Skip to main content

Self-driving shared vehicles ‘could take most cars off city streets’

Fleets of TaxiBots and AutoVots could deliver today’s mobility with significantly fewer cars, says a new study. Self-driving shared cars could make 90 per cent of conventional cars in mid-sized cities superfluous, according to the study published by the International Transport Forum at the OECD. Even during peak hours, only one third of the current number of cars would be needed to provide the same number of trips as today. ITF researchers used actual transport data from Lisbon, Portugal, to model the
May 1, 2015 Read time: 2 mins
Fleets of TaxiBots and AutoVots could deliver today’s mobility with significantly fewer cars, says a new study. Self-driving shared cars could make 90 per cent of conventional cars in mid-sized cities superfluous, according to the study published by the 998 International Transport Forum at the 7353 OECD.

Even during peak hours, only one third of the current number of cars would be needed to provide the same number of trips as today.

ITF researchers used actual transport data from Lisbon, Portugal, to model the impact of two concepts: TaxiBots, self-driving vehicles shared simultaneously by several passengers (ride sharing) and AutoVots, which pick up and drop off single passengers sequentially (car sharing).

The largest reduction is achieved where a fleet of TaxiBots is complemented by a subway or other high-capacity public transport. But even in the least effective scenario, 50 per cent of cars would no longer be needed (AutoVots without subway).

The need for on-street parking spots could be totally removed with a fleet of shared self-driving cars in all scenarios, allowing the reallocation of 1.5 million m², or 20 per cent of road space to other uses.

While the number of cars is drastically lower, total kilometres travelled increase. This is due to detours for pick-ups/drop-offs, repositioning and a shift from bus trips to shared cars. The additional travel could increase environmental impacts, if the fleets used conventional engines. If a fleet of electric vehicles were used instead, a TaxiBot fleet would need only two per cent more vehicles, however, to accommodate battery re-charging times and reduced travel range.

For more information on companies in this article

Related Content

  • Cost benefit: Wichita eases workzone congestion
    July 8, 2019
    Achieving higher diversion rates has helped one Kansas city to make traffic flow more efficient around workzones. David Crawford examines what’s behind a 10:1 benefit-to-cost ratio in Wichita Around 10% of highway congestion in the US results from delays in workzones, leading to an estimated annual loss of $700 million in fuel costs alone. The lack of accessible real-time traffic information to help motorists minimise their inconvenience – particularly at peak times - is a major contributor. One solut
  • Cubic’s holistic view of traffic management
    May 25, 2022
    How can cities and transit agencies ease congested roadways? Andy Taylor of Cubic Transportation Systems suggests it would help to take a more holistic view of the problem
  • The steep drop in fuel prices and its effect on transportation in India, US and UK
    February 17, 2016
    Industry insight from Steer Davies Gleave notes that increases in oil production and lower projected global demand growth for crude oil have contributed to declines in fuel prices, beginning in June 2014 and falling 70 per cent to the lowest point in January 2016. However, the impact of changing fuel prices is not uniform across transportation modes. For instance, in India, retail fuel prices have declined by only 20-25 per cent as a result of the central government increasing the excise duties to shore
  • Sustainable mobility: innovative solutions needed to reduce traffic emissions
    May 1, 2021
    Kapsch TrafficCom’s Mobility Report 2021 reveals how new ITS measures such as vehicle connectivity and AI-based data processing can help create joined-up traffic management