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Researcher
Giovanni Circella
Profile
Projects
Publications
Activities
Awards & Distinctions
52
Results
2025
Examining complex impacts of e-shopping and built environment factors on shopping VMT
Manreet Sohi
Patrick Loa
Basar Ozbilen
Xiatian Iogansen
Yongsung Lee
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT
2025
Future of passenger mobility in the USA : scenarios for 2030
Alimurtaza Kothawala
Maha Ahmad
Rosa Dominguez-Faus
Lewis Fulton
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION RESEARCH RECORD
2025
Investigating travel demand heterogeneity during and after the pandemic in the Northern California Megaregion : a data-driven analysis of origin-destination structural patterns
Siddhartha Gulhare
Ran Sun
Keita Makino
Krishna Behara
David S. Bunch
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION RESEARCH RECORD
2025
Not all ride-hailing trips are created equal : an examination of additional trips enabled by ride-hailing and the users who made them
Patrick Loa
Xiatian Iogansen
Yongsung Lee
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION
2025
Ridehailing use, travel patterns and multimodality : a latent-class cluster analysis of one-week GPS-based travel diaries in California
Xiatian Iogansen
Yongsung Lee
Mischa Young
Junia Compostella
Giovanni Circella
Alan Jenn
A1
Journal Article
in
TRAVEL BEHAVIOUR AND SOCIETY
2025
The WCTRS global subway efficiency benchmarking task force inaugural report : the key findings, lessons learned, policy issues investigated
Tae Hoon Oum
Kun Wang
Chunyan Yu
Pierlugi Coppola
Luigi Castagna
Hironori Kato
Yiping Le
Xiao Luo
Suhui Gan
Kyungtaek Kim
et al.
A1
Journal Article
in
TRANSPORT POLICY
2025
2024
Change in work arrangement during the COVID-19 pandemic : a large shift to remote and hybrid work
Xiatian Iogansen
Jai K. Malik
Yongsung Lee
Giovanni Circella
A2
Journal Article
in
TRANSPORTATION RESEARCH INTERDISCIPLINARY PERSPECTIVES
2024
Correlates of modal substitution and induced travel of ridehailing in California
James Giller
Mischa Young
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION RESEARCH RECORD
2024
Exploring the differences in types of commodities and delivery methods among online shoppers during the early stage of the COVID-19 pandemic
Maria Magdalena Silaen
Duncan Crowley
Yongsung Lee
Miguel A. Jaller
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION RESEARCH RECORD
2024
Impacts of connected and automated vehicles on travel demand and emissions in California
Ran Sun
Giovanni Circella
Miguel Jaller
Xiaodong Qian
Farzad Alemi
A1
Journal Article
in
TRANSPORTATION RESEARCH RECORD
2024
Investigating objective and subjective factors influencing the frequency and purpose of e-scooter trips
Alimurtaza Kothawala
Angela Haddad
Basar Ozbilen
Giovanni Circella
Charalampos Saridakis
Zia Wadud
Yuanxuan Yang
Susan Grant-Muller
Sebastian Castellanos
Chandra R. Bhat
A1
Journal Article
in
TRANSPORTATION RESEARCH RECORD
2024
Public transport responses to COVID-19 in the United States
Giovanni Circella
Siddhartha Gulhare
Bookchapter
in
International perspectives on public transport responses to COVID-19 : world conference on transport research society
2024
Travel behavior and transportation emissions in sustainable communities : the case of the sustainable city in Dubai
Alimurtaza Kothawala
Giovanni Circella
Farzad Alemi
Maya Abou-Zeid
Tim Rogmans
Karim El-Jisr
A1
Journal Article
in
TRANSPORTATION RESEARCH RECORD
2024
Trips to the grocery store and online grocery shopping : a comparison of individual behaviors before and during the first wave of the COVID-19 pandemic
Junia Compostella
Kailai Wang
Xiatian Iogansen
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION RESEARCH RECORD
2024
2023
Changes in activity organization and travel behavior choices in the United States
Jaime Soza-Parra
Giovanni Circella
Daniel Sperling
Bookchapter
in
Transportation amid pandemics : lessons learned from COVID-19
2023
Deciphering the factors associated with adoption of alternative fuel vehicles in California : an investigation of latent attitudes, socio-demographics, and neighborhood effects
Xiatian Iogansen
Kailai Wang
David Bunch
Grant Matson
