Latin American Transport Studies最新文献_第5页

An overview of the impacts of ridesourcing in developing countries: Main topics and questions for future research 概述外包潮对发展中国家的影响：未来研究的主要议题和问题

Latin American Transport Studies Pub Date : 2024-12-01 Epub Date: 2024-05-09 DOI: 10.1016/j.latran.2024.100017

Douglas Lima Martins , Leonardo Herszon Meira , Carolina Silva Costa , Cira Souza Pitombo

{"title":"An overview of the impacts of ridesourcing in developing countries: Main topics and questions for future research","authors":"Douglas Lima Martins , Leonardo Herszon Meira , Carolina Silva Costa , Cira Souza Pitombo","doi":"10.1016/j.latran.2024.100017","DOIUrl":"https://doi.org/10.1016/j.latran.2024.100017","url":null,"abstract":"<div><p>Despite the popularity of ridesourcing service usage across the world, there are some research gaps, especially regarding emerging economies countries. Thus, the literature on ridesourcing in developing countries is still scarce and many issues are still unknown. In this paper, a literature review is conducted on the impacts of ridesourcing in developing countries, summarizing the main topics of discussion, and proposing research questions for future studies. The main impacts discussed are related to: (1) travel behavior, (2) other travel modes, (3) traffic externalities, (4) ridesplitting, (5) labor relations, and (6) COVID-19 implications. The main findings are that ridesourcing has significant impacts on urban traffic, the environment, and social welfare. However, these findings are from few countries, which leaves a huge number of developing countries out of the analysis. It would be helpful for future studies to reflect on how similar (or different) other countries are from those included in this study. Furthermore, there are few studies that include both developed and developing countries in the same analysis and questions such as (or whether) a developing country can extrapolate ridesourcing use, patterns, or expectations based on findings from a developed country are still unknown.</p></div>","PeriodicalId":100868,"journal":{"name":"Latin American Transport Studies","volume":"2 ","pages":"Article 100017"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S295002492400009X/pdfft?md5=8557333fe5396831422adc191f723f66&pid=1-s2.0-S295002492400009X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140901399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transport challenges in Brazil and research opportunities 巴西的运输挑战和研究机会

Latin American Transport Studies Pub Date : 2024-12-01 Epub Date: 2024-04-27 DOI: 10.1016/j.latran.2024.100015

Cira Souza Pitombo , Samuel de França Marques , Leise Kelli Oliveira

引用次数: 0

City-wide cycling network extension and bicycle ridership in São Paulo: A causal analysis 圣保罗全市自行车网络的扩展与自行车骑行率：因果分析

Latin American Transport Studies Pub Date : 2024-12-01 Epub Date: 2024-09-07 DOI: 10.1016/j.latran.2024.100021

Francisco Edson Macedo Filho , Camila Cunquero

{"title":"City-wide cycling network extension and bicycle ridership in São Paulo: A causal analysis","authors":"Francisco Edson Macedo Filho , Camila Cunquero","doi":"10.1016/j.latran.2024.100021","DOIUrl":"10.1016/j.latran.2024.100021","url":null,"abstract":"<div><p>Over the past 15 years, São Paulo, a megacity in Southeastern Brazil, has tackled its enduring mobility challenges by constructing over 500 km of bike routes and supporting various cycling initiatives, including recreational cycling programs, mobility strategies and bikeshare. Despite the generally positive impacts of these initiatives, the absence of robust causal evidence on their benefits can pose serious challenges for future investments in light of the existing social dynamic favoring the use of automobiles. Driven by the need to reduce motorized transport in Brazilian cities, we investigate the causal effects of bicycle routes on ridership between 2007 and 2017, focusing on travellers highly exposed to bike routes developed between 2008 and 2015. Using Difference-in-Differences models alongside Household Travel Surveys conducted before and after the interventions, we observed a modest but positive increase in cycling mode choice probability, ranging from 0.60 % to 1.37 %, among the highly exposed treatment groups. Our findings provide policymakers with valuable insights to support future cycling infrastructure planning and investment, demonstrating their potential net benefits even in car-dependent urban areas. By integrating these results into existing economic appraisal tools, policymakers can further assess additional benefits related to physical activity, health, and emissions reduction.</p></div>","PeriodicalId":100868,"journal":{"name":"Latin American Transport Studies","volume":"2 ","pages":"Article 100021"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950024924000131/pdfft?md5=dfbb022c31da06cc409f94041e536b21&pid=1-s2.0-S2950024924000131-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142150242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Using continuous traffic counts extracted from smartphone data to evaluate traffic reductions during COVID-19 pandemic in North Carolina 利用从智能手机数据中提取的连续交通量来评估北卡罗来纳州COVID-19大流行期间的交通量减少情况

