Pub Date : 2024-01-02DOI: 10.1080/15568318.2023.2197865
Raimonds Aronietis , Thierry Vanelslander
Catenary electric road system (ERS) is a technology that enables powering pantograph-equipped road freight vehicles with electricity from overhead catenary while in motorway traffic to provide energy for propulsion and charging the vehicle batteries. Once leaving the catenary road, the energy stored in the battery or another energy source, e.g. hybrid diesel, natural gas or hydrogen, is used for propulsion.
In this research we model the deployment of such catenary network on the Flemish road network in Belgium to identify three points. First, what are the economic impacts of the catenary electric road system implementation in Flanders for the road haulage industry, their clients and wider society under different technology adoption scenarios. Second, what is the most optimal way of building such a catenary network. And last, what are the synergies that would come from implementation of this technology in the neighboring countries and how to benefit from those.
In this research we find that catenary ERS has the potential to be developed into an economically sustainable and relatively cheap way of decarbonizing road freight transport. It offers considerable economic incentives for all the involved stakeholders and is beneficial to the society as a whole.
{"title":"Economic impacts of the catenary electric road system implementation in Flanders","authors":"Raimonds Aronietis , Thierry Vanelslander","doi":"10.1080/15568318.2023.2197865","DOIUrl":"10.1080/15568318.2023.2197865","url":null,"abstract":"<div><p>Catenary electric road system (ERS) is a technology that enables powering pantograph-equipped road freight vehicles with electricity from overhead catenary while in motorway traffic to provide energy for propulsion and charging the vehicle batteries. Once leaving the catenary road, the energy stored in the battery or another energy source, e.g. hybrid diesel, natural gas or hydrogen, is used for propulsion.</p></div><div><p>In this research we model the deployment of such catenary network on the Flemish road network in Belgium to identify three points. First, what are the economic impacts of the catenary electric road system implementation in Flanders for the road haulage industry, their clients and wider society under different technology adoption scenarios. Second, what is the most optimal way of building such a catenary network. And last, what are the synergies that would come from implementation of this technology in the neighboring countries and how to benefit from those.</p></div><div><p>In this research we find that catenary ERS has the potential to be developed into an economically sustainable and relatively cheap way of decarbonizing road freight transport. It offers considerable economic incentives for all the involved stakeholders and is beneficial to the society as a whole.</p></div>","PeriodicalId":47824,"journal":{"name":"International Journal of Sustainable Transportation","volume":"18 1","pages":"Pages 46-61"},"PeriodicalIF":3.9,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46569235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-02DOI: 10.1080/15568318.2023.2218285
Ying Lu , Anthony Kimpton , Carlo G. Prato , Neil Sipe , Jonathan Corcoran
The first and last mile (FLM) problem is the lack of adequate connectivity between transit stations and trip origins/destinations. Consequently, this problem increases the probability of driving private cars directly to the destinations and reduces the patronage of public transit. For appealing the use of sustainable transport for accessing public transit, it is imperative to identify the factors influencing FLM travel mode choice. This review synthesizes the empirical FLM literature and identifies the key factors that influence FLM travel mode choice including conventional factors (e.g. socio-demographic characteristics and built environments); exogenous factors that can reduce the appeal of sustainable FLM transport (e.g. crime and weather); and unique factors related to emerging transport and informal public transit. From these findings, we chart a future FLM research agenda under three thematic areas: (1) theory for enhancing the understanding of FLM travel mode choice; (2) data and modeling approaches for discussing the feasibility of using emerging data sources and providing modeling avenues to progress; (3) policy and practice for encouraging the use of sustainable travel for FLM.
