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

  • September 19, 2014
    Public transport key to climate change, says report
    A new report, released in advance of United Nations Secretary-General’s Climate Summit on 23 September, claims that more than US$100 trillion in cumulative public and private spending could be saved and 1,700 megatons of annual carbon dioxide (CO2) - a 40 percent reduction of urban passenger transport emissions - could be eliminated by 2050 if the world expands public transportation, walking and cycling in cities. The report, A Global High Shift Scenario, from the Institute for Transportation Development
  • May 22, 2020
    Traffic Group: ‘Daily commute may never be the same’
    The pandemic has taught us that our ideas about travel might need a rethink - Wes Guckert suggests a few ways in which change is coming
  • June 2, 2017
    Transition to Shared Mobility: How cities can deliver inclusive transport services
    A new study released by the International Transport Forum (ITF) examines how cities can manage the challenges of geographical scale and transition to shared mobility services.
  • May 15, 2017
    University research shows a few self-driving cars can improve traffic flow
    The presence of just a few autonomous vehicles can eliminate the stop-and-go driving of the human drivers in traffic, along with the accident risk and fuel inefficiency it causes, according to new research by the University of Illinois at Urbana-Champaign. Funded by the National Science Foundation’s Cyber-Physical Systems program, the research was led by a multi-disciplinary team of researchers with expertise in traffic flow theory, control theory, robotics, cyber-physical systems, and transportation engine