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

  • Virtual traffic management centres, a new direction in traffic monitoring
    January 30, 2012
    David Crawford picks up a new direction trend in traffic monitoring The surprise winner in the Traffic Management Centre (TMC) category of the recently-announced 2011 OSMOSE (Open Source for MObile and SustainablE city) Awards for European innovations in urban transport, is the Danish city of Aalborg - which doesn't have a TMC. Alternatively, one might consider its 'virtual' TMC as a signpost for the future in medium-sized cities.
  • C/AVs could mean cheaper roads
    October 28, 2019
    The safety benefits of C/AVs have long been promoted – but research suggests they should also contribute to cheaper roads. David Crawford investigates the potential benefits in infrastructure costs Building narrower freeway lanes to accommodate the enhanced route-tracking capabilities of connected and autonomous vehicles (C/AVs), running in platoon conditions, could result in cost savings of £0.5 million (€0.56 million or US$6.5 million) for every km of road length built. Such benefits could be secur
  • Ride sharing services increase traffic, says Schaller Consulting
    August 1, 2018
    Ride sharing services such as Uber and Lyft, also called transportation network companies (TNC), are increasing congestion in US cities, says Schaller Consulting. The transport consultancy’s latest report reveals TNCs add 2.6 new vehicle miles on the road for each mile of personal driving removed, increasing driving on city streets by 160%. Called The New Automobility: Lyft, Uber and the Future of American Cities, the document combines research and data from a national travel survey to create a detailed
  • Most EV charging ‘takes place at home’
    July 30, 2015
    New analysis by plug-in vehicle campaign Go Ultra Low suggests that British motorists could no longer have to rely on the conventional petrol station. More than 90 per cent of electric vehicle (EV) charging takes place at home while total charging volumes have almost tripled since 2014, according to new usage data from leading infrastructure provider Chargemaster. Coupled with bumper uptake of plug-in vehicles – more than 14,500 were registered in the first half of 2015 – the new findings point to the po