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION RESEARCH PART A-POLICY AND PRACTICE
2023
Exploring the potential role of bikeshare to complement public transit : the case of San Francisco amid the coronavirus crisis
Xiaodong Qian
Miguel Jaller
Giovanni Circella
A1
Journal Article
in
CITIES
2023
Factors influencing the types of merchandise purchased online : evidence from the 2018 California survey of emerging transportation trends
Niloufar Yousefi
Kailai Wang
Giovanni Circella
A2
Journal Article
in
TRANSPORTATION RESEARCH INTERDISCIPLINARY PERSPECTIVES
2023
Transportation and neighborhood priorities of Californians with disabilities : focus group findings
Justin A. Flynn
Giovanni Circella
Prashanth S. Venkataram
A1
Journal Article
in
TRANSPORTATION RESEARCH RECORD
2023
2022
Adoption of telecommuting and changes in travel behavior in Southern California during the COVID-19 pandemic
Jai Malik
Bailey Affolter
Giovanni Circella
Bookchapter
in
Pandemic in the metropolis : transportation impacts and recovery
2022
Assessing the role of shared mobility services in reducing travel-related greenhouse gases (GHGs) emissions : focusing on America’s young adults
Kailai Wang
Haobing Liu
Long Cheng
Zheyong Bian
Giovanni Circella
A1
Journal Article
in
TRAVEL BEHAVIOUR AND SOCIETY
2022
Changes in ative travel during the COVID-19 pandemic
Sean McElroy
Dillon T. Fitch
Giovanni Circella
Bookchapter
in
Pandemic in the metropolis : transportation impacts and recovery
2022
Combining disparate surveys across time to study satisfaction with life : the effects of study context, sampling method, and transport attributes
Xinyi Wang
F. Atiyya Shaw
Patricia L. Mokhtarian
Giovanni Circella
Kari E. Watkins
A1
Journal Article
in
TRANSPORTATION
2022
Conclusion : reflections and lessons from the pandemic
Alexandre M. Bayen
R. Jayakrishnan
Giovanni Circella
Anastasia Loukaitou-Sideris
Bookchapter
in
Pandemic in the metropolis : transportation impacts and recovery
2022
Equitable distribution of bikeshare stations : an optimization approach
Xiaodong Qian
Miguel Jaller
Giovanni Circella
A1
Journal Article
in
JOURNAL OF TRANSPORT GEOGRAPHY
2022
Estimating short-term travel demand models that incorporate personally owned autonomous vehicles
Mustapha Harb
Joan L. Walker
Jai Malik
Giovanni Circella
A1
Journal Article
in
TRAVEL BEHAVIOUR AND SOCIETY
2022
Substitution or complementarity? A latent-class cluster analysis of ridehailing impacts on the use of other travel modes in three southern U.S. cities
Yongsung Lee
Grace Yun-Hsuan Chen
Giovanni Circella
Patricia L. Mokhtarian
A1
Journal Article
in
TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT
2022
The increase in online shopping during COVID‐19 : who is responsible, will it last, and what does it mean for cities?
Mischa Young
Jaime Soza‐Parra
Giovanni Circella
A2
Journal Article
in
REGIONAL SCIENCE POLICY AND PRACTICE
2022
What travel modes do shared e-scooters displace? A review of recent research findings
Kailai Wang
Xiaodong Qian
Dillon Taylor Fitch
Yongsung Lee
Jai Malik
Giovanni Circella
A1
Journal Article
in
TRANSPORT REVIEWS
2022
2021
A deeper investigation into the effect of the built environment on the use of ridehailing for non-work travel
Jai Malik
David S. Bunch
Susan Handy
Giovanni Circella
A1
Journal Article
in
JOURNAL OF TRANSPORT GEOGRAPHY
2021
Do millennials value travel time differently because of productive multitasking? A revealed-preference study of Northern California commuters
Aliaksandr Malokin
Giovanni Circella
Patricia L. Mokhtarian
A1
Journal Article
in
TRANSPORTATION
2021
Exploring the factors that affect the frequency of use of ridehailing and the adoption of shared ridehailing in California
Jai Malik
Farzad Alemi
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION RESEARCH RECORD
2021
Glimpse of the future : simulating life with personally owned autonomous vehicles and their implications on travel behaviors
Mustapha Harb
Jai Malik
Giovanni Circella
Joan Walker
A1
Journal Article
in
TRANSPORTATION RESEARCH RECORD
2021
The role of attitudes in perceptions of bicycle facilities : a latent-class regression approach
Calvin Clark
Patricia L. Mokhtarian
Giovanni Circella
Kari Watkins
A1
Journal Article
in
TRANSPORTATION RESEARCH PART F-TRAFFIC PSYCHOLOGY AND BEHAVIOUR
