Bus Industry News, International

Scotland autonomous bus service launches

Autonomous bus history is being made in Scotland as the groundbreaking CAVForth trial begins today, transporting passengers without a driver

In international news, groundbreaking progress has been made on autonomous buses, with the CAVForth autonomous bus trial launching in Scotland.

The project is led by Fusion Processing in cooperation with project partners Stagecoach, Transport Scotland, Alexander Dennis, Edinburgh Napier University and Bristol Robotics Laboratory. It is co-funded by the UK government’s Centre for Connected and Autonomous Vehicles.

From May 15, the project’s fleet of five Alexander Dennis Enviro200AV autonomous buses will operate a scheduled passenger service seven days a week on Stagecoach’s new AB1 route. Buses will depart Ferrytoll Park & Ride in Fife for Edinburgh Park interchange every 30 minutes.

The 14-mile route crosses the Forth Road Bridge and is made up of A-roads, motorways, bus lanes and private land. It includes a range of complex traffic manoeuvres such as roundabouts, traffic lights and ‘weaving’ motorway lane changes. The vehicles will travel in mixed traffic up to 50mph.

The new AB1 service provides the first direct public transport link between Fife and the business parks and retail outlets at Edinburgh Park. It has the capacity to carry up to 10,000 passengers per week.

The Alexander Dennis Enviro200AV is derived from the manufacturer’s standard Enviro200 single decker, more than 8,000 of which are in operation across the UK, providing a tried and tested platform to develop autonomous driving capabilities.

The buses use Fusion Processing’s autonomous drive system, CAVStar, which utilises data from a suite of state-of-the-art sensors including cameras, LiDAR and radar together with artificial intelligence processing to deliver optimum efficiency throughout the journey, in all traffic conditions.


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In addition, receiving information directly from traffic light systems enables the bus to plan its speed to run smoothly run from one green light to the next. This intelligent autonomous driving reduces unnecessary braking and accelerating, contributing to less wear on brakes and tyres, with corresponding reductions in particulate emissions.

CAVForth operates at the highest level of autonomous vehicle technology currently permissible on public roads, SAE Level 4, requiring the buses to retain a safety driver. Twenty autonomous bus professionals have been recruited from Stagecoach East Scotland’s existing driving team.

To support the project’s extensive research on passenger and public acceptance of autonomous vehicle technology, a second autonomous bus professional will act as bus captain, moving freely around the vehicle to engage with customers. This demonstrates what a future autonomous service could feel like when a single bus ‘captain’ can leave the cab while the computer does the driving.

“CAVForth is an exciting showcase of how our CAVstar® Automated Drive System can safely operate in a very complex driving environment. This pilot is globally significant and marks a step change in the operation of autonomous commercial vehicles on public roads,” Fusion Processing CEO Jim Hutchinson says.

Transport minister Kevin Stewart says: “It is really exciting to see the innovative and ambitious CAVForth project take to the roads in earnest after all the hard work of the partner organisations involved in bringing this world first to Scotland.”

“We want Scotland to continue to be at the forefront in the development of Connected and Autonomous Vehicles and the start of this live trial will really help the country establish its credentials on the world stage. I am excited to see how this technology can help to support our vision for a sustainable, inclusive, safe and accessible transport system.”

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