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Why are driverless buses being tested and what routes are planned?

Driverless buses are being tested to see if automated shuttles can work as public transport, especially for short last-mile trips.

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Covers: This page explains the motivations behind testing autonomous buses, including safety, cost, labour shortages and accessibility goals, and surveys announced or active pilot routes worldwide. It does not cover self-driving cars or speculative future networks without official plans.

Also answers: Why are self-driving buses being tested? · What routes will driverless buses run on? · Where are autonomous buses being trialled? · Are driverless buses coming to public roads?

Autonomous vehicle driving on a city street
Photo: Victor Svistunov

The short answer

Interpretation AI-prepared starting map

Driverless buses are being tested mainly to see whether automated shuttles can work as public transport: whether riders accept them, whether they feel safe onboard, and whether they can serve short "last-mile" trips that connect people to existing networks. The best-documented public service is CAVForth in eastern Scotland, whose AB1 park-and-ride route ran between Edinburgh Park and Ferrytoll Park and Ride via the Forth Road Bridge at 20-minute frequency from 15 May 2023 until 14 February 2025, using five SAE Level 4 buses with a driver present who does not need to control the bus in regular service.12

What this rests on5 independent sources
  • Evidence 20
  • Interpretation 1

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In brief

  1. The documented public driverless bus service is CAVForth's AB1 park-and-ride route in eastern Scotland, running 15 May 2023 to 14 February 2025 with five SAE Level 4 buses and a safety driver present.1

    Evidence-backed
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  2. Pilot feedback in Helsinki, Tallinn, Kongsberg and Gdańsk was very positive on personal security and safety onboard, with significant differences between cities partly linked to route design.2

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  3. Perceived risks appear to shape attitudes and intention to use autonomous shuttles rather than judgements of usefulness, according to a South East Queensland study.3

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  4. A recurring stated goal is last-mile service that plugs into wider mobility-as-a-service offerings, with demand varying by country and local conditions.2

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  5. Roads are the hardest setting for autonomy because of unpredictable designs, traffic and local differences, which is why trials tend to run on fixed, defined routes.4

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At a glance

The picture in numbers

Live · updated just now

CAVForth route via the Forth Road Bridge

20 minutes

Minutes between AB1 park-and-ride departures1
Helsinki, Tallinn, Kongsberg and Gdańsk

4 cities

Pilot cities with positive onboard safety feedback1

The evidence behind it

5 sources
  • Trials1
  • Other studies and data2
  • Background2

When it was published

Newest from 2026

20212026
Sources on this page by kind and year
SourceKindYear
Social Perception of Autonomous Mobility: A Survey on Public Transport Pilots in Switzerland.Other studies and data2026
Understanding Autonomous Shuttle Adoption Intention: Predictive Power of Pre-Trial Perceptions and Attitudes.Trials2022
A cross-country comparison of user experience of public autonomous transport.Other studies and data2021
Vehicular automation (Wikipedia)BackgroundUnknown
CAVForth (Wikipedia)BackgroundUnknown

The community around it

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What it means for you

Which fits you?

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If you want to know what a driverless bus service actually looks like in operation

the CAVForth AB1 gives the clearest documented example: a 20-minute-frequency park-and-ride route between Edinburgh Park and Ferrytoll via the Forth Road Bridge, with a driver on board who does not control the bus in regular service.1

Evidence-backed

If you are weighing whether riders will accept an autonomous shuttle

the evidence points to perceived risk shaping attitudes and intention more than perceived usefulness, so addressing safety and risk concerns is likely to matter more than promoting convenience.3

Evidence-backed

If you are planning a pilot route and want positive rider experience

route design appears to matter: feedback differed significantly between Helsinki, Tallinn, Kongsberg and Gdańsk, and those differences were partly explained by how the routes were designed.2

Evidence-backed

If you are interested in how public opinion shifts around a trial

the Swiss dataset was built to compare perception before and after trials in Schaffhausen and Valais-Wallis, including regional differences in perceived accessibility and benefits.5

Evidence-backed

If you are assessing whether driverless buses could fill a last-mile gap

pilot feedback suggests demand for last-mile automated services that integrate with mobility-as-a-service, but that demand varies with socio-economic and location-based conditions across countries.2

Evidence-backed

The full story · 3 chapters

01

Why operators and authorities are testing driverless buses

AI summary:Operators test driverless buses mainly for last-mile service, to learn public reaction, and to understand what drives uptake.

