Self-driving Robocabs are the latest tech that could save money and the environment

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Self-driving “robocab” taxis are the future if we want transport that will benefit the environment AND our purses.

The autonomous cars could deliver huge environmental and economic benefits by running more efficiently than privately operated vehicles, a study has shown.

Environmental benefits:

Scientists found that an electric self-driving taxi in 2030 would generate greenhouse gas emissions 90% per mile (1.6 km) lower than a privately operated petrol-powered car.

Its contribution to greenhouse gases would also be up to 82% lower than that of a hybrid vehicle.

Almost half of the savings were due to “right sizing” – ensuring that the taxi varies in size according to how many passengers it is carrying.

Economic benefits:

Driverless payment

By 2030, autonomous taxis could be far cheaper to operate than traditional taxis, said the researchers, whose findings appear in the journal Nature Climate Change.

If driven only 12,000 miles (19,300 km) per year, electric vehicles were expected to be more expensive than owning and operating petrol-driven cars.

But if a vehicle was driven 40,000 to 70,000 miles (64,300 to 112,600 km) a year – not unusual for a taxi – power delivered by a hydrogen fuel cell or electric battery is the most cost-effective option.

Taking into account the cost of autonomous technology, currently estimated to add as much as 150,000 dollars (£96,200) to the cost of a vehicle, the dramatic savings were a result of greater energy efficiency and doing away with the human operator.

What the scientists say:

Lead scientist Dr Jeff Greenblatt, from the Lawrence Berkeley National Laboratory in California, US, said: “When we first started looking at autonomous vehicles, we found that, of all the variables we could consider, the use of autonomous vehicles as part of a shared transit system seemed to be the biggest lever that pointed to lower energy use per mile.”

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