{"title":"First and last mile travel mode choice: A systematic review of the empirical literature","authors":"Ying Lu , Anthony Kimpton , Carlo G. Prato , Neil Sipe , Jonathan Corcoran","doi":"10.1080/15568318.2023.2218285","DOIUrl":"10.1080/15568318.2023.2218285","url":null,"abstract":"<div><p>The first and last mile (FLM) problem is the lack of adequate connectivity between transit stations and trip origins/destinations. Consequently, this problem increases the probability of driving private cars directly to the destinations and reduces the patronage of public transit. For appealing the use of sustainable transport for accessing public transit, it is imperative to identify the factors influencing FLM travel mode choice. This review synthesizes the empirical FLM literature and identifies the key factors that influence FLM travel mode choice including conventional factors (e.g. socio-demographic characteristics and built environments); exogenous factors that can reduce the appeal of sustainable FLM transport (e.g. crime and weather); and unique factors related to emerging transport and informal public transit. From these findings, we chart a future FLM research agenda under three thematic areas: (1) theory for enhancing the understanding of FLM travel mode choice; (2) data and modeling approaches for discussing the feasibility of using emerging data sources and providing modeling avenues to progress; (3) policy and practice for encouraging the use of sustainable travel for FLM.</p></div>","PeriodicalId":47824,"journal":{"name":"International Journal of Sustainable Transportation","volume":"18 1","pages":"Pages 1-14"},"PeriodicalIF":3.9,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47093787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-02DOI: 10.1080/15568318.2023.2219629
Paulo Fernandes , Eloisa Macedo , Ricardo Tomás , Margarida C. Coelho
Despite the fuel use and emission benefits of hybrid electric vehicles (HEVs), few studies have characterized in detail emission patterns and driving volatility profiles from HEVs in different road types under real-world driving conditions. This article examined the relationship between hot-stabilized emissions, engine variables, internal combustion engine status, roadway characteristics, and vehicular jerk types. Data were collected from a Toyota HEV subcompact on a driving route over rural, urban, and highway roads in the Aveiro region (Portugal). Driving volatility was represented by six driving styles based on combinations of acceleration/deceleration and vehicular jerk. Clustering and Disjoint Principal Component Analysis (CDPCA) was applied to extract principal components and identify specific clusters among variables. Both route type and internal combustion engine (ICE) operating behavior showed to have an impact on the distribution of vehicular jerk types. The proposed CDPCA constrained to the road sector exhibited different shapes in the clusters of the jerk types between ICE operation status. This article can provide insights into emissions monitoring analysis of the new generation of HEVs about the description of volatile driving behaviors.
尽管混合动力电动汽车(HEV)在燃料使用和排放方面具有优势,但很少有研究详细描述混合动力电动汽车在实际驾驶条件下不同道路类型的排放模式和驾驶波动曲线。本文研究了热稳定排放、发动机变量、内燃机状态、道路特征和车辆颠簸类型之间的关系。数据来自一辆丰田 HEV 超小型汽车在葡萄牙阿威罗地区乡村、城市和高速公路上的行驶路线。驾驶波动性由基于加速/减速和车辆颠簸组合的六种驾驶风格表示。聚类和不相交主成分分析法(CDPCA)用于提取主成分并识别变量之间的特定聚类。结果表明,路线类型和内燃机(ICE)操作行为都会对车辆颠簸类型的分布产生影响。提议的 CDPCA 受限于道路部门,不同内燃机运行状态下的颠簸类型聚类呈现出不同的形状。这篇文章可以为新一代混合动力汽车的排放监测分析提供有关波动驾驶行为描述的见解。
{"title":"Hybrid electric vehicle data-driven insights on hot-stabilized exhaust emissions and driving volatility","authors":"Paulo Fernandes , Eloisa Macedo , Ricardo Tomás , Margarida C. Coelho","doi":"10.1080/15568318.2023.2219629","DOIUrl":"10.1080/15568318.2023.2219629","url":null,"abstract":"<div><p>Despite the fuel use and emission benefits of hybrid electric vehicles (HEVs), few studies have characterized in detail emission patterns and driving volatility profiles from HEVs in different road types under real-world driving conditions. This article examined the relationship between hot-stabilized emissions, engine variables, internal combustion engine status, roadway characteristics, and vehicular jerk types. Data were collected from a Toyota HEV subcompact on a driving route over rural, urban, and highway roads in the Aveiro region (Portugal). Driving volatility was represented by six driving styles based on combinations of acceleration/deceleration and vehicular jerk. Clustering and Disjoint Principal Component Analysis (CDPCA) was applied to extract principal components and identify specific clusters among variables. Both route type and internal combustion engine (ICE) operating behavior showed to have an impact on the distribution of vehicular jerk types. The proposed CDPCA constrained to the road sector exhibited different shapes in the clusters of the jerk types between ICE operation status. This article can provide insights into emissions monitoring analysis of the new generation of HEVs about the description of volatile driving behaviors.</p></div>","PeriodicalId":47824,"journal":{"name":"International Journal of Sustainable Transportation","volume":"18 1","pages":"Pages 84-102"},"PeriodicalIF":3.9,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47502839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-02DOI: 10.1080/15568318.2023.2180787