Evidence-backed

Evidence-backed: The clearest stated purpose in the evidence is demand-responsive, last-mile service: feedback from pilots in Helsinki, Tallinn, Kongsberg and Gdańsk suggested "there is a demand for future last-mile automated services that could be integrated with the MaaS concept", with demand varying by socio-economic and location-based conditions across countries.2

Evidence-backed

Evidence-backed: A second motivation is learning how the public reacts. Surveys in two Swiss cantons were designed to capture public acceptance and concerns and to track how perception changes before and after trials, including regional differences in perceived accessibility and benefits.5

Evidence-backed

Evidence-backed: A third is understanding what drives uptake. In a South East Queensland case study, perceived risks were not linked to perceived usefulness but did negatively affect travellers' attitudes and their intention to use autonomous shuttle buses; perceived relative advantages and service quality worked indirectly through attitude rather than directly on intention.3

Evidence-backed

Evidence-backed: More broadly, roads are described as the most complex environment for autonomy because of unpredictable road designs, conditions, traffic, obstacles and geographical or cultural differences, and full autonomy means the vehicle handles all perception, monitoring and control. That complexity is the backdrop to why testing happens on contained, defined routes rather than everywhere at once.4

02

Routes and pilots that are documented

AI summary:CAVForth's AB1 park-and-ride route in Scotland ran from May 2023 to February 2025 with five Level 4 buses and a safety driver.

Evidence-backed

Evidence-backed: CAVForth, based in eastern Scotland, developed passenger-carrying autonomous bus services in the United Kingdom. Its first route, the AB1 park-and-ride service, was operated by Stagecoach South Scotland at 20-minute frequency between Edinburgh Park and the Ferrytoll Park and Ride site via the Forth Road Bridge. The UK government described it as the first full-size public autonomous bus service in the world. Public operations began on 15 May 2023 and ceased on 14 February 2025. The fleet was five Alexander Dennis Enviro200AV diesel single-deck buses built to SAE Level 4 requirements, meaning a driver is present at all times but does not need to control the bus in regular service.1

Evidence-backed

Evidence-backed: Other documented pilot locations are city-level rather than route-level: Helsinki (Finland), Tallinn (Estonia), Kongsberg (Norway) and Gdańsk (Poland) in the Baltic Sea Area, where route design differed between cities and partly explained differences in feedback.2

Evidence-backed

Evidence-backed: In Switzerland, pilot trials took place in the cantons of Schaffhausen and Valais-Wallis, with survey data collected in three municipalities per canton.5

03

What riders and surveyed residents report

AI summary:Riders in several European cities reported very positive feelings of security and safety onboard, with differences between cities.

Evidence-backed

Evidence-backed: Across Helsinki, Tallinn, Kongsberg and Gdańsk, passengers gave remarkably positive feedback on personal security and safety onboard, and overall feedback was very positive, though with statistically significant differences between the city groups. Across all cities and topics, males gave lower scores than females.2

Evidence-backed

Evidence-backed: The Swiss survey data was collected to measure public acceptance and concerns and to compare perception before and after trials, and is intended to support analysis of awareness and acceptance afterwards as well as regional differences in perceived accessibility and benefits.5

Evidence-backed

Evidence-backed: The Queensland study supports the basic technology acceptance relationships seen in earlier work, and its authors frame the findings as implications for policymakers, transport planners and engineers aiming at higher public acknowledgement and wider uptake of autonomous demand-responsive transport.3

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What to remember

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  1. The documented public driverless bus service is CAVForth's AB1 park-and-ride route in eastern Scotland, running May 2023 to 14 February 2025 with five SAE Level 4 buses and a safety driver present.

  2. Pilot feedback in Helsinki, Tallinn, Kongsberg and Gdańsk was very positive on personal security and safety onboard, with significant differences between cities partly linked to route design.

  3. Perceived risks appear to shape attitudes and intention to use autonomous shuttles rather than judgements of usefulness, according to a South East Queensland study.

