated autonomous logistics concept. The new demonstration focuses on multi-vehicle operations, driving-space requirements, autonomous driving system adaptability, self-localization support, and opportunities to simplify lane equipment. Together, these areas address both vehicle-level behavior and the supporting infrastructure needed for dedicated autonomous transport corridors. The source announcement confirms the earlier participation and the new selection but does not provide comparative results from the FY2025 project or establish a deployment date for the Autoflow Road.

Industry Impact & Outlook

The FY2026 demonstration could help clarify the operational and infrastructure requirements for dedicated autonomous logistics lanes in Japan. By testing several vehicles, multiple driving maneuvers, different lane widths, and obstacle scenarios, the project will examine practical challenges that must be understood before the Autoflow Road concept can advance toward deployment. Evaluating Pilot.Auto and T-Localizer alongside opportunities to simplify sensors and roadside equipment may also help the participating companies assess how autonomous control and supporting infrastructure work together. However, the announcement provides no completed results, cost estimates, or confirmed rollout schedule. The demonstration's significance will therefore depend on its findings and whether those findings support the intended operating concept.

Frequently Asked Questions

What is the Autoflow Road demonstration project?
The Autoflow Road demonstration project is an MLIT-selected initiative in Japan intended to accelerate deployment of dedicated logistics lanes for autonomous transport. For FY2026, TIER IV, Taisei Corporation, and Taisei Rotec Corporation will evaluate multi-vehicle operations, driving-space requirements, and ways to simplify onboard sensors and roadside infrastructure. The eight-day demonstration is scheduled for late October to early November 2026. It will use three passenger-car-based autonomous vehicles to test different driving maneuvers and obstacle scenarios rather than the dedicated transport hardware planned for future deployment.

Which companies were selected for the FY2026 Autoflow Road project?
TIER IV, Taisei Corporation, and Taisei Rotec Corporation were selected by Japan's Ministry of Land, Infrastructure, Transport and Tourism for the FY2026 Autoflow Road demonstration project. The companies announced their selection on October 14. Their work will focus on testing autonomous multi-vehicle operations and evaluating the systems and infrastructure needed for dedicated logistics lanes. The demonstration will also assess Pilot.Auto adaptability and the effectiveness of Taisei's T-Localizer technology. The announcement does not assign separate responsibilities to each company beyond identifying the technologies and evaluation areas involved.

When and where will the Autoflow Road demonstration take place?
The eight-day Autoflow Road demonstration is scheduled for late October to early November 2026 at an MLIT-operated full-scale tunnel test facility and test track. The facility is operated by the National Institute for Land and Infrastructure Management in Japan. Three passenger-car-based autonomous vehicles will conduct tests across straight and curved sections. The planned activities include vehicle following, stopping, parallel driving, merging, diverging, and obstacle avoidance. The announcement identifies the general testing period and facility operator but does not provide exact daily dates or a more specific location.

What driving scenarios will the autonomous vehicles test?
The three autonomous vehicles will evaluate multiple driving scenarios across straight and curved sections of the test facility. Planned maneuvers include following, stopping, passing oncoming vehicles, parallel driving, passing stopped equipment, merging and diverging, and avoiding and overtaking obstacles simulating fallen objects. The demonstration will also assess the driving space needed for the Autoflow Road at standard, intermediate, and minimum widths. These tests are designed to evaluate autonomous driving systems and control functions for multi-vehicle operations. The announcement does not report completed results or provide quantitative performance targets.

What are Pilot.Auto and Autoware in the demonstration?
Pilot.Auto is an autonomous driving system developed by TIER IV for logistics applications and based on Autoware, open-source software for autonomous driving. The FY2026 demonstration will use Pilot.Auto-equipped vehicles to evaluate system adaptability within the proposed Autoflow Road operating environment. Testing will include multi-vehicle movements and driving scenarios involving following, merging, diverging, and obstacles. These activities will help evaluate the system under the conditions specified for the project. The announcement does not disclose detailed technical results, performance measurements, or a confirmed timetable for subsequent deployment.

What is Taisei's T-Localizer technology being evaluated for?
T-Localizer is Taisei Corporation's self-localization support technology, and its effectiveness will be validated during the FY2026 Autoflow Road demonstration. Self-localization helps an autonomous vehicle determine its position, a capability relevant to navigating dedicated logistics lanes. The project will assess T-Localizer alongside Pilot.Auto adaptability and efforts to simplify autonomous driving equipment. The announcement does not provide technical specifications for T-Localizer or quantify its expected performance. Its effectiveness will be evaluated as part of the broader demonstration rather than presented as an already confirmed result.

Are the test vehicles the same hardware planned for the future Autoflow Road?
No, the three passenger-car-based autonomous vehicles are being used to test autonomous driving systems and control functions for multi-vehicle operations. They are not the dedicated transport hardware planned for future Autoflow Road deployment. This distinction means the demonstration is focused on evaluating vehicle behavior, system adaptability, lane-space requirements, and supporting equipment rather than validating the final transport hardware itself. The announcement does not identify the final hardware configuration or establish a deployment schedule. Any decisions about future implementation will depend on subsequent project developments and the findings of the planned evaluation.