Driverless Cars: Uber car involved in fatal crash had software flaws

However, US investigators still haven't determined the probable cause for the accident

Are driverless cars legal?

As no fully autonomous cars have yet made it to the mass-production phase, no legislation currently exists to govern their public use. However, transport authorities both in the UK and in the US are currently in the process of drawing up new laws or amending old ones to account for driverless vehicles.

In the UK, for example, companies need no permits or authorisation to test autonomous vehicles on public roads. "Real-world testing of automated technologies is possible in the UK today," the government's Pathway to Driverless Cars report reads, "providing a test driver is present and takes responsibility for the safe operation of the vehicle; and that the vehicle can be used compatibly with road traffic law."

The UK also plans to amend the Highway Code to allow vehicles with advanced driver assistance systems to change lanes on the motorway and be parked via remote control. Changes to car insurance would extend it to cover product liabilities for automated vehicles. Insurers would pay out to victims, then reclaim the money from the manufacturers.

The US has also granted testing permits for driverless cars in four states, as well as publishing a 15-point safety checklist for manufacturers of autonomous vehicles in order to better regulate the emerging industry.

Published by the National Highway Transportation Safety Agency, the Federal Automated Vehicles Policy also marks the agency's move to the SAE scale, which measures a vehicle's level of autonomy. The scale runs from zero, where the driver has total control of the vehicles, all the way to five - a totally autonomous car requiring no human input.

Vehicles that measure two or three on the SAE scale - such as the Tesla and other semi-autonomous vehicles - are already road-legal both here and in the US, as the human driver is considered to be in control for the majority of the time.

While many countries have committed to fostering a supportive environment for the development of autonomous cars, concrete legislation governing their use is still likely to be some years away, as the technology itself has not yet been fully finished.

Who manufactures self-driving cars?

The most well-known companies exploring self-driving cars are Google and Tesla, but there are very few companies connected to the automotive industry that aren't exploring the technology.

Ride-hailing company Uber, for example, is currently testing its own fleet of autonomous taxis in Pittsburgh. Apple has also long been rumoured to be exploring the self-driving car field in some form, and has been linked to multiple different auto manufacturers, including McLaren.

In addition to tech companies, however, regular car makers are also getting in on the act. Audi, Ford, BWM, Honda, Daimler, Volvo and more have all been dabbling in some form of autonomous driving project. Luxury passenger vehicles have also been experimenting with using the tech in industrial vehicles such as heavy goods lorries.

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