Research Explorer

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Researcher

Giovanni Circella

Publications & Research Data

Awards & Distinctions

54 Results

2025

Examining complex impacts of e-shopping and built environment factors on shopping VMT

Manreet SohiPatrick LoaBasar OzbilenXiatian IogansenYongsung LeeGiovanni Circella

A1 Journal Article in TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT

Exploring the differences in types of commodities and delivery methods among online shoppers during the early stage of the COVID-19 pandemic

Maria Magdalena SilaenDuncan CrowleyYongsung LeeMiguel A. JallerGiovanni Circella

A1 Journal Article in TRANSPORTATION RESEARCH RECORD

Future of passenger mobility in the USA : scenarios for 2030

Alimurtaza KothawalaMaha AhmadRosa Dominguez-FausLewis FultonGiovanni Circella

A1 Journal Article in TRANSPORTATION RESEARCH RECORD

Identifying e-scooter rider profiles in the United States : a latent class cluster analysis

Aurojeet JenaBasar OzbilenAlimurtaza KothawalaYongsung LeeKailai WangCharalampos SaridakisZia WadudYuanxuan YangSusan Grant-MullerSebastian Castellanos et al.

A2 Journal Article in JOURNAL OF CYCLING AND MICROMOBILITY RESEARCH

Investigating travel demand heterogeneity during and after the pandemic in the Northern California Megaregion : a data-driven analysis of origin-destination structural patterns

Siddhartha GulhareRan SunKeita MakinoKrishna BeharaDavid S. BunchGiovanni Circella

A1 Journal Article in TRANSPORTATION RESEARCH RECORD

Not all ride-hailing trips are created equal : an examination of additional trips enabled by ride-hailing and the users who made them

Patrick LoaXiatian IogansenYongsung LeeGiovanni Circella

A1 Journal Article in TRANSPORTATION

Ridehailing use, travel patterns and multimodality : a latent-class cluster analysis of one-week GPS-based travel diaries in California

Xiatian IogansenYongsung LeeMischa YoungJunia CompostellaGiovanni CircellaAlan Jenn

A1 Journal Article in TRAVEL BEHAVIOUR AND SOCIETY

Teleworkers and physical commuters during the COVID-19 pandemic : the change in mobility related attitudes and the intention to telecommute in the future

Andrea L. HauslbauerJai MalikGiovanni CircellaXiatian IogansenTibor Petzoldt

A2 Journal Article in SUSTAINABLE TRANSPORT AND LIVABILITY

The WCTRS global subway efficiency benchmarking task force inaugural report : the key findings, lessons learned, policy issues investigated

Tae Hoon OumKun WangChunyan YuPierlugi CoppolaLuigi CastagnaHironori KatoYiping LeXiao LuoSuhui GanKyungtaek Kim et al.

A1 Journal Article in TRANSPORT POLICY

Travel behavior and transportation emissions in sustainable communities : the case of the sustainable city in Dubai

Alimurtaza KothawalaGiovanni CircellaFarzad AlemiMaya Abou-ZeidTim RogmansKarim El-Jisr

A1 Journal Article in TRANSPORTATION RESEARCH RECORD

2024

Change in work arrangement during the COVID-19 pandemic : a large shift to remote and hybrid work

Xiatian IogansenJai K. MalikYongsung LeeGiovanni Circella

A2 Journal Article in TRANSPORTATION RESEARCH INTERDISCIPLINARY PERSPECTIVES

Correlates of modal substitution and induced travel of ridehailing in California

James GillerMischa YoungGiovanni Circella

A1 Journal Article in TRANSPORTATION RESEARCH RECORD

Impacts of connected and automated vehicles on travel demand and emissions in California

Ran SunGiovanni CircellaMiguel JallerXiaodong QianFarzad Alemi

A1 Journal Article in TRANSPORTATION RESEARCH RECORD

Investigating objective and subjective factors influencing the frequency and purpose of e-scooter trips

Alimurtaza KothawalaAngela HaddadBasar OzbilenGiovanni CircellaCharalampos SaridakisZia WadudYuanxuan YangSusan Grant-MullerSebastian CastellanosChandra R. Bhat

A1 Journal Article in TRANSPORTATION RESEARCH RECORD

Public transport responses to COVID-19 in the United States

Giovanni CircellaSiddhartha Gulhare

Bookchapter in International perspectives on public transport responses to COVID-19 : world conference on transport research society

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 CompostellaKailai WangXiatian IogansenGiovanni Circella

A1 Journal Article in TRANSPORTATION RESEARCH RECORD

2023

Changes in activity organization and travel behavior choices in the United States