Achmad Wicaksono , Dimas B. E. Dharmowijoyo , Liza E. Tanjung , Yusak O. Susilo
Previous studies revealed that not all physical activities contribute to positive health results. Due to time limitations and energy deficits, involvement in physical activity might limit participation in another physical activity. Moreover, physical activities with different intensities, either vigorous, moderate or light, might have different patterns in deactivating or activating subsequent physical activities. This study examines the reciprocal effects of physical activities with different intensities and their effects on various health indicators. The reciprocal effect and its effect on health were overlooked in previous studies as the main research gap. The emerging digital activities raise how ride-sourcing and online activities encourage or discourage physical activities, in turn, health. This is the additional research gap. The 2019 Malang Greater Area dataset and Structural Equation Modeling are used in the analysis. The result of the study confirms that the reciprocal effects of physical activities are relevant to unravel the deactivation of other physical activities due to the commitments to take a specific physical activity. However, vigorous physical activities at home are still performed when people have commitments to do moderate physical activities at work and home, vigorous sports and cycling. The results also confirm that ride-sourcing significantly provides greater opportunities to perform physical activities than online activities. Ride-sourcing is also found to reduce the negative health effects of vigorous physical activities at work. Not all physical activities, however, correlate with positive health performances. Active travel can be suggested to maintain older people’s health, whereas vigorous sports are good for young adults.
{"title":"The reciprocal effects of physical activities and ride-sourcing on health","authors":"Achmad Wicaksono , Dimas B. E. Dharmowijoyo , Liza E. Tanjung , Yusak O. Susilo","doi":"10.1080/15568318.2023.2180787","DOIUrl":"10.1080/15568318.2023.2180787","url":null,"abstract":"<div><p>Previous studies revealed that not all physical activities contribute to positive health results. Due to time limitations and energy deficits, involvement in physical activity might limit participation in another physical activity. Moreover, physical activities with different intensities, either vigorous, moderate or light, might have different patterns in deactivating or activating subsequent physical activities. This study examines the reciprocal effects of physical activities with different intensities and their effects on various health indicators. The reciprocal effect and its effect on health were overlooked in previous studies as the main research gap. The emerging digital activities raise how ride-sourcing and online activities encourage or discourage physical activities, in turn, health. This is the additional research gap. The 2019 Malang Greater Area dataset and Structural Equation Modeling are used in the analysis. The result of the study confirms that the reciprocal effects of physical activities are relevant to unravel the deactivation of other physical activities due to the commitments to take a specific physical activity. However, vigorous physical activities at home are still performed when people have commitments to do moderate physical activities at work and home, vigorous sports and cycling. The results also confirm that ride-sourcing significantly provides greater opportunities to perform physical activities than online activities. Ride-sourcing is also found to reduce the negative health effects of vigorous physical activities at work. Not all physical activities, however, correlate with positive health performances. Active travel can be suggested to maintain older people’s health, whereas vigorous sports are good for young adults.</p></div>","PeriodicalId":47824,"journal":{"name":"International Journal of Sustainable Transportation","volume":"18 1","pages":"Pages 15-33"},"PeriodicalIF":3.9,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46925362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1080/15568318.2023.2192688
Jungkyu Jin , Jangik Jin
Severe traffic congestion leads to toxic levels of air pollution. We attempt to explore how traffic congestion affects air pollution, especially PM10 and PM2.5, by focusing on the city of Seoul, Korea, which is one of the largest cities in the world and is plagued by severe traffic congestion. We employ a fixed-effect panel model with various datasets, including air pollution, travel speed, and weather conditions. The findings show that traffic congestion adversely affects air quality by increasing the concentration of PM10 and PM2.5. In particular, the impact of traffic congestion on PM10 and PM2.5 was 1.2 times and 1.7 times greater during the COVID-19 period than during the non-COVID-19 period, respectively. In addition, an increase in one unit of RCI is associated with 0.4 increase in PM10 during the peak hours, but 6.7 increase in PM10 during the non-peak hour because of the increased traffic of trucks and motorcycles induced by increased online shopping. To mitigate air pollution, it is suggested that not only reducing vehicle use, but also minimizing traffic congestion is important.
{"title":"Traffic congestion and air pollution: Empirical evidence before/after COVID-19 in Seoul, Korea","authors":"Jungkyu Jin , Jangik Jin","doi":"10.1080/15568318.2023.2192688","DOIUrl":"10.1080/15568318.2023.2192688","url":null,"abstract":"<div><div>Severe traffic congestion leads to toxic levels of air pollution. We attempt to explore how traffic congestion affects air pollution, especially PM<sub>10</sub> and PM<sub>2.5</sub>, by focusing on the city of Seoul, Korea, which is one of the largest cities in the world and is plagued by severe traffic congestion. We employ a fixed-effect panel model with various datasets, including air pollution, travel speed, and weather conditions. The findings show that traffic congestion adversely affects air quality by increasing the concentration of PM<sub>10</sub> and PM<sub>2.5</sub>. In particular, the impact of traffic congestion on PM<sub>10</sub> and PM<sub>2.5</sub> was 1.2 times and 1.7 times greater during the COVID-19 period than during the non-COVID-19 period, respectively. In addition, an increase in one unit of RCI is associated with 0.4 <span><math><mi>μ</mi><mi>g</mi><mo>/</mo><msup><mrow><mi>m</mi></mrow><mrow><mn>3</mn></mrow></msup></math></span> increase in PM<sub>10</sub> during the peak hours, but 6.7 <span><math><mi>μ</mi><mi>g</mi><mo>/</mo><msup><mrow><mi>m</mi></mrow><mrow><mn>3</mn></mrow></msup></math></span> increase in PM<sub>10</sub> during the non-peak hour because of the increased traffic of trucks and motorcycles induced by increased online shopping. To mitigate air pollution, it is suggested that not only reducing vehicle use, but also minimizing traffic congestion is important.</div></div>","PeriodicalId":47824,"journal":{"name":"International Journal of Sustainable Transportation","volume":"17 12","pages":"Pages 1356-1369"},"PeriodicalIF":3.1,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42202615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1080/15568318.2023.2179443
Jose C. Cua , Li Wan
Road transport has been one of the largest contributors to global carbon emissions. In the Philippines, one such measure is the introduction of a relatively new public transport mode called the “Premium Point-to-Point (P2P) Bus Service”, which features shorter travel time and lower emission intensity than conventional buses. In light of the significant deficiency in transport emission studies for Philippine cities, this paper presents a scenario-based method for quantifying the potential emission reduction benefits of the P2P bus in Metropolitan Manila. Based on a pro rata mode shift assumption, it is estimated that a 1% mode shift of passengers from existing motor modes to P2P buses would lead to 0.64% reduction of total emissions over selected travel routes in Metro Manila. The analytical method addresses the acute emission data scarcity in the Philippines, and provides early evidence on the aggregate environmental benefits of P2P buses. Extensive sensitivity tests are conducted to verify the simulation results and identify key determinants of emission reduction. The tests confirm the robustness of research findings and further uncover the great potential of increasing vehicle occupancy levels to mitigate vehicle emissions in Metro Manila. Policy implications for enhancing the environmental benefits of P2P buses are provided.
{"title":"Modeling emission reduction benefits of the premium point-to-point bus service in Metropolitan Manila, Philippines – a scenario analysis","authors":"Jose C. Cua , Li Wan","doi":"10.1080/15568318.2023.2179443","DOIUrl":"10.1080/15568318.2023.2179443","url":null,"abstract":"<div><div>Road transport has been one of the largest contributors to global carbon emissions. In the Philippines, one such measure is the introduction of a relatively new public transport mode called the “Premium Point-to-Point (P2P) Bus Service”, which features shorter travel time and lower emission intensity than conventional buses. In light of the significant deficiency in transport emission studies for Philippine cities, this paper presents a scenario-based method for quantifying the potential emission reduction benefits of the P2P bus in Metropolitan Manila. Based on a pro rata mode shift assumption, it is estimated that a 1% mode shift of passengers from existing motor modes to P2P buses would lead to 0.64% reduction of total emissions over selected travel routes in Metro Manila. The analytical method addresses the acute emission data scarcity in the Philippines, and provides early evidence on the aggregate environmental benefits of P2P buses. Extensive sensitivity tests are conducted to verify the simulation results and identify key determinants of emission reduction. The tests confirm the robustness of research findings and further uncover the great potential of increasing vehicle occupancy levels to mitigate vehicle emissions in Metro Manila. Policy implications for enhancing the environmental benefits of P2P buses are provided.</div></div>","PeriodicalId":47824,"journal":{"name":"International Journal of Sustainable Transportation","volume":"17 12","pages":"Pages 1302-1314"},"PeriodicalIF":3.1,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44744118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1080/15568318.2023.2166438
Juliette Fournier , Mathilde Van Liefferinge , Léa Ravensbergen , James DeWeese , Ahmed El-Geneidy
Concerns about bicycle theft can act as a barrier to cycling uptake. A promising solution to prevent theft is secured bicycle parking, which offers more protection than regular on-street bicycle racks through secured access, or the presence of an attendant. As cities begin to invest in this infrastructure, practitioners must make difficult decisions about which types of facilities to install, where to install them, and how much to charge for their use. Therefore, this study draws on a large-scale cycling survey (n = 1806) distributed in Montréal, Canada to explore how secured bicycle parking needs vary across different cyclist typologies. To do so, factor-cluster analysis was conducted to generate cyclist typologies. Then the behaviors and secured bicycle parking needs of these different cyclists were established. Four distinct cyclist types emerged: Leisure Cyclists, Summer Cyclists, Occasional Cyclists, and Dedicated Cyclists. Dedicated cyclists were most interested in secured bicycle parking, while occasional cyclists were the least. Leisure cyclists, on the other hand, are willing to pay and walk the most for secured bicycle parking. Across typologies, the top three most important characteristics of secured bicycle parking are (1) being free or low cost, (2) having secured access, and (3) being close to their destination. Respondents are most interested in secured bicycle parking near their work and metro stations. The results from this study can inform practitioners and researchers about the secured bicycle parking needs of different types of cyclists, and in doing so help in the planning for such facilities.
{"title":"Evaluating the need for secured bicycle parking across cyclist typologies","authors":"Juliette Fournier , Mathilde Van Liefferinge , Léa Ravensbergen , James DeWeese , Ahmed El-Geneidy","doi":"10.1080/15568318.2023.2166438","DOIUrl":"10.1080/15568318.2023.2166438","url":null,"abstract":"<div><div>Concerns about bicycle theft can act as a barrier to cycling uptake. A promising solution to prevent theft is secured bicycle parking, which offers more protection than regular on-street bicycle racks through secured access, or the presence of an attendant. As cities begin to invest in this infrastructure, practitioners must make difficult decisions about which types of facilities to install, where to install them, and how much to charge for their use. Therefore, this study draws on a large-scale cycling survey (n = 1806) distributed in Montréal, Canada to explore how secured bicycle parking needs vary across different cyclist typologies. To do so, factor-cluster analysis was conducted to generate cyclist typologies. Then the behaviors and secured bicycle parking needs of these different cyclists were established. Four distinct cyclist types emerged: Leisure Cyclists, Summer Cyclists, Occasional Cyclists, and Dedicated Cyclists. Dedicated cyclists were most interested in secured bicycle parking, while occasional cyclists were the least. Leisure cyclists, on the other hand, are willing to pay and walk the most for secured bicycle parking. Across typologies, the top three most important characteristics of secured bicycle parking are (1) being free or low cost, (2) having secured access, and (3) being close to their destination. Respondents are most interested in secured bicycle parking near their work and metro stations. The results from this study can inform practitioners and researchers about the secured bicycle parking needs of different types of cyclists, and in doing so help in the planning for such facilities.</div></div>","PeriodicalId":47824,"journal":{"name":"International Journal of Sustainable Transportation","volume":"17 12","pages":"Pages 1278-1286"},"PeriodicalIF":3.1,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42026873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Excess commute (EC) refers to the sub-optimal allocation of workers to jobs in an urban region in terms of minimal commute distances. This article investigated EC for the Munich metropolitan area using a microscopic agent-based modeling suite. We first considered the optimization strategy, comparing the traditional zone-based transportation problem to a microscopic routine. Zone-based optimization is computationally efficient, but it underestimates EC due to spatial biases, even when the zone system is highly disaggregate. We then applied the optimized job-worker assignment to a microscopic travel demand model, assigning workers to jobs of the same job sector at a shorter distance from their home, accounting for multi-worker households. With shorter commutes, there was a substantial shift toward active modes. However, we only observed moderate impacts on total travel demand, with the overall effect dampened due to compensatory behavior between mandatory and discretionary travel. Finally, the outputs from the demand model were used by a microscopic assignment model to calculate externalities attributable to EC. Because of the complexity of travel demand, we conclude that the EC indicator alone would overestimate the benefits of policies targeting jobs-housing balance.
