“…Commercial trucks are not allowed to circulate between Monday and Friday from 5:00 a.m. to 9:00 p.m. and on Saturdays from 10:00 a.m. to 2:00 p.m. The only exception is if they have special authorization from the municipal authorities (e.g., permit for ''Urban Cargo Vehicle -Small Vehicle'') (18). Inefficiency is typical in this type of delivery, as freight vehicles are used for deliveries to small retailers, and generally have a lower vehicle loading factor (28).…”
Section: Effects Of Truck Circulation Restriction On Accessibility Andmentioning
confidence: 99%
“…Urban logistical operations often play a secondary role in city planning priorities (15) and the authorities do not consider this problem as a whole (17). Truck circulation restrictions, for instance, zone circulation areas (residential or structural path) and licenseplate-based truck access (11), are applied in limited downtown areas to control vehicle flow, such as heavy trucks (18). These restrictions lead to a need for more, smaller trucks to be hired to meet demand, thus increasing congestion (12).…”
The number of goods deliveries made in the city of São Paulo has been rising every year. This growth is caused by new consumption habits, as people increasingly opt for online shopping, having goods delivered to their homes or neighborhood markets. However, these deliveries have become increasingly complex because of several issues found in the last-mile distribution of goods. This research sheds light on the interactions among issues related to truck circulation restrictions, receiver characteristics, accessibility and delivery planning, urban road infrastructure, driver behavior, and safety and risk problems that hamper last-mile delivery distribution. Data were collected (via a questionnaire) from drivers who work in the urban distribution of non-durable consumer goods in the city of São Paulo. From the data, structural equation modeling is proposed to evaluate these interactions. Empirical results demonstrate that “lack of accessibility and delivery planning” and “poor urban road infrastructure” are the elements that have the most impact on the “safety and risk problems in urban freight distribution” from the driver’s point of view. These results also contribute to mapping the main problems encountered in the last-mile delivery distribution in the city of São Paulo.
“…Commercial trucks are not allowed to circulate between Monday and Friday from 5:00 a.m. to 9:00 p.m. and on Saturdays from 10:00 a.m. to 2:00 p.m. The only exception is if they have special authorization from the municipal authorities (e.g., permit for ''Urban Cargo Vehicle -Small Vehicle'') (18). Inefficiency is typical in this type of delivery, as freight vehicles are used for deliveries to small retailers, and generally have a lower vehicle loading factor (28).…”
Section: Effects Of Truck Circulation Restriction On Accessibility Andmentioning
confidence: 99%
“…Urban logistical operations often play a secondary role in city planning priorities (15) and the authorities do not consider this problem as a whole (17). Truck circulation restrictions, for instance, zone circulation areas (residential or structural path) and licenseplate-based truck access (11), are applied in limited downtown areas to control vehicle flow, such as heavy trucks (18). These restrictions lead to a need for more, smaller trucks to be hired to meet demand, thus increasing congestion (12).…”
The number of goods deliveries made in the city of São Paulo has been rising every year. This growth is caused by new consumption habits, as people increasingly opt for online shopping, having goods delivered to their homes or neighborhood markets. However, these deliveries have become increasingly complex because of several issues found in the last-mile distribution of goods. This research sheds light on the interactions among issues related to truck circulation restrictions, receiver characteristics, accessibility and delivery planning, urban road infrastructure, driver behavior, and safety and risk problems that hamper last-mile delivery distribution. Data were collected (via a questionnaire) from drivers who work in the urban distribution of non-durable consumer goods in the city of São Paulo. From the data, structural equation modeling is proposed to evaluate these interactions. Empirical results demonstrate that “lack of accessibility and delivery planning” and “poor urban road infrastructure” are the elements that have the most impact on the “safety and risk problems in urban freight distribution” from the driver’s point of view. These results also contribute to mapping the main problems encountered in the last-mile delivery distribution in the city of São Paulo.
A Análise de Componentes Principais (ACP) é uma ferramenta padrão em análise multivariada aplicada para examinar dados multidimensionais e amplamente utilizada em diferentes áreas do conhecimento. Destaca-se devido ao aumento no tamanho das bases de dados e surgimento do Big Data. Seu ensino em cursos de engenharia se torna importante, principalmente quando aliado ao uso de softwares livres e gratuitos, como o “RStudio”. Este artigo tem o objetivo de apresentar as experiências produzidas a partir de um estudo de caso realizado com estudantes do curso de engenharia, onde o exemplo utilizado para a aplicação da ACP são tabelas relativas às mortes decorrentes de acidentes de trânsito, em diferentes países do mundo. O estudo evidenciou a empregabilidade da ferramenta ACP em aulas ministradas na graduação em engenharia com o intuito de mostrar, de maneira simplificada, como iniciar uma análise com múltiplas variáveis utilizando o “RStudio”, software de fácil acesso aos alunos, caracterizado como um ambiente computacional e linguagem de programação para análise estatística e visualização gráfica de dados. Demonstrou-se a utilidade da ACP como ferramenta introdutória para análises multivariadas no ensino em cursos de engenharia e, por meio de sua utilização os estudantes puderam observar padrões e correlações existentes no estudo de caso. Pode-se concluir que a metodologia adotada, que consistiu de aula expositiva seguida de prática guiada por vídeos tutoriais, atingiu seu objetivo, pois os alunos puderam replicar seu aprendizado de forma autônoma e independente, sem a necessidade de dispender recursos financeiros próprios ou da universidade.
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