Latin American Transport Studies Pub Date : 2023-12-01 Epub Date: 2023-11-16 DOI: 10.1016/j.latran.2023.100005

Boris Goenaga , B. Shane Underwood , Cassie Castorena , Victor Cantillo , Julian Arellana

{"title":"Using continuous traffic counts extracted from smartphone data to evaluate traffic reductions during COVID-19 pandemic in North Carolina","authors":"Boris Goenaga , B. Shane Underwood , Cassie Castorena , Victor Cantillo , Julian Arellana","doi":"10.1016/j.latran.2023.100005","DOIUrl":"https://doi.org/10.1016/j.latran.2023.100005","url":null,"abstract":"<div><p>Lockdowns to deal with the COVID-19 outbreak affected peoples' life in different dimensions. In particular, we are interested in evaluating the effects on traffic flows. For this purpose, it is necessary to accurately estimate the temporal variation of traffic flows during the pandemic period. New data collection techniques, including information from smartphones, can be used to collect this information at multiple locations of a road network. A key step in using this new data collection is the validation against more traditional measures to ensure consistency in traffic volume interpretation. This paper presents a case study whose main goals are to compare the smartphone-based traffic count predictions from the StreetLight data source against the values reported by traditional methods of traffic quantification and estimate reductions and recovery rates on traffic volumes in North Carolina during the COVID-19 pandemic. The results show that the largest reductions in traffic flows occurred mainly during the first three months of lockdown.</p></div>","PeriodicalId":100868,"journal":{"name":"Latin American Transport Studies","volume":"1 ","pages":"Article 100005"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950024923000057/pdfft?md5=f7f3beebb0a8e580075dc22903f5509a&pid=1-s2.0-S2950024923000057-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134843561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the Transport Landscape in Belo Horizonte, Brazil 探索巴西贝洛奥里藏特的交通景观

Latin American Transport Studies Pub Date : 2023-12-01 Epub Date: 2023-11-10 DOI: 10.1016/j.latran.2023.100001

Leise Kelli de Oliveira, Rodrigo Affonso Albuquerque Nobrega, Pedro de Souza Coelho

引用次数: 0

Challenges in promoting bike-bus integration in developing countries: Case study of Fortaleza, Brazil 在发展中国家促进自行车-公共汽车一体化的挑战:以巴西福塔莱萨为例

Latin American Transport Studies Pub Date : 2023-12-01 Epub Date: 2023-11-16 DOI: 10.1016/j.latran.2023.100004

Matheus Fontenelle Siqueira, André Soares Lopes, Taís Barreto Costa, Carlos Felipe Grangeiro Loureiro