{"title":"The perfect match? Assessment of excess commute and transport externalities using an agent-based transport model","authors":"Nico Kuehnel , Qin Zhang , Corin Staves , Rolf Moeckel","doi":"10.1080/15568318.2023.2181116","DOIUrl":"10.1080/15568318.2023.2181116","url":null,"abstract":"<div><div>Excess commute (EC) refers to the sub-optimal allocation of workers to jobs in an urban region in terms of minimal commute distances. This article investigated EC for the Munich metropolitan area using a microscopic agent-based modeling suite. We first considered the optimization strategy, comparing the traditional zone-based transportation problem to a microscopic routine. Zone-based optimization is computationally efficient, but it underestimates EC due to spatial biases, even when the zone system is highly disaggregate. We then applied the optimized job-worker assignment to a microscopic travel demand model, assigning workers to jobs of the same job sector at a shorter distance from their home, accounting for multi-worker households. With shorter commutes, there was a substantial shift toward active modes. However, we only observed moderate impacts on total travel demand, with the overall effect dampened due to compensatory behavior between mandatory and discretionary travel. Finally, the outputs from the demand model were used by a microscopic assignment model to calculate externalities attributable to EC. Because of the complexity of travel demand, we conclude that the EC indicator alone would overestimate the benefits of policies targeting jobs-housing balance.</div></div>","PeriodicalId":47824,"journal":{"name":"International Journal of Sustainable Transportation","volume":"17 12","pages":"Pages 1324-1336"},"PeriodicalIF":3.1,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49394251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1080/15568318.2023.2171321
Khalifa AL-Dosari , Noora Fetais , Murat Kucukvar
Green cybersecurity is the emerging trend in the new era and this green cybersecurity technology minimizes the negative effects of IT operations and implements a green sustainable environment. Therefore, the study conceptually draws the concept of green cybersecurity by applying the theory of reasoned action (TRA) assumptions that logically support green information technology acceptance. Using a convenient sampling, the data were collected from Qatar transport industries, particularly the IT experts and managers, to get responses on the implementation of green cybersecurity and sustainability of 5 transport companies in Doha, Qatar. Using Smart PLS-SEM, the study employed the SEM technique to test the proposed hypotheses. The results reported that green cybersecurity’s control/position, integrity, and authenticity significantly and positively influenced TBL sustainability, but confidentiality, availability, and utility do not. The implementation of industry 4.0 makes them accessible and more effective to ensure TBL sustainable development in the transport industries in Qatar. Applying green cybersecurity in this setting will improve services in transportation sector. A green cybersecurity platform will make it a point to systematically search for and promote innovations made possible by smart green technologies to avoid carbon-emission vehicles. Through the efficient and cutting-edge green, cybersecurity will be Qatar’s transportation sector’s primary responsibility to contribute to Qatar’s sustainable development. In order to accomplish this goal, the regulator must create and implement it. In addition, it emphasizes the importance of adopting green cybersecurity to confront the difficulties facing city transportation all over Qatar as a foundational component of achieving long-term sustainable development.