2021
What drives the gap? Applying the Blinder–Oaxaca decomposition method to examine generational differences in transportation-related attitudes
Ali Etezady
F. Atiyya Shaw
Patricia L. Mokhtarian
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION
2021
2020
Are millennials more multimodal? A latent-class cluster analysis with attitudes and preferences among millennial and Generation X commuters in California
Yongsung Lee
Giovanni Circella
Patricia L. Mokhtarian
Subhrajit Guhathakurta
A1
Journal Article
in
TRANSPORTATION
2020
How, and for whom, will activity patterns be modified by self-driving cars? Expectations from the state of Georgia
Sung Hoo Kim
Patricia L. Mokhtarian
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION RESEARCH PART F-TRAFFIC PSYCHOLOGY AND BEHAVIOUR
2020
Will autonomous vehicles change residential location and vehicle ownership? Glimpses from Georgia
Sung Hoo Kim
Patricia L. Mokhtarian
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT
2020
2019
Heterogeneous residential preferences among millennials and members of Generation X in California : a latent-class approach
Yongsung Lee
Giovanni Circella
Patricia L. Mokhtarian
Subhrajit Guhathakurta
A1
Journal Article
in
TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT
2019
How do activities conducted while commuting influence mode choice? Using revealed preference models to inform public transportation advantage and autonomous vehicle scenarios
Aliaksandr Malokin
Giovanni Circella
Patricia L. Mokhtarian
A1
Journal Article
in
TRANSPORTATION RESEARCH PART A-POLICY AND PRACTICE
2019
ICT, millennials' lifestyles and travel choices
Yongsung Lee
Giovanni Circella
Bookchapter
in
The evolving impacts of ICT on activities and travel behavior
2019
Identifying latent mode-use propensity segments in an all-AV era
Sung Hoo Kim
Giovanni Circella
Patricia L. Mokhtarian
A1
Journal Article
in
TRANSPORTATION RESEARCH PART A-POLICY AND PRACTICE
2019
It’s not all fun and games : an investigation of the reported benefits and disadvantages of conducting activities while commuting
F. Atiyya Shaw
Aliaksandr Malokin
Patricia L. Mokhtarian
Giovanni Circella
A1
Journal Article
in
TRAVEL BEHAVIOUR AND SOCIETY
2019
Millennials in cities : comparing travel behaviour trends across six case study regions
Alexa Delbosc
Noreen McDonald
Gordon Stokes
Karen Lucas
Giovanni Circella
Yongsung Lee
A1
Journal Article
in
CITIES
2019
User preferences for bicycle infrastructure in communities with emerging cycling cultures
Calvin Clark
Patricia Mokhtarian
Giovanni Circella
Kari Watkins
A1
Journal Article
in
TRANSPORTATION RESEARCH RECORD
2019
What drives the use of ridehailing in California? Ordered probit models of the usage frequency of Uber and Lyft
Farzad Alemi
Giovanni Circella
Patricia Mokhtarian
Susan Handy
A1
Journal Article
in
TRANSPORTATION RESEARCH PART C-EMERGING TECHNOLOGIES
2019
Who doesn’t mind waiting? Examining the relationships between waiting attitudes and person- and travel-related attributes
F. Atiyya Shaw
Aliaksandr Malokin
Patricia L. Mokhtarian
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION
2019
2018
Exploring the latent constructs behind the use of ridehailing in California
Farzad Alemi
Giovanni Circella
Patricia Mokhtarian
Susan Handy
A1
Journal Article
in
JOURNAL OF CHOICE MODELLING
2018
Exploring the self-reported long-distance travel frequency of millennials and Generation X in California
Rosaria M. Berliner
Lisa Aultman-Hall
Giovanni Circella
A1
Journal Article
in
TRANSPORTATION RESEARCH RECORD
2018
Projecting travelers into a world of self-driving vehicles : estimating travel behavior implications via a naturalistic experiment
Mustapha Harb
Yu Xiao
Giovanni Circella
Patricia L. Mokhtarian
Joan L. Walker
A1
Journal Article
in
TRANSPORTATION
2018
Transport policy in the era of ridehailing and other disruptive transportation technologies
Giovanni Circella
Farzad Alemi
Bookchapter
in
Advances in transport policy and planning
2018
What influences travelers to use Uber? Exploring the factors affecting the adoption of on-demand ride services in California
Farzad Alemi
Giovanni Circella
Susan Handy
Patricia Mokhtarian
A1
Journal Article
in
TRAVEL BEHAVIOUR AND SOCIETY
2018