Jaime Soza-ParraGiovanni CircellaDaniel Sperling

Bookchapter in Transportation amid pandemics : lessons learned from COVID-19

Deciphering the factors associated with adoption of alternative fuel vehicles in California : an investigation of latent attitudes, socio-demographics, and neighborhood effects

Xiatian IogansenKailai WangDavid BunchGrant MatsonGiovanni Circella

A1 Journal Article in TRANSPORTATION RESEARCH PART A-POLICY AND PRACTICE

Exploring the potential role of bikeshare to complement public transit : the case of San Francisco amid the coronavirus crisis

Xiaodong QianMiguel JallerGiovanni Circella

A1 Journal Article in CITIES

Factors influencing the types of merchandise purchased online : evidence from the 2018 California survey of emerging transportation trends

Niloufar YousefiKailai WangGiovanni Circella

A2 Journal Article in TRANSPORTATION RESEARCH INTERDISCIPLINARY PERSPECTIVES

Transportation and neighborhood priorities of Californians with disabilities : focus group findings

Justin A. FlynnGiovanni CircellaPrashanth S. Venkataram

A1 Journal Article in TRANSPORTATION RESEARCH RECORD

2022

Adoption of telecommuting and changes in travel behavior in Southern California during the COVID-19 pandemic

Jai MalikBailey AffolterGiovanni Circella

Bookchapter in Pandemic in the metropolis : transportation impacts and recovery

Assessing the role of shared mobility services in reducing travel-related greenhouse gases (GHGs) emissions : focusing on America’s young adults

Kailai WangHaobing LiuLong ChengZheyong BianGiovanni Circella

A1 Journal Article in TRAVEL BEHAVIOUR AND SOCIETY

Changes in ative travel during the COVID-19 pandemic

Sean McElroyDillon T. FitchGiovanni Circella

Bookchapter in Pandemic in the metropolis : transportation impacts and recovery

Combining disparate surveys across time to study satisfaction with life : the effects of study context, sampling method, and transport attributes

Xinyi WangF. Atiyya ShawPatricia L. MokhtarianGiovanni CircellaKari E. Watkins

A1 Journal Article in TRANSPORTATION

Conclusion : reflections and lessons from the pandemic

Alexandre M. BayenR. JayakrishnanGiovanni CircellaAnastasia Loukaitou-Sideris

Bookchapter in Pandemic in the metropolis : transportation impacts and recovery

Equitable distribution of bikeshare stations : an optimization approach

Xiaodong QianMiguel JallerGiovanni Circella

A1 Journal Article in JOURNAL OF TRANSPORT GEOGRAPHY

Estimating short-term travel demand models that incorporate personally owned autonomous vehicles

Mustapha HarbJoan L. WalkerJai MalikGiovanni Circella

A1 Journal Article in TRAVEL BEHAVIOUR AND SOCIETY

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 LeeGrace Yun-Hsuan ChenGiovanni CircellaPatricia L. Mokhtarian

A1 Journal Article in TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT

The increase in online shopping during COVID‐19 : who is responsible, will it last, and what does it mean for cities?

Mischa YoungJaime Soza‐ParraGiovanni Circella

A2 Journal Article in REGIONAL SCIENCE POLICY AND PRACTICE

What travel modes do shared e-scooters displace? A review of recent research findings

Kailai WangXiaodong QianDillon Taylor FitchYongsung LeeJai MalikGiovanni Circella

A1 Journal Article in TRANSPORT REVIEWS

2021

A deeper investigation into the effect of the built environment on the use of ridehailing for non-work travel

Jai MalikDavid S. BunchSusan HandyGiovanni Circella

A1 Journal Article in JOURNAL OF TRANSPORT GEOGRAPHY

Do millennials value travel time differently because of productive multitasking? A revealed-preference study of Northern California commuters

Aliaksandr MalokinGiovanni CircellaPatricia L. Mokhtarian

A1 Journal Article in TRANSPORTATION

Exploring the factors that affect the frequency of use of ridehailing and the adoption of shared ridehailing in California

Jai MalikFarzad AlemiGiovanni Circella

A1 Journal Article in TRANSPORTATION RESEARCH RECORD

Glimpse of the future : simulating life with personally owned autonomous vehicles and their implications on travel behaviors

Mustapha HarbJai MalikGiovanni CircellaJoan Walker

A1 Journal Article in TRANSPORTATION RESEARCH RECORD

The role of attitudes in perceptions of bicycle facilities : a latent-class regression approach

