CRANFIELD, England -- A Nissan Leaf has completed a 230-mile (370 km) journey autonomously in Britain, the longest and most complex such trip in the country as automakers race to develop driverless technologies which could revolutionize travel.
Britain has been wooing developers of autonomous vehicles, hoping to grab a slice of an industry it estimates could be worth around 900 billion pounds ($1.2 trillion) worldwide in 2035.
The Leaf undertook the journey from the automaker's European technical center in Cranfield, southern England, to its Sunderland factory in the northeast, alongside conventional road users.
It included roads with minimal markings, or none at all, together with junctions, roundabouts and motorways.
"The project allowed us to develop an autonomous vehicle that can tackle challenges encountered on UK roads that are unique to this part of the world, such as complex roundabouts and high-speed country lanes with no road markings, white lines or kerbs," said Nissan Technical Centre Project Manager Bob Bateman.
The car had two engineers on board and monitoring the vehicle's actions at all times. The journey was also conducted with the knowledge and support of all relevant highway authorities, Nissan said.
The project, known as HumanDrive and led by Nissan as part of a consortium, also received government funding.
Nissan has previously said Britain's flexible approach to testing autonomous vehicles helped it to pick London for its first European tests in 2017 when a driverless vehicle traveled up to 50 mph (80 kph).
But the advancement of self-driving cars around the world has been hampered by safety concerns and problems regarding insurance liability.
"Safely completing the longest autonomous drive in Britain is an incredible achievement for Nissan and the HumanDrive consortium, and a huge step towards the rollout of driverless cars on UK streets," said junior business minister Nadhim Zahawi.