Skip to content
    • CED
      • About CED
        • Vision
        • People
        • Meet CED Alums
        • Community
        • Our Spaces
        • Work at CED
        • Giving
        • Visit Us
        • Contact Us
      • Academics
        • Degrees + Certificates
        • Summer Programs
        • Study Abroad
        • Courses
      • Admissions
        • Undergraduate Admissions
        • Graduate Admissions
        • Fees & Financial Aid
      • Advising
        • Undergraduate Advising
        • Graduate Advising
      • News + Events
        • News
        • Events
      • Research + Design
        • Centers & Institutes
        • Climate Solutions
        • Equity + Social Justice
        • Technology + Material Innovations
        • Publications
        • Research Collaborations
        • Student Work
      • Resources
        • Awards, Scholarships and Fellowships
        • Student Support
        • Environmental Design Library
        • Environmental Design Archives
        • Fabrication + Materials
        • IT + Computing
        • Careers & Work Opportunities
        • Student Fees and Waivers
        • Student Organizations
        • Facility Services
        • Building Safety
    • ARCH
      • About Architecture
        • Diversity
        • Leadership
        • Accreditation and Licensure
      • Degrees + Admissions
        • Admissions
        • Bachelor of Arts
        • Minor in Architecture
        • Minor in Environmental Design and Urbanism in Developing Countries
        • Minor in the History of the Built Environment
        • Minor in Social and Cultural Factors in Environmental Design
        • Minor in Sustainable Design
        • Master of Architecture (M.Arch)
        • Master of Advanced Architectural Design (MAAD)
        • Master of Science
        • Ph.D.
        • Concurrent Programs
      • Courses
        • 2023 Fall Courses
        • 2023 Summer Courses
        • 2023 Spring Courses
      • People
        • Faculty
        • Emeriti
        • Students
        • Staff
      • Gallery
      • Advising
    • LAND
      • About LAEP
      • Degrees + Admissions
        • Admissions
        • Bachelor of Arts
        • Minor in Landscape Architecture
        • Master of Landscape Architecture
        • Ph.D.
        • Concurrent Degrees
      • Courses
      • People
        • Faculty
        • Emeriti
        • Students
        • Staff
      • Gallery
      • Advising
    • CITY
      • About DCRP
      • Degrees + Admissions
        • Admissions
        • Ph.D.
        • Master of City Planning
        • Bachelor of Arts
      • Courses
      • People
        • Faculty
        • Lecturers
        • Emeriti
        • Students
        • Staff
      • Gallery
        • Student Work
        • Faculty Work
        • Studio Work
      • Advising
    • IURD
      • About IURD
      • Real Estate Development + Design
        • About MRED+D
        • Admissions
        • Courses
        • People
      • Urban Design
        • About MUD
        • Admissions
        • Courses
        • People
      • Sustainable Environmental Design
        • About SED
        • Courses
        • People
      • People
      • Gallery
      • Advising
  • CED
    • About CED
      • Vision
      • People
      • Meet CED Alums
      • Community
      • Our Spaces
      • Work at CED
      • Giving
      • Visit Us
      • Contact Us
    • Academics
      • Degrees + Certificates
      • Summer Programs
      • Study Abroad
      • Courses
    • Admissions
      • Undergraduate Admissions
      • Graduate Admissions
      • Fees & Financial Aid
    • Advising
      • Undergraduate Advising
      • Graduate Advising
    • News + Events
      • News
      • Events
    • Research + Design
      • Centers & Institutes
      • Climate Solutions
      • Equity + Social Justice
      • Technology + Material Innovations
      • Publications
      • Research Collaborations
      • Student Work
    • Resources
      • Awards, Scholarships and Fellowships
      • Student Support
      • Environmental Design Library
      • Environmental Design Archives
      • Fabrication + Materials
      • IT + Computing
      • Careers & Work Opportunities
      • Student Fees and Waivers
      • Student Organizations
      • Facility Services
      • Building Safety
  • ARCH
    • About Architecture
      • Diversity
      • Leadership
      • Accreditation and Licensure
    • Degrees + Admissions
      • Admissions
      • Bachelor of Arts
      • Minor in Architecture
      • Minor in Environmental Design and Urbanism in Developing Countries
      • Minor in the History of the Built Environment
      • Minor in Social and Cultural Factors in Environmental Design
      • Minor in Sustainable Design
      • Master of Architecture (M.Arch)
      • Master of Advanced Architectural Design (MAAD)
      • Master of Science
      • Ph.D.
      • Concurrent Programs
    • Courses
      • 2023 Fall Courses
      • 2023 Summer Courses
      • 2023 Spring Courses
    • People
      • Faculty
      • Emeriti
      • Students
      • Staff
    • Gallery
    • Advising
  • LAND
    • About LAEP
    • Degrees + Admissions
      • Admissions
      • Bachelor of Arts
      • Minor in Landscape Architecture
      • Master of Landscape Architecture
      • Ph.D.
      • Concurrent Degrees
    • Courses
    • People
      • Faculty
      • Emeriti
      • Students
      • Staff
    • Gallery
    • Advising
  • CITY
    • About DCRP
    • Degrees + Admissions
      • Admissions
      • Ph.D.
      • Master of City Planning
      • Bachelor of Arts
    • Courses
    • People
      • Faculty
      • Lecturers
      • Emeriti
      • Students
      • Staff
    • Gallery
      • Student Work
      • Faculty Work
      • Studio Work
    • Advising
  • IURD
    • About IURD
    • Real Estate Development + Design
      • About MRED+D
      • Admissions
      • Courses
      • People
    • Urban Design
      • About MUD
      • Admissions
      • Courses
      • People
    • Sustainable Environmental Design
      • About SED
      • Courses
      • People
    • People
    • Gallery
    • Advising
  • Resources
  • Apply
  • Give
  • Resources
  • Apply
  • Give
BACK
BACK
Faculty Work