Calvin ClarkPatricia L. MokhtarianGiovanni CircellaKari Watkins

A1 Journal Article in TRANSPORTATION RESEARCH PART F-TRAFFIC PSYCHOLOGY AND BEHAVIOUR

What drives the gap? Applying the Blinder–Oaxaca decomposition method to examine generational differences in transportation-related attitudes

Ali EtezadyF. Atiyya ShawPatricia L. MokhtarianGiovanni Circella

A1 Journal Article in TRANSPORTATION

2020

Are millennials more multimodal? A latent-class cluster analysis with attitudes and preferences among millennial and Generation X commuters in California

Yongsung LeeGiovanni CircellaPatricia L. MokhtarianSubhrajit Guhathakurta

A1 Journal Article in TRANSPORTATION

How, and for whom, will activity patterns be modified by self-driving cars? Expectations from the state of Georgia

Sung Hoo KimPatricia L. MokhtarianGiovanni Circella

A1 Journal Article in TRANSPORTATION RESEARCH PART F-TRAFFIC PSYCHOLOGY AND BEHAVIOUR

Will autonomous vehicles change residential location and vehicle ownership? Glimpses from Georgia

Sung Hoo KimPatricia L. MokhtarianGiovanni Circella

A1 Journal Article in TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT

2019

Heterogeneous residential preferences among millennials and members of Generation X in California : a latent-class approach

Yongsung LeeGiovanni CircellaPatricia L. MokhtarianSubhrajit Guhathakurta

A1 Journal Article in TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT

How do activities conducted while commuting influence mode choice? Using revealed preference models to inform public transportation advantage and autonomous vehicle scenarios

Aliaksandr MalokinGiovanni CircellaPatricia L. Mokhtarian

A1 Journal Article in TRANSPORTATION RESEARCH PART A-POLICY AND PRACTICE

ICT, millennials' lifestyles and travel choices

Yongsung LeeGiovanni Circella

Bookchapter in The evolving impacts of ICT on activities and travel behavior

Identifying latent mode-use propensity segments in an all-AV era

Sung Hoo KimGiovanni CircellaPatricia L. Mokhtarian

A1 Journal Article in TRANSPORTATION RESEARCH PART A-POLICY AND PRACTICE

It’s not all fun and games : an investigation of the reported benefits and disadvantages of conducting activities while commuting

F. Atiyya ShawAliaksandr MalokinPatricia L. MokhtarianGiovanni Circella

A1 Journal Article in TRAVEL BEHAVIOUR AND SOCIETY

Millennials in cities : comparing travel behaviour trends across six case study regions

Alexa DelboscNoreen McDonaldGordon StokesKaren LucasGiovanni CircellaYongsung Lee

A1 Journal Article in CITIES

User preferences for bicycle infrastructure in communities with emerging cycling cultures

Calvin ClarkPatricia MokhtarianGiovanni CircellaKari Watkins

A1 Journal Article in TRANSPORTATION RESEARCH RECORD

What drives the use of ridehailing in California? Ordered probit models of the usage frequency of Uber and Lyft

Farzad AlemiGiovanni CircellaPatricia MokhtarianSusan Handy

A1 Journal Article in TRANSPORTATION RESEARCH PART C-EMERGING TECHNOLOGIES

Who doesn’t mind waiting? Examining the relationships between waiting attitudes and person- and travel-related attributes

F. Atiyya ShawAliaksandr MalokinPatricia L. MokhtarianGiovanni Circella

A1 Journal Article in TRANSPORTATION

2018

Exploring the latent constructs behind the use of ridehailing in California

Farzad AlemiGiovanni CircellaPatricia MokhtarianSusan Handy

A1 Journal Article in JOURNAL OF CHOICE MODELLING

Exploring the self-reported long-distance travel frequency of millennials and Generation X in California

Rosaria M. BerlinerLisa Aultman-HallGiovanni Circella

A1 Journal Article in TRANSPORTATION RESEARCH RECORD

Projecting travelers into a world of self-driving vehicles : estimating travel behavior implications via a naturalistic experiment

Mustapha HarbYu XiaoGiovanni CircellaPatricia L. MokhtarianJoan L. Walker

A1 Journal Article in TRANSPORTATION

Transport policy in the era of ridehailing and other disruptive transportation technologies

Giovanni CircellaFarzad Alemi

Bookchapter in Advances in transport policy and planning

What influences travelers to use Uber? Exploring the factors affecting the adoption of on-demand ride services in California

Farzad AlemiGiovanni CircellaSusan HandyPatricia Mokhtarian

A1 Journal Article in TRAVEL BEHAVIOUR AND SOCIETY