Item Type | Journal Article |
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Author | Karzan Ismael |
Author | Domokos Esztergár-Kiss |
Author | Szabolcs Duleba |
URL | https://doi.org/10.1186/s12544-023-00578-1 |
Volume | 15 |
Issue | 1 |
Pages | 5 |
Publication | European Transport Research Review |
Date | 2023-03-09 |
Journal Abbr | Eur. Transp. Res. Rev. |
DOI | 10.1186/s12544-023-00578-1 |
Library Catalog | Springer Link |
Language | en |
Abstract | The current paper focuses on a comparative analysis of both public transport (PT) and private vehicle (PV) users’ perceptions on the quality of the service. To detect the key components of PT attributes a new hybrid methodology is applied, combining the importance-performance analysis and the importance-performance map analysis. The proposed hybrid approach is simpler and more integrated than the existing methods in the literature. The sample comprises an online panel and a total of 1028 questionnaires for PV and PT users surveyed during the pandemic period in Budapest. The results of the applied methods show that among the different groups, the service hour, the proximity, and the frequency attributes are important and performed well in the years of COVID-19. On the other hand, the temperature and the cleanliness factors are not significant predictors of the PV and PT users’ general satisfaction. The obtained results can be used by local governments and authorities, who seek to identify areas to enhance the service quality of PT during movement restrictions in a pandemic wave. |
Date Added | 3/10/2023, 9:24:33 AM |
Item Type | Journal Article |
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Author | Mohammad-Ali Gorji |
Author | Seyyed-Nader Shetab-Boushehri |
Author | Meisam Akbarzadeh |
URL | https://www.sciencedirect.com/science/article/pii/S0967070X22003213 |
Volume | 133 |
Pages | 27-44 |
Publication | Transport Policy |
Date | 2023-03-01 |
Journal Abbr | Transport Policy |
DOI | 10.1016/j.tranpol.2022.11.009 |
Library Catalog | ScienceDirect |
Language | en |
Abstract | The influential role of health protocols in preventing the spread of the COVID-19 disease has led governments to seek effective methods for implementing these protocols in the society. Considering the importance of public transportation system in spread of viruses, this paper introduces and analyzes some methods of inspecting urban public transportation companies using system dynamics approach. First, the base model, which represents the status of a public transportation terminal, was created and validated using a system dynamics simulation approach. Then the impact of two penalty policies, including fixed penalty policy (FPP) and variable penalty policy (VPP) on the violations within the terminal was investigated. The simulation results show that the variable penalty policy significantly reduces the violations of passenger terminal drivers. Next, the extended model was developed which considered several terminals. Finally, by presenting two policies of fixed inspector assignment (FIA) and variable inspector assignment (VIA), the effect of four scenarios of combining inspection and penalties policies was investigated. The simulation results showed that combining the variable penalty and variable inspector assignment policies could significantly reduce terminal violations. Also, the implementation of this policy does not require an additional inspector. The results can help city managers to adopt appropriate inspection policies. |
Date Added | 2/15/2023, 9:33:44 AM |
Item Type | Journal Article |
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Author | Anastasios Skoufas |
Author | Tiziana Campisi |
Author | Socrates Basbas |
Author | Giovanni Tesoriere |
URL | https://www.sciencedirect.com/science/article/pii/S2352146523002144 |
Series | AIIT 3rd International Conference on Transport Infrastructure and Systems (TIS ROMA 2022), 15th-16th September 2022, Rome, Italy |
Volume | 69 |
Pages | 528-535 |
Publication | Transportation Research Procedia |
Date | 2023-01-01 |
Journal Abbr | Transportation Research Procedia |
DOI | 10.1016/j.trpro.2023.02.204 |
Library Catalog | ScienceDirect |
Language | en |
Abstract | The promotion of active transportation modes in urban areas is a key challenge towards the minimization of motor traffic externalities. After the COVID-19 outbreak, cities around the world started investing heavily in infrastructure for pedestrians and cyclists towards the enhancement of social distancing. However, infrastructure adequacy in the post COVID-19 era needs to be evaluated. Level of Service (LOS) as it is proposed by the Highway Capacity Manual (HCM) is the most common methodological tool to assess pedestrian facilities. Nonetheless, pedestrians’ perceptions are more than needed especially in the post COVID-19 era. In this paper an online survey is conducted for the assessment of the main pedestrian facilities in the city of Thessaloniki, Greece. Respondents’ sociodemographic characteristics, their social distancing perception as well as their travel habits after the COVID-19 outbreak are concerned. The main research goal is to reveal the most significant factors that affect pedestrians’ perceived level of service (PLOS) using regression modeling. The results can shed light on respondents’ perceptions about PLOS in the post COVID-19 era. Last, results can assist in policy making for the promotion of active transport modes in urban areas with respect to the current health recommendations for public spaces. |
Date Added | 2/23/2023, 9:42:26 AM |
Item Type | Journal Article |
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Author | Hannah Hook |
Author | Jonas De Vos |
Author | Veronique Van Acker |
Author | Frank Witlox |
URL | https://www.sciencedirect.com/science/article/pii/S136984782300027X |
Volume | 94 |
Pages | 99-113 |
Publication | Transportation Research Part F: Traffic Psychology and Behaviour |
Date | 2023-04-01 |
Journal Abbr | Transportation Research Part F: Traffic Psychology and Behaviour |
DOI | 10.1016/j.trf.2023.01.025 |
Library Catalog | ScienceDirect |
Language | en |
Abstract | The COVID-19 pandemic illustrated that undirected travel (UT), or trips taken for their own sake, can partly compensate for a reduction in destination-based trips due to governmental regulations. Consequently, UT (in general, but particularly during the pandemic) may be especially satisfying and therefore important to subjective well-being. However, through the course of the pandemic, changes in UT were anticipated as individuals adapted to a ‘new normal’. This research – conducted in Flanders, Belgium – first investigates whether the characteristics of and satisfaction with UT persisted after one year into the pandemic (April 2020 to May 2021) using longitudinal panel data from two waves (n = 332). Results of paired sample t-tests indicate that UT satisfaction increased though duration of trips decreased, and results of the Sign test indicate that the frequency of UT generally decreased. Second, this research investigates characteristics of individuals with different UT behavior. Six profiles of UT behavior were identified based on starting or stopping UT, increasing or decreasing UT, maintaining UT frequency, or not participating in UT. Chi2 tests identified differences among profiles based on wave 1 UT frequency, most recent trip mode, socio-demographic, and household characteristics. Results indicate that participation in UT might motivate future UT, one to three UT trips per week is a maintainable frequency, UT might be important to those with smaller living spaces and those living with children or other adults, and suggest that attention should be paid to mobility equity, including how and for whom systems are planned. These findings are important to understanding the effects of long-term governmental regulations in response to the COVID-19 pandemic on travel behavior, and how investigating UT might help to challenge and reimagine traditional mobility systems post-pandemic. |
Date Added | 4/6/2023, 10:04:23 AM |
Item Type | Journal Article |
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Author | David A. Hensher |
Author | Matthew J. Beck |
URL | https://www.sciencedirect.com/science/article/pii/S0965856422003305 |
Volume | 168 |
Pages | 103579 |
Publication | Transportation Research Part A: Policy and Practice |
Date | 2023-02-01 |
Journal Abbr | Transportation Research Part A: Policy and Practice |
DOI | 10.1016/j.tra.2022.103579 |
Library Catalog | ScienceDirect |
Language | en |
Abstract | The COVID-19 pandemic has had a significant impact on the way we work and live, with working from home becoming more than the occasional desire but a regular feature of work and life. While an increasing number of research studies have promoted the virtues of what is often described as the positive unintended consequences of the pandemic, there are also downsides, especially during periods of imposed restrictions on the ability to get out and about, that have broadly been described as impacting mental health and life’s worth. In this paper we use data collected in New South Wales during September 2020 and June 2021, seven and 16 months after the pandemic began, to obtain an understanding of the extent to which the pandemic has impacted on how worthwhile things done in life are for workers. We investigate whether there is a systematic behavioural link with working from home, reduced commuting linked to distance to work, and various socio-economic characteristics. The evidence suggests that the opportunity to have reduced commuting activity linked to working from home and increased perceived work-related productivity have contributed in a positive way to improving the worth status of life, offsetting some of the negative consequences of the pandemic. |
Date Added | 2/1/2023, 10:38:42 AM |
Item Type | Journal Article |
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Author | Dolly L. Hall-Quinlan |
Author | Hao He |
Author | Xinrong Ren |
Author | Timothy P. Canty |
