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What is Smart for the Future City? Mobilities and Automation
Article

Implementation of Connected and Autonomous Vehicles in Cities Could Have Neutral Effects on the Total Travel Time Costs: Modeling and Analysis for a Circular City

1
Department of Geographical Engineering, Universidad de Santiago de Chile, Santiago 9170022, Chile
2
Department of Civil and Environmental Engineering, Technical University of Catalonia, 08034 Barcelona, Spain
*
Authors to whom correspondence should be addressed.
Sustainability 2019, 11(2), 482; https://doi.org/10.3390/su11020482
Received: 12 December 2018 / Revised: 10 January 2019 / Accepted: 11 January 2019 / Published: 17 January 2019
(This article belongs to the Special Issue Smart Mobility for Future Cities)
Autonomous vehicles promise to revolutionize the automobile market, although their implementation could take several decades in which both types of cars will coexist on the streets. We formulate a model for a circular city based on continuous approximations, considering demand surfaces over the city. Numerical results from our model predict direct and indirect effects of connected and autonomous vehicles. Direct effects will be positive for our cities: (a) less street supply is needed to accommodate the traffic; (b) congestion levels decrease: travel costs may decrease by 30%. Some indirect effects will counterbalance these positive effects: (c) a decrease of 20% in the value of travel time can reduce the total cost by a third; (d) induced demand could be as high as 50%, bringing equivalent total costs in the future scenario; (e) the vehicle-kilometers traveled could also affect the future scenario; and (f) increases in city size and urban sprawl. As a conclusion, the implementation of autonomous vehicles could be neutral for the cities regarding travel time costs. City planning agencies still have to promote complementary modes such as active mobility (walking and bicycle), transit (public transportation), and shared mobility (shared autonomous vehicles and mobility as a service). View Full-Text
Keywords: urban road network; connected and autonomous car; continuous approximation urban road network; connected and autonomous car; continuous approximation
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MDPI and ACS Style

Medina-Tapia, M.; Robusté, F. Implementation of Connected and Autonomous Vehicles in Cities Could Have Neutral Effects on the Total Travel Time Costs: Modeling and Analysis for a Circular City. Sustainability 2019, 11, 482. https://doi.org/10.3390/su11020482

AMA Style

Medina-Tapia M, Robusté F. Implementation of Connected and Autonomous Vehicles in Cities Could Have Neutral Effects on the Total Travel Time Costs: Modeling and Analysis for a Circular City. Sustainability. 2019; 11(2):482. https://doi.org/10.3390/su11020482

Chicago/Turabian Style

Medina-Tapia, Marcos, and Francesc Robusté. 2019. "Implementation of Connected and Autonomous Vehicles in Cities Could Have Neutral Effects on the Total Travel Time Costs: Modeling and Analysis for a Circular City" Sustainability 11, no. 2: 482. https://doi.org/10.3390/su11020482

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