Structural Fire as an Urban Parasite: Population Density Dependence of Structural Fire in New York City, and its Implications

1984 ◽  
Vol 16 (2) ◽  
pp. 249-260 ◽  
Author(s):  
D N Wallace ◽  
R Wallace

In further exploration of structural fire as an urban parasite, the influence of areal population density and housing overcrowding on incidence and average size of structural fires is analyzed. Because the more people per square mile and per room the greater the incidence and size of the structural fires, the destruction of housing by fire and fire-related building abandonment creates fertile ground for even greater fire damage due to the crowding of the refugees into the remaining housing stock. The vicious circle of housing overcrowding and fire holds serious implications with respect to other density dependent factors, such as public health, the public transportation system, and sanitation. Parasitology continues to provide insight into the mechanisms of the behavior of structural fire and its impacts.

2021 ◽  
Vol 13 (2) ◽  
pp. 555
Author(s):  
Zhicheng Weng ◽  
Pinliang Luo

Online car-hailing services are becoming a key component of the public transportation system, despite there being some certain risks, especially default risk. Turning to the evolutionary game method, this research constructed an evolutionary game model of online car-hailing platform, and then analyzed the equilibrium state of three scenarios (i.e., no supervision, internal supervision of platform enterprises, and external supervision of regulators), followed by carrying out a simulation. The results showed that to realize the evolution stability strategies (ESS) of default risk control, a strong credit constraint or the establishment of a coordinated supervision mode with appropriate intensity are needed. On this basis, this research puts forward the coordinated “platform enterprise + regulator” supervision mode, as well as the following four specific strategies: Promoting the construction of a credit system, strengthening the construction of laws and regulations, establishing a service process control mechanism, and introducing innovative regulatory means.


Elements ◽  
2015 ◽  
Vol 11 (2) ◽  
Author(s):  
Allison Schneider

It is rare that municipalities have the opportunity to remake a significant portion of key infrastructure, and to do so without significant cost burden on the citizens. The advent of Uber and similar entities that have moved the ride-sharing concept into the 21st century provide that unique chance in the public transportation arena. However, cities such as Los Angeles, New York, and Chicago are responding to Uber as a threat to established taxi-livery services and their accompanying regulatory structures rather than an opportunity for modernization. in order to capitalize on this transformative moment, cities and governments must rethink and address decades-old rules, regulations, and entrenched interests. The benefