Skip to main content

Ride-sharing could reduce congestion, says US study

A new Massachusetts Institute of Technology (MIT) study suggests that using carpooling options from companies like Uber and Lyft could reduce the number of vehicles on the road by a factor of three without significantly impacting travel time. Led by Professor Daniela Rus, director of MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL), researchers developed an algorithm that found 3,000 four-passenger cars could serve 98 per cent of taxi demand in New York City, with an average wait-tim
January 6, 2017 Read time: 2 mins
A new 2024 Massachusetts Institute of Technology (MIT) study suggests that using carpooling options from companies like Uber and Lyft could reduce the number of vehicles on the road by a factor of three without significantly impacting travel time.

Led by Professor Daniela Rus, director of MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL), researchers developed an algorithm that found 3,000 four-passenger cars could serve 98 per cent of taxi demand in New York City, with an average wait-time of only 2.7 minutes.

The team also found that 95 per cent of demand would be covered by just 2,000 10-person vehicles, compared to the nearly 14,000 taxis that currently operate in New York City.

Using data from 3 million taxi rides, the new algorithm works in real-time to reroute cars based on incoming requests, and can also proactively send idle cars to areas with high demand, a step that speeds up service 20 percent, according to Rus.

“Instead of transporting people one at a time, drivers could transport two to four people at once, resulting in fewer trips, in less time, to make the same amount of money,” says Rus. “A system like this could allow drivers to work shorter shifts, while also creating less traffic, cleaner air, and shorter, less stressful commutes.”

Related Content

  • May 9, 2019
    Switching Atlanta onto MaaS
    It’s easy to talk about MaaS in the abstract – but MaaS isn’t going to work if it’s just a theory. Colin Sowman speaks to one woman about the practical benefits - and difficulties - of getting out of her car and switching to public transit in Atlanta, Georgia One of the first goals of Mobility as a Service (MaaS) inventor Sampo Hietanen is that MaaS should persuade households they don’t need a second car. This is starting to happen - even in the car-dominated US. Last year, authorities in the state of Ge
  • November 26, 2013
    US favours express buses are for intercity travel
    David Crawford records an upsurge in ground travel. Express buses are powering ahead of air and rail as the US’ most-favoured form of intercity travel and major operators are investing in passenger-attracting and retaining technologies. At the same time ‘kayak’-style price comparison websites are emerging to widen rider choice. Modelled on airline industry search engines that find cheap flight deals by comparing carriers’ offers, these new websites aim to fill the same gap for a ground-travel equivalent
  • December 19, 2014
    Use of US public transport increases
    More than 2.7 billion trips were taken on US public transportation in the third quarter of 2014, according to a report released today by the American Public Transportation Association (APTA). This is a 1.8 per cent increase over the same quarter last year, representing an increase of more than 48 million trips and the highest third quarter ridership since 1974 (the oldest third quarter APTA has available for comparison). Some public transit systems that reported record third quarter ridership for their
  • January 26, 2012
    Vancouver's metro transport promotes alternatives to driving
    David Crawford looks at Vancouver and the legacy of a Olympic transport success