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  1. 1
    CAVForth (Wikipedia)
    WikipediaPublished Sep 29, 2026Checked Oct 12, 2026
    “CAVForth (Connected Autonomous Vehicles) is a pilot scheme based in eastern Scotland to develop passenger-carrying autonomous bus services in the United Kingdom. The scheme's first bus route, the AB1 park and ride service, was operated by Stagecoach South Scotland at a 20-minute frequency between Edinburgh Park and the Ferrytoll Park and Ride site via the Forth Road Bridge. Described by the UK government as being the first full-size public autonomous bus service in the world, the service, which commenced public operations on 15 May 2023 (and has now ceased operations as of 14 February 2025) uses a fleet of five Alexander Dennis Enviro200AV diesel single-deck buses built to SAE Level 4 requirements, meaning a driver is present in the bus at all times but does not need to control the bus in regular service.”
  2. 2
    A cross-country comparison of user experience of public autonomous transport.
    European transport research review (Bellone et al.)Published Mar 8, 2021Checked Oct 12, 2026
    “To have sufficient diversity in the data, the pilot projects were implemented in several cities in the Baltic Sea Area. The data analysed in this paper specifically refer to the cities of Helsinki (Finland), Tallinn (Estonia), Kongsberg (Norway), and Gdańsk (Poland). Across all cities, passengers provided remarkably positive feedback regarding personal security and safety onboard. The overall feedback, which was very positive in general, showed statistically significant differences across the groups of cities (Kongsberg, Helsinki, Tallinn and Gdansk), partially explicable by the differences in the route design. In addition, across all cities and feedback topics, males gave a lower score compared to females. The overall rating suggests that there is a demand for future last-mile automated services that could be integrated with the MaaS concept, although demand changes according to socio-economic and location-based conditions across different countries.Supplementary informationThe online version contains supplementary material available at 10.1186/s12544-021-00477-3.”
  3. 3
    Understanding Autonomous Shuttle Adoption Intention: Predictive Power of Pre-Trial Perceptions and Attitudes.
    Sensors (Basel, Switzerland) (Golbabaei et al.)Published Nov 26, 2022Checked Oct 12, 2026
    “South East Queensland, Australia, was selected as the testbed. In this case study, relationships between perceptions, attitudes, and usage intention were examined by employing a partial least squares structural equation modeling method. The results support the basic technology acceptance model casual relationships that correspond with previous studies. Although the direct effects of perceived relative advantages and perceived service quality on usage intention are not significant, they could still affect usage intention indirectly through the attitude factor. Conversely, perceived risks are shown to have no association with perceived usefulness but can negatively impact travelers' attitudes and usage intention toward autonomous shuttle buses. The research findings provide implications to assist policymakers, transport planners, and engineers in their policy decisions and system plans as well as achieving higher public acknowledgment and wider uptake of autonomous demand-responsive transport technology solutions.”
  4. 4
    Vehicular automation (Wikipedia)
    WikipediaPublished Oct 11, 2026Checked Oct 12, 2026
    “Vehicular automation is using technology to assist or replace the operator of a vehicle such as a car, truck, aircraft, rocket, military vehicle, or boat. Assisted vehicles are semi-autonomous, whereas vehicles that can travel without a human operator are autonomous. The degree of autonomy may be subject to various constraints such as conditions. Autonomy is enabled by advanced driver-assistance systems (ADAS) of varying capacity. Related technology includes advanced software, maps, vehicle changes, and outside vehicle support. The benefits of viewing automated driving from a sociotechnical systems perspective has been discussed. Autonomy presents varying issues for road, air, and marine travel. Roads present the most significant complexity given the unpredictability of the driving environment, including diverse road designs, driving conditions, traffic, obstacles, and geographical/cultural differences. Autonomy implies that the vehicle is responsible for all perception, monitoring, and control functions.”
  5. 5
    Social Perception of Autonomous Mobility: A Survey on Public Transport Pilots in Switzerland.
    Scientific data (Wicki et al.)Published Jan 31, 2026Checked Oct 12, 2026
    “This data descriptor presents survey data on the social perception of autonomous vehicles (AVs) collected during pilot trials in two Swiss cantons, Schaffhausen and Valais-Wallis. The surveys aimed to capture public acceptance and concerns regarding AVs, focusing on changes in perception before and after the trials. Data was gathered from representative samples in three municipalities per canton, using longitudinal panel surveys in Schaffhausen and a cross-sectional survey in Valais. Possible uses include analyses of public awareness and acceptance of AVs post-trial and investigating regional differences in perceived accessibility and benefits. This dataset offers valuable insights for researchers interested in the integration of AVs into public transport systems. The data enables further analysis and comparison with other regions and contexts.”

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Published 1 time since Oct 12, 2026.

  1. Version 2Oct 12, 2026Live now

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  • Which specific routes are currently planned or active beyond CAVForth's AB1, and where are the Swiss, Baltic and Queensland pilots running today?

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  • Do any trials show measured effects on operating cost, staffing needs or labour shortages, rather than stated motivations?

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  • Why did the CAVForth AB1 service cease operations in February 2025, and what happened to the vehicles and the wider scheme?

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  • How do riders with mobility or accessibility needs experience driverless buses compared with conventional services?

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