{"title":"Challenges in promoting bike-bus integration in developing countries: Case study of Fortaleza, Brazil","authors":"Matheus Fontenelle Siqueira, André Soares Lopes, Taís Barreto Costa, Carlos Felipe Grangeiro Loureiro","doi":"10.1016/j.latran.2023.100004","DOIUrl":"https://doi.org/10.1016/j.latran.2023.100004","url":null,"abstract":"<div><p>Cycling to access or egress from public transport (PT) systems potentially improves accessibility to opportunities for PT-dependent populations, which can reduce socio-spatial inequalities. While developing countries may benefit from the affordability and sustainability of bicycle-transit integration, current scientific research on the topic focuses mostly on metropolises in the industrialized world. Furthermore, Global South cities that invest in such systems see their population resistant to adopting the solutions well received in the North. This paper adapts a bicycle-transit conceptual model to the reality of Latin American metropolises to serve as a characterization tool to empirically investigate the barriers and challenges inhibiting large developing cities from benefiting from it. Fortaleza, a mid-sized Brazilian metropolis with recent significant investments in bicycle-transit integration, serves as a case study. All analyses are based on surveys with bike-sharing and bike-parking facilities users, associated with data from bus-system smartcard validation. The analyses aim at both supply and demand conditions to evaluate their policy implications. The challenges faced by North and Global South cities regarding bicycle-transit integration seem to be similar in terms of infrastructural necessities and outcomes (travel speeds, road safety, and comfort); however, they are significantly different in terms of hindering costs and public safety, which affect users’ behavior. Discussions revolve around how to attract new users while keeping costs at bay, as well as how public safety plays a key role in the Latin American context.</p></div>","PeriodicalId":100868,"journal":{"name":"Latin American Transport Studies","volume":"1 ","pages":"Article 100004"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950024923000045/pdfft?md5=18f561392092eb7fb3b462734fb4dbe4&pid=1-s2.0-S2950024923000045-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134688285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial matrices for short-term traffic forecasting based on time series 基于时间序列的短期交通预测空间矩阵

Latin American Transport Studies Pub Date : 2023-12-01 Epub Date: 2023-11-17 DOI: 10.1016/j.latran.2023.100007

Olímpio Mendes de Barros , Claudio Luiz Marte , Cassiano Augusto Isler , Leopoldo Rideki Yoshioka , Edvaldo Simões da Fonseca Junior

{"title":"Spatial matrices for short-term traffic forecasting based on time series","authors":"Olímpio Mendes de Barros , Claudio Luiz Marte , Cassiano Augusto Isler , Leopoldo Rideki Yoshioka , Edvaldo Simões da Fonseca Junior","doi":"10.1016/j.latran.2023.100007","DOIUrl":"https://doi.org/10.1016/j.latran.2023.100007","url":null,"abstract":"<div><p>Intelligent traffic systems require data and recent studies on Short-Term Traffic Forecasting (STTF) have incorporated the Spatiotemporal (ST) aspect to improve predictions. They consider road network characteristics by incorporating the impact of traffic at a given location and on its neighbouring locations. Spatial relationship weight matrices, or simply spatial matrices, facilitate direct incorporation by considering the correlation factors between various points. The Space-Time Autoregressive Integrated Moving Average Model (STARIMA) enables the application and comparison of various types of spatial matrices in ST-STTF. In this paper, we compare three types of neighbourhoods and eight types of weights to assess their impact in ST-STTF for different infrastructure and traffic characteristics. Several experiments in the road network of the city of São Paulo, Brazil, revealed that asymmetric matrices that consider the upstream and downstream traffic flow present higher accuracy than the commonly used symmetric matrices. The use of asymmetric matrices improved accuracy in 77.3% of scenarios, particularly when employing an asymmetric weight based on adjacent section speeds and travel time. Moreover, grouped matrices (GM) required less computational time to estimate the models when compared with contiguity (CN) and time lag (TL) matrices. Therefore, our results show the impacts of applying several spatial structures into short-term traffic prediction models and provide practical prediction methods for an urban network based on real traffic data, with a case study in one of the largest cities in Latin America.</p></div>","PeriodicalId":100868,"journal":{"name":"Latin American Transport Studies","volume":"1 ","pages":"Article 100007"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950024923000070/pdfft?md5=94095815e203cfe802ab8c8ef71b5389&pid=1-s2.0-S2950024923000070-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134688286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Risks and opportunities for the sustainability of ridesourcing services in Latin-American small and medium-sized cities: Analyzing perceptions of stakeholders of mobility 拉丁美洲中小城市拼车服务可持续性的风险与机遇:分析出行利益相关者的看法

Latin American Transport Studies Pub Date : 2023-12-01 Epub Date: 2023-11-16 DOI: 10.1016/j.latran.2023.100003

Brenda Medeiros Pereira , Alejandro Ruiz-Padillo

{"title":"Risks and opportunities for the sustainability of ridesourcing services in Latin-American small and medium-sized cities: Analyzing perceptions of stakeholders of mobility","authors":"Brenda Medeiros Pereira , Alejandro Ruiz-Padillo","doi":"10.1016/j.latran.2023.100003","DOIUrl":"https://doi.org/10.1016/j.latran.2023.100003","url":null,"abstract":"<div><p>Ridesourcing services are rapidly expanding in cities around the world. Their implementation in the absence of prior planning of the operation, or without clear rules for management and inspection, can generate negative impacts on urban mobility, as well as opportunities that are not taken advantage of in the best way. However, there are few studies that have measured the impacts of these services on mobility in cities. The ones that exist have targeted large cities in developed countries. This work aims to measure the risks and opportunities created by the insertion of application-based transport in Latin-American small-sized cities. The use of a hybrid qualitative-quantitative analysis methodology is proposed, with uncertainty modeling supported by fuzzy logic, which was applied in a case study of Cachoeira do Sul, a city located in Southern Brazil. The results revealed a positive perception of the use of ridesourcing services, with opportunities being rated higher than risks, especially related to new options for mobility services. The risks associated with the planning, management, and operation of coordinated urban mobility stood out, in addition to those concerning the competition of ridesourcing services with public transport and taxis. The results obtained here should assist in the formulation of appropriate public policies for ridesourcing services in small Latin-American cities.</p></div>","PeriodicalId":100868,"journal":{"name":"Latin American Transport Studies","volume":"1 ","pages":"Article 100003"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950024923000033/pdfft?md5=ca02795077bee9328105e94e21a91d3a&pid=1-s2.0-S2950024923000033-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134688284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Equity in e-commerce accessibility: Gaps and opportunities for a research agenda 电子商务可访问性的公平性:研究议程的差距和机会

Latin American Transport Studies Pub Date : 2023-12-01 Epub Date: 2023-11-10 DOI: 10.1016/j.latran.2023.100002

Luísa Tavares Muzzi de Sousa , Leise Kelli de Oliveira , Lilian dos Santos Fontes Pereira Bracarense

引用次数: 0

Potential market of freight demand management 货运需求管理的潜在市场

Latin American Transport Studies Pub Date : 2023-12-01 Epub Date: 2023-11-16 DOI: 10.1016/j.latran.2023.100006

José Holguín-Veras , Felipe Aros-Vera , Oriana Calderón

{"title":"Potential market of freight demand management","authors":"José Holguín-Veras , Felipe Aros-Vera , Oriana Calderón","doi":"10.1016/j.latran.2023.100006","DOIUrl":"https://doi.org/10.1016/j.latran.2023.100006","url":null,"abstract":"<div><p>The paper's main objective is to quantify the potential market for Freight Demand Management (FDM) in metropolitan areas. To this effect, the authors define FDM and describe the various initiatives that could be undertaken to reduce the externalities produced by freight traffic. These changes involve altering the demand patterns enacted by the receivers of supplies. The literature on freight behavior research is reviewed to identify the industry segments most inclined to participate in FDM. Having identified the industry sectors of interest for FDM programs, the authors use freight trip generation models and publicly available data to quantify the freight trip generation for the industry sectors deemed to be the ideal target of FDM initiatives. These estimates are obtained for five large metropolitan statistical areas and a sample of representative medium to small metropolitan statistical areas of different sizes in the US. The paper concludes with a discussion of policy implications and chief results.</p></div>","PeriodicalId":100868,"journal":{"name":"Latin American Transport Studies","volume":"1 ","pages":"Article 100006"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950024923000069/pdfft?md5=8d3da37028572c8df91f107c30470b52&pid=1-s2.0-S2950024923000069-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134688283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0