Author | Ross J. Salawitch |
Author | Phillip Stratton |
Author | Russell R. Dickerson |
URL | https://www.sciencedirect.com/science/article/pii/S1352231023000754 |
Pages | 119649 |
Publication | Atmospheric Environment |
Date | 2023-02-11 |
Journal Abbr | Atmospheric Environment |
DOI | 10.1016/j.atmosenv.2023.119649 |
Library Catalog | ScienceDirect |
Language | en |
Abstract | Vehicles are a major source of anthropogenic emissions of carbon monoxide (CO), nitrogen oxides (NOx), and black carbon (BC). CO and NOx are known to be harmful to human health and contribute to ozone formation, while BC absorbs solar radiation that contributes to global warming and also has negative impacts on human health and visibility. Travel restrictions implemented during the COVID-19 pandemic provide researchers the opportunity to study the impact of large, on-road traffic reductions on local air quality. Traffic counts collected along Interstate-95, a major eight-lane highway in Maryland (US), reveal a 60% decrease in passenger car totals and an 8.6% (combination-unit) and 21% (single-unit) decrease in truck traffic counts in April 2020 relative to prior Aprils. The decrease in total on-road vehicles led to the near-elimination in stop-and-go traffic and a 14% increase in the mean vehicle speed during April 2020. Ambient near-road (NR) BC, CO, NOx, and carbon dioxide (CO2) measurements were used to determine vehicular emission ratios (ΔBC/ΔCO, ΔBC/ΔCO2, ΔNOx/ΔCO, ΔNOx/ΔCO2, and ΔCO/ΔCO2), with each ratio defined as the slope value of a linear regression performed on the concentrations of two pollutants within an hour. A decrease of up to a factor of two in ΔBC/ΔCO, ΔBC/ΔCO2, ΔNOx/ΔCO2, and in the fraction of on-road diesel vehicles from weekdays to weekends shows diesel vehicles to be the dominant source of BC and NOx emissions at this NR site. We estimate up to a 70% reduction in BC emissions in April 2020 compared to earlier years, and attribute much of this to lower diesel BC emissions resulting from improvements in traffic flow and fewer instances of acceleration and braking. Future efforts to reduce vehicular BC emissions should focus on improving traffic flow or turbocharger lag within diesel engines. Inferred BC emissions from the NR site also depend on ambient temperature, with an increase of 54% in ΔBC/ΔCO from −5 to 20 °C during the cold season, similar to previous studies that reported increasing BC emissions with rising temperature. The default setting of MOVES3, the current version of the mobile emission model used by the US EPA, does not adjust hot-running BC emissions for ambient temperature. Future work will focus on improving the accuracy of mobile emissions in air quality modeling by incorporating the effects of temperature and traffic flow in the system used to generate mobile emissions input for commonly used air quality models. |
Date Added | 2/16/2023, 9:37:37 AM |
Item Type | Journal Article |
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Author | Xin Meng |
Author | Mingxue Guo |
Author | Ziyou Gao |
Author | Liujiang Kang |
URL | https://www.sciencedirect.com/science/article/pii/S0967070X23000896 |
Volume | 136 |
Pages | 209-227 |
Publication | Transport Policy |
Date | 2023-06-01 |
Journal Abbr | Transport Policy |
DOI | 10.1016/j.tranpol.2023.04.002 |
Library Catalog | ScienceDirect |
Language | en |
Abstract | To investigate the interaction between travel restriction policies and the spread of COVID-19, we collected data on human mobility trends, population density, Gross Domestic Product (GDP) per capita, daily new confirmed cases (or deaths), and the total confirmed cases (or deaths), as well as governmental travel restriction policies from 33 countries. The data collection period was from April 2020 to February 2022, resulting in 24,090 data points. We then developed a structural causal model to describe the causal relationship between these variables. Using the Dowhy method to solve the developed model, we found several significant results that passed the refutation test. Specifically, travel restriction policies played an important role in slowing the spread of COVID-19 until May 2021. International travel controls and school closures had an impact on reducing the spread of the pandemic beyond the impact of travel restrictions. Additionally, May 2021 marked a turning point in the spread of COVID-19 as it became more infectious, but the mortality rate gradually decreased. The impact of travel restriction policies on human mobility and the pandemic diminished over time. Overall, the cancellation of public events and restrictions on public gatherings were more effective than other travel restriction policies. Our findings provide insights into the effects of travel restriction policies and travel behavioral changes on the spread of COVID-19, while controlling for informational and other confounding variables. This experience can be applied in the future to respond to emergent infectious diseases. |
Date Added | 4/24/2023, 9:47:25 AM |
Item Type | Journal Article |