{"title":"A shift to green cybersecurity sustainability development: Using triple bottom-line sustainability assessment in Qatar transportation sector","authors":"Khalifa AL-Dosari , Noora Fetais , Murat Kucukvar","doi":"10.1080/15568318.2023.2171321","DOIUrl":"10.1080/15568318.2023.2171321","url":null,"abstract":"<div><div>Green cybersecurity is the emerging trend in the new era and this green cybersecurity technology minimizes the negative effects of IT operations and implements a green sustainable environment. Therefore, the study conceptually draws the concept of green cybersecurity by applying the theory of reasoned action (TRA) assumptions that logically support green information technology acceptance. Using a convenient sampling, the data were collected from Qatar transport industries, particularly the IT experts and managers, to get responses on the implementation of green cybersecurity and sustainability of 5 transport companies in Doha, Qatar. Using Smart PLS-SEM, the study employed the SEM technique to test the proposed hypotheses. The results reported that green cybersecurity’s control/position, integrity, and authenticity significantly and positively influenced TBL sustainability, but confidentiality, availability, and utility do not. The implementation of industry 4.0 makes them accessible and more effective to ensure TBL sustainable development in the transport industries in Qatar. Applying green cybersecurity in this setting will improve services in transportation sector. A green cybersecurity platform will make it a point to systematically search for and promote innovations made possible by smart green technologies to avoid carbon-emission vehicles. Through the efficient and cutting-edge green, cybersecurity will be Qatar’s transportation sector’s primary responsibility to contribute to Qatar’s sustainable development. In order to accomplish this goal, the regulator must create and implement it. In addition, it emphasizes the importance of adopting green cybersecurity to confront the difficulties facing city transportation all over Qatar as a foundational component of achieving long-term sustainable development.</div></div>","PeriodicalId":47824,"journal":{"name":"International Journal of Sustainable Transportation","volume":"17 12","pages":"Pages 1287-1301"},"PeriodicalIF":3.1,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48117414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1080/15568318.2023.2179444
Kwangyul Choi , Han J. Park , Greg P. Griffin
Previous literature has shown mixed findings on whether bike or e-scooter share programs, collectively called shared micromobility, play a role in reducing vehicle travel. In this study, we focused on two types of shared micromobility (i.e., bikes—both regular and e-bikes—and e-scooters). We examined their impact on vehicle travel in urbanized areas in the United States between 2012 and 2019. Employing the difference-in-differences (DID) approach, we quantified the collective effect of shared micromobility on daily vehicle miles of travel (VMT) per capita at the urbanized area level. Our findings suggest that bike shares could reduce VMT while e-scooter share alone might not have a significant impact on lowering vehicle travel. Our results also indicate that there may be a synergistic effect of bike and scooter shares in VMT reduction when both types of shared micromobility are available in an urbanized area. Our findings also demonstrate regional variations in the impact of shared micromobility on vehicle travel.
{"title":"Can shared micromobility replace auto travel? Evidence from the U.S. urbanized areas between 2012 and 2019","authors":"Kwangyul Choi , Han J. Park , Greg P. Griffin","doi":"10.1080/15568318.2023.2179444","DOIUrl":"10.1080/15568318.2023.2179444","url":null,"abstract":"<div><div>Previous literature has shown mixed findings on whether bike or e-scooter share programs, collectively called shared micromobility, play a role in reducing vehicle travel. In this study, we focused on two types of shared micromobility (i.e., bikes—both regular and e-bikes—and e-scooters). We examined their impact on vehicle travel in urbanized areas in the United States between 2012 and 2019. Employing the difference-in-differences (DID) approach, we quantified the collective effect of shared micromobility on daily vehicle miles of travel (VMT) per capita at the urbanized area level. Our findings suggest that bike shares could reduce VMT while e-scooter share alone might not have a significant impact on lowering vehicle travel. Our results also indicate that there may be a synergistic effect of bike and scooter shares in VMT reduction when both types of shared micromobility are available in an urbanized area. Our findings also demonstrate regional variations in the impact of shared micromobility on vehicle travel.</div></div>","PeriodicalId":47824,"journal":{"name":"International Journal of Sustainable Transportation","volume":"17 12","pages":"Pages 1315-1323"},"PeriodicalIF":3.1,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43084757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}