It is illegal to ride such machines on public roads without a licence and insurance.
Nevada has made Audi the first automaker allowed to operate self-driving vehicles on public roads.
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The technologies will now be tested on public roads in and around Frankfurt in real-world driving conditions.
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Earlier last week, the state of Nevada followed California's lead and granted automakers permission to operate self-driving cars on public roads.
Mr Sampson said his teams have been helping with some of the work clearing landslides which started on private land but ended up on public roads.
But truck platoons are not going to appear on public roads any time soon, reckons Karl Hedrick, an engineer at the University of California at Berkeley.
Some 1, 700 of these are on public roads and 462 have automatic half barriers, like those used at Ufton Nervet in Berkshire, scene of Saturday's tragedy.
The Google car has logged 100s of thousands of miles on public roads with no computer-caused accident (they did have a human rear end them once).
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Google's driverless cars have clocked up more than 250, 000 miles in America, and Nevada has become the first state to regulate such trials on public roads.
Kevin Clinton, head of road safety at the Royal Society for the Prevention of Accidents (Rospa), supports the call to make it compulsory for riders to wear a helmet on public roads.
The WVTA certification reflects a determination the scooter design is safe to use on public roads without having to be inspected and tested individually, paving the way for commercial production and sale in Europe.
The federal government says authorities can use electronic surveillance to track vehicles on public roads without a warrant, citing a 1983 Supreme Court ruling that declared there is no reasonable expectation of privacy there.
If one can believe that we will have fully autonomous, driverless cars in the future, which many people do, then there is absolutely no reason why one should doubt the possibility of a car driven by the blind safely on public roads.
After the test on the public roads in Spain, the project is now entering a new phase with the focus on analysis of fuel consumption.
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The state last week released draft rules to govern self-driving cars, which it has approved for testing on its public roads.
Think of the congestion on many public roads, the rationing of broadband spectrum or the exorbitant prices of government issued taxi medallions (and therefore cab fares) in New York City.
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But to reassure those who doubt the safety of the system, I say that the vehicle won't be on the public roads until proven as safe as, or safer than, today's vehicles for the sighted.
Gritting crews in Sheffield were concentrating on main roads and public transport routes after having worked throughout the night, Sheffield Council said.
As Chicago prepares to replace its aging sewer and water systems, and routine construction continues on roads and public spaces, the city now wants to grant low or no cost access for private companies to expand networks right along side that construction.
The aim of the new Trunk Roads Patrol Group is to improve public safety and increase police presence on the roads.
The plans illustrate the choices Chicago and its suburbs face on issues ranging from roads and public transport to open-space planning.
Emergency crews were having trouble reaching drivers who were caught on the roads, Texas Department of Public Safety Trooper Gabriel Medrano said.
At the mundane end of the spectrum, they record cars speeding on roads near schools or snap photos of derelict public parks, then upload them to their community website.
The council has limited powers, focusing mainly on civic planning, monitoring some public services and restaurants and also roads and civil construction.
Many infrastructure projects, from roads to power plants, are stalled or reliant on public-sector customers which are bust in all but name and which enjoy uncertain backing from the state.
On Wednesday, shops and businesses remained closed and public transport stayed off the roads in the valley.
Instead, with roads closed and some public transport suspended, most shops shut on Saturday and the city remained empty apart from police and protesters.
It had decided on the Sheffield Road site because of its links to public transport, network of major roads and access from the city centre.
If you could break that up, and with it the corrupt system of allocating public money for building bridges and roads, you could really set Japan on a better course.
The most recent proposal, which has the approval of the central bank, suggests the bailout will be financed by the public sale of those bonds based on the future earnings of the group's toll roads.
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