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Author | Ennis Marshall |
Author | Mohammadali Shirazi |
Author | Amir Shahlaee |
Author | John N. Ivan |
URL | https://www.sciencedirect.com/science/article/pii/S0001457523000854 |
Volume | 187 |
Pages | 107038 |
Publication | Accident Analysis & Prevention |
Date | 2023-07-01 |
Journal Abbr | Accident Analysis & Prevention |
DOI | 10.1016/j.aap.2023.107038 |
Library Catalog | ScienceDirect |
Language | en |
Abstract | Stay-at-home orders - imposed to prevent the spread of COVID-19 - drastically changed the way highways operate. Despite lower traffic volumes during these times, the rate of fatal and serious injury crashes increased significantly across the United States due to increased speeding on roads with less traffic congestion and lower levels of speed enforcement. This paper uses a mixed effect binomial regression model to investigate the impact of stay-at-home orders on odds of speeding on urban limited access highway segments in Maine and Connecticut. This paper also establishes a link between traffic density and the odds of speeding. For this purpose, hourly speed and volume probe data were collected on limited access highway segments for the U.S. states of Maine and Connecticut to estimate the traffic density. The traffic density was then combined with the roadway geometric characteristics, speed limit, as well as dummy variables denoting the time of the week, time of the day, COVID-19 phases (before, during and after stay-at-home order), and the interactions between them. Density, represented in the model as Level of Service, was found to be associated with the odds of speeding, with better levels of service such as A, or B (low density) resulting in the higher odds that drivers would speed. We also found that narrower shoulder width could result in lower odds of speeding. Furthermore, we found that during the stay-at-home order, the odds of speeding by more than 10, 15, and 20 mph increased respectively by 54%, 71% and 85% in Connecticut, and by 15%, 36%, and 65% in Maine during evening peak hours. Additionally, one year after the onset of the pandemic, during evening peak hours, the odds of speeding greater than 10, 15, and 20 mph were still 35%, 29%, and 19% greater in Connecticut and 35% 35% and 20% greater in Maine compared to before pandemic. |
Date Added | 4/20/2023, 9:33:54 AM |
Item Type | Journal Article |
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Author | Jason Soria |
Author | Deirdre Edward |
Author | Amanda Stathopoulos |
URL | https://www.sciencedirect.com/science/article/pii/S0967070X23000471 |
Volume | 134 |
Pages | 139-154 |
Publication | Transport Policy |
Date | 2023-04-01 |
Journal Abbr | Transport Policy |
DOI | 10.1016/j.tranpol.2023.02.016 |
Library Catalog | ScienceDirect |
Language | en |
Abstract | To adhere to health regulations and reduce the risks associated with the COVID-19 pandemic, employers, mobility operators, and travelers alike adopted new strategies such as teleworking, rigorous sanitation, and social distancing. In this research, we examine the individual-level factors contributing to transit ridership abandonment and return decisions. We utilize comprehensive survey-based data of transit users in the Chicago metropolitan area (N = 5648) collected prior to reopening. We investigate three ridership behaviors, namely (1) discontinued public transit ridership, (2) the intent to return to pre-pandemic transit ridership levels once health concerns are alleviated, and (3) the likelihood of using public transit more often if its fare systems are integrated with other mobility services such as ridehailing and micromobility. Examining the role of sociodemographics, employment characteristics, transit investment priorities, and travel behavior before and during the pandemic, this research reveals fine-grained details about transit usage decline, as well as future intentions. The results indicate that teleworking, unemployment, and vehicle access are the major factors behind discontinued transit ridership. Analysis of race, ethnicity, and gender effects reveals that vulnerable users often have a higher risk of abandonment coupled with a lower likelihood of returning. These results point to the need for transit agencies to consider the specific concerns of ethnic/racial minorities and women. Encouragingly, there is an opportunity for agencies to attract more ridership with fare integration. Several respondent segments would use transit more if fare systems are integrated with ridehailing and micromobility, highlighting the importance of lowering the barriers to accessing these mobility services. This research informs several policies that can be adopted by transit agencies and other mobility providers. We discuss the importance of an equitable return to transit, possibilities for Mobility-as-a-Service with fare integration as a starting point and stress the significance of teleworking in future transit policies. |
Date Added | 3/9/2023, 8:22:17 AM |
Item Type | Journal Article |
