February 12, 2019
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Autonomous cars will drive aimlessly around a city until their owners finish shopping
Driverless cars will cruise around city centres while their owners shop instead of parking to avoid extortionate parking fees, according to new research.
The influx of the controversial vehicles meandering around the roads would likely increase congestion and cause huge traffic jams, scientists claim. During this time they will also save petrol by going slow to 'kill time' - amplifying the issue.
Adam Millard-Ball, an associate professor of environmental studies at the University of California, Santa Cruz, said: 'Parking prices are what get people out of their cars and on to public transit. But autonomous vehicles have no need to park at all. They can get around paying for parking by cruising. They will have every incentive to create havoc.'
Chancellor Philip Hammond expects 'fully driverless cars', with no safety attendant on board, to be in use in just two years - by 2021.
The study, published in the journal Transport Policy says the nightmare of 'robot-fuelled gridlock' is right around the corner. Professor Millard-Ball says self driving, or autonomous, vehicles are likely to become commonplace in the next five to 20 years. He carried out the first analysis of its kind into the combined impact of parking costs and the vehicles on city centres where the expense and availability of space restricts car travel. It found, under the 'best-case scenario,' the presence of just 2,000 self-driving cars in downtown San Francisco will slow traffic to less than two miles per hour.
Professor Millard-Ball used game theory and a traffic micro-simulation model to generate his predictions. He said: 'It just takes a minority to gum things up. Drivers would go as slowly as possibly so they wouldn't have to drive around again.'
Free smartphone parking areas, coupled with strict enforcement in loading areas, relieved the airport snarls. But cities will be hard-pressed to provide remote parking areas for driverless cars at rates lower than the cost of cruising. Professor Millard-Ball estimates this at just 50 cents an hour - about 30p in English money.
The solution, according to the researchers, lies in 'congestion pricing' to charge people for entering densely populated areas. In London's city centre, motorists pay a flat fee of £11.50 (about $15) to enter. Singapore and Stockholm employ similar models. More sophisticated systems could charge by miles driven, or assign different fees to particular streets.
Professor Millard-Ball said: 'Congestion pricing is difficult to implement. The public never wants to pay for something they have historically gotten for free. But no one owns an autonomous vehicle now, so there is no constituency organised to oppose charging for the use of public streets. This is the time to establish the principle and use it to avoid the nightmarish scenario of total gridlock.'
Extracted from: www.dailymail.co.uk