DeepAir

DeepAir (Deep Learning and Satellite Imaginary to Estimate Air Quality Impact at Scale) utilizes deep learning algorithms to improve traffic congestion

Led by Marta Gonzalez

Abstract

Stories of mega-jams that last tens of hours or even days appear not only in fiction but also in reality. In this context, it is important to characterize the collapse of the network, defined as the transition from a characteristic travel time to orders of magnitude longer for the same distance traveled. In this multicity study, we unravel this complex phenomenon under various conditions of demand and translate it to the travel time of the individual drivers. First, we start with the current conditions, showing that there is a characteristic time τ that takes a representative group of commuters to arrive at their destinations once their maximum density has been reached. While this time differs from city to city, it can be explained by Γ, defined as the ratio of the vehicle miles traveled to the total vehicle distance the road network can support per hour. Modifying Γ can improve τ and directly inform planning and infrastructure interventions. In this study we focus on measuring the vulnerability of the system by increasing the volume of cars in the network, keeping the road capacity and the empirical spatial dynamics from origins to destinations unchanged. We identify three states of urban traffic, separated by two distinctive transitions. The first one describes the appearance of the first bottlenecks and the second one the collapse of the system. This collapse is marked by a given number of commuters in each city and it is formally characterized by a nonequilibrium phase transition.

Team Members

Luis E. Olmos
Serdar Çolak
Sajjad Shafiei
Meead Saberi,
Marta C. González, Associate Professor of City and Regional Planning

Partner

Lawrence Berkeley National Laboratory

×
Berkeley CED Logo

COLLEGE OF ENVIRONMENTAL DESIGN
University of California, Berkeley
230 Bauer Wurster Hall #1820
Berkeley, CA 94720-1820

  • ARCH
  • LAND
  • CITY
  • IURD
  • Contact
  • Visit
  • For Faculty & Staff
  • Linkedin
  • Accessibility
  • Nondiscrimination
  • Privacy

© 2023 UC Regents; all rights reserved.     Credits