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Author | Maider Llaguno-Munitxa |
Author | Elie Bou-Zeid |
URL | https://www.sciencedirect.com/science/article/pii/S1361920922004060 |
Volume | 115 |
Pages | 103580 |
Publication | Transportation Research Part D: Transport and Environment |
Date | 2023-02-01 |
Journal Abbr | Transportation Research Part D: Transport and Environment |
DOI | 10.1016/j.trd.2022.103580 |
Library Catalog | ScienceDirect |
Language | en |
Abstract | While the decrease in air pollutant concentration during the COVID-19 lockdown is well documented, neighborhood-scale and multi-city data have not yet been explored systematically to derive a generalizable quantitative link to the drop in vehicular traffic. To bridge this gap, high spatial resolution air quality and georeferenced traffic datasets were compiled for the city of London during three weeks with significant differences in traffic. The London analysis was then augmented with a meta-analysis of lower-resolution studies from 12 other cities. The results confirm that the improvement in air quality can be partially attributed to the drop of traffic density, and more importantly quantifies the elasticity (0.71 for NO2 & 0.56 for PM2.5) of their linkages. The findings can also inform on the future impacts of the ongoing shift to electric vehicles and micro-mobility on urban air quality. |
Date Added | 2/1/2023, 9:34:43 AM |
Item Type | Journal Article |
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Author | Beat Hintermann |
Author | Beaumont Schoeman |
Author | Joseph Molloy |
Author | Thomas Schatzmann |
Author | Christopher Tchervenkov |
Author | Kay W. Axhausen |
URL | https://www.sciencedirect.com/science/article/pii/S0965856423000022 |
Volume | 169 |
Pages | 103582 |
Publication | Transportation Research Part A: Policy and Practice |
Date | 2023-03-01 |
Journal Abbr | Transportation Research Part A: Policy and Practice |
DOI | 10.1016/j.tra.2023.103582 |
Library Catalog | ScienceDirect |
Language | en |
Abstract | We study the effect of the COVID-19 pandemic and the associated government measures on individual mobility choices in Switzerland. Our data is based on over 1,600 people for which we observe all trips during eight weeks before the pandemic and until May 2021. We find an overall reduction of travel distances by 60 percent, followed by a gradual recovery during the subsequent re-opening of the economy. Whereas driving distances have almost completely recovered, public transport re-mains under-used. The introduction of a requirement to wear a mask in public transport had no measurable impact on ridership. The individual travel response to the pandemic varies along socio-economic dimensions such as education and house-hold size, with mobility tool ownership, and with personal values and lifestyles. We find no evidence for a significant substitution of leisure travel to compensate for the reduction in work-related travel. |
Date Added | 2/27/2023, 9:30:25 AM |
Item Type | Journal Article |
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Author | Claudia Andruetto |
Author | Elisa Bin |
Author | Yusak Susilo |
Author | Anna Pernestål |
URL | https://www.sciencedirect.com/science/article/pii/S0965856423000642 |
Volume | 171 |
Pages | 103644 |
Publication | Transportation Research Part A: Policy and Practice |
Date | 2023-05-01 |
Journal Abbr | Transportation Research Part A: Policy and Practice |
DOI | 10.1016/j.tra.2023.103644 |
Library Catalog | ScienceDirect |
Language | en |
Abstract | Using 530 responses from an online questionnaire, this study aims to investigate the transition from physical to online shopping alternatives during the first wave of the COVID-19 pandemic at the individual level. The focus areas of the study are Sweden and Italy, two European countries that implemented contrasting prevention measures. This study analyses the impacts of the pandemic on the transition to online shopping activities, and identifies who among the respondents changed their shopping behaviour the most and how; and what the different shopping strategies are and who adopted them. Multivariate statistical analyses, including linear and binary logistic regressions and multinomial logit models, were used to analyse the dataset. In the analysis, the dataset was split between Italy and Sweden to take into account the contrasting prevention measures and the different social and economic backgrounds of the two countries; the results of this study confirm and highlight these differences. Moreover, the socio-demographic and household structures of the respondents were found to influence the amount and the direction of change in shopping behaviour during the first wave of the pandemic. The study also indicates some policies that can be implemented and/or further strengthened to increase the resilience of citizens in facing pandemics and to derive benefit from the behavioural changes that took place during the first wave of the pandemic. |
Date Added | 4/18/2023, 10:35:02 AM |