16-seater autonomous bus on road, autonomous bus trials concept

Autonomous bus trials halted: what LTA is testing instead

On 12 October 2026, the Land Transport Authority (LTA) confirmed that autonomous bus trials originally planned for public routes have been cancelled. According to The Straits Times, the authority is now exploring smaller-scale autonomous bus trials instead of deploying the six vehicles on public services.

Quick answer: LTA cancelled plans to run autonomous buses on SBS Transit routes 400 and 191 from mid-2026. The six 16-seater driverless buses are now being tested for narrower use cases, particularly employee shuttle services, before any wider rollout on public bus routes. All six buses have been delivered to Singapore.

The original plan represented a significant step for Singapore’s transport network. Six autonomous buses were meant to operate on two shorter, simpler SBS Transit routes in Marina Bay, Shenton Way and one-north in Buona Vista for an initial three-year trial period.

Why autonomous bus trials were postponed

This shift reflects a more cautious, phased approach to autonomous vehicle deployment on public transport. LTA stated it is exploring narrower use cases for autonomous buses before considering wider deployment on public bus services, which is more complex than operating on fixed, predictable routes.

Operating driverless buses on busy public routes involves navigating unpredictable traffic, pedestrians, and varied road conditions. Employee shuttle services, by contrast, typically follow set schedules and serve dedicated workforces from known pickup points, making them far simpler to manage and monitor.

safety operator monitoring vehicle dashboard, autonomous bus trials safety
(Photo by Fernando Narvaez on Pexels)

The first of the six autonomous buses arrived in March and passed LTA’s closed-circuit test, which assessed basic manoeuvres and the vehicle’s ability to allow passengers to board and alight safely at all designated stops. The remaining five buses are undergoing preparation for closed-circuit testing.

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What are autonomous bus trials testing now?

LTA is now evaluating how driverless buses can serve targeted groups of commuters through employee shuttle services instead of public routes. This narrower focus allows the authority to gather real-world data on autonomous vehicle performance in a controlled operational environment.

The six 16-seater buses would have operated with bus captains on board as safety operators. Real-time monitoring by LTA would have assessed self-driving performance and compliance with regulations. That same safety framework will apply to the new trial approach, but on smaller, more manageable routes.

💡 Pro tip: If you work for a large employer with a shuttle service, watch for announcements about employee autonomous shuttle trials. These will likely begin before any autonomous buses appear on public services like MRT lines.
SBS Transit public bus on Singapore road, bus service operations
(Photo by Satumbo 9 on Pexels)

Which routes were affected by the cancellation?

The two SBS Transit routes originally chosen for the autonomous bus trial were service 400 and service 191. These routes were selected because they are shorter and simpler compared with other public bus services, reducing the complexity of introducing autonomous vehicles to the network.

Route Original Plan Status Future Trials
Service 400 Public driverless trial from mid-2026 Cancelled To be confirmed
Service 191 Public driverless trial from mid-2026 Cancelled To be confirmed
Employee Shuttles Not originally planned New focus area Testing now underway

Riders currently using services 400 and 191 will see no changes to their journeys. Both routes will continue to operate with conventional buses and drivers as normal. The cancellation affects only the experimental deployment component, not the everyday services themselves.

shuttle bus for commuters, employee transportation service vehicle
(Photo by Tima Miroshnichenko on Pexels)

What does this mean for public transport automation?

Singapore remains committed to autonomous buses, but the timeline has become more measured. The city has already deployed driverless train technology across multiple lines. The North East Line, Circle Line and Downtown Line all operate driverless trains.

Buses present greater challenges. Trains run on fixed tracks with controlled entry points. Buses share roads with cars, motorcycles, cyclists and pedestrians, requiring more sophisticated sensors and decision-making systems. Testing on employee shuttles first allows LTA to refine the technology and build confidence among operators and the public before introducing autonomous buses to general commuters.

💡 Pro tip: When autonomous buses do eventually launch on public routes, early trials will likely appear in controlled environments like business parks or new developments rather than central areas. Monitor LTA announcements at lta.gov.sg for updates on when and where trials will resume.

How do autonomous buses fit into Singapore’s wider transport strategy?

Autonomous buses are seen as one tool for managing future demand as Singapore’s population grows and commuter expectations evolve. They could improve service reliability, reduce operating costs, and free up drivers for other roles within transport operators.

However, public acceptance matters. Testing on employee shuttles allows LTA and operators like SBS Transit to gather feedback from commuters familiar with the concept and willing to participate in trials. This feedback loop is crucial before launching on high-volume public routes where passenger expectations are different.

testing track for autonomous vehicles, transport authority testing centre
(Photo by Glen Zi 加侖子 on Pexels)

The technology raises practical questions about passenger safety, emergency procedures, and how autonomous systems behave in edge cases such as equipment failure or severe weather. Each small-scale trial provides data that makes the larger-scale rollout safer and more reliable.

Frequently asked questions

Will services 400 and 191 eventually receive autonomous buses?
LTA has not ruled out returning to these routes eventually, but there is no timeline. The authority is prioritising employee shuttle trials first to gather safety and operational data before considering public route deployment.

When will autonomous buses appear on Singapore public bus routes?
No date has been announced. LTA is taking a phased approach and will likely announce specific timelines only once employee shuttle trials are complete and safety assessments are satisfied. This could take several years.

Are the six autonomous buses unused?
No. All six buses have been delivered and the first has completed closed-circuit testing. The remaining five are undergoing preparation for testing. They will be used for employee shuttle trials and further evaluation.

How do autonomous buses on shuttles differ from the driverless trains already running?
Trains operate on fixed, separated tracks with no other traffic. Buses share roads and must navigate around other vehicles and pedestrians, making the technology and testing far more complex. Shuttle routes offer a middle ground with predictable schedules and known passenger groups.

What should commuters expect next?

Everyday riders will see no immediate change to bus services. The cancellation of the public trial only affects experimental deployment, not regular operations. SBS Transit and other bus operators will continue using human drivers on all public routes.

If your workplace is large or technology-focused, you may eventually be invited to participate in an autonomous shuttle trial. LTA and bus operators will likely seek employee feedback to build public confidence before any wider rollout. Keep an eye on workplace announcements and LTA’s official channels for updates.

For now, the six autonomous buses represent a pause rather than an end. Singapore remains committed to exploring autonomous bus technology; the route has simply shifted from public roads to controlled environments where the technology can be tested more thoroughly. This caution protects both passengers and the long-term viability of autonomous buses as a transport solution.

FAQ

Why did LTA cancel the autonomous bus trial on routes 400 and 191?

LTA decided to take a more cautious, phased approach and explore narrower use cases such as employee shuttle services before deploying autonomous buses on busy public routes. Public bus operations are more complex due to unpredictable traffic, pedestrians and varied road conditions, so smaller trials on shuttles allow the technology to be tested and refined.

When will autonomous buses start running on Singapore public bus routes?

LTA has not announced a specific date. The authority is prioritising employee shuttle trials first to gather safety and operational data. Public route trials will resume only once testing and safety assessments are complete, which could take several years.

What happens to the six autonomous buses that were delivered to Singapore?

All six 16-seater autonomous buses remain in Singapore and are being prepared for testing. The first bus completed LTA's closed-circuit test in 2026, and the remaining five are undergoing preparation for similar testing before being used in employee shuttle trials.

Will my bus service be affected by the cancellation of autonomous bus trials?

No. Services 400 and 191 will continue to operate normally with conventional buses and drivers. The cancellation only affects the experimental autonomous deployment; regular public bus operations remain unchanged.

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Written by MRT Map of Singapore Editorial Team

The MRT Map of Singapore Editorial Team keeps the site's interactive MRT map, line guides and train times up to date using official LTA, SMRT and SBS Transit information. News posts are drafted with AI tools from published reports and official announcements. Spot a mistake? Tell us through our contact page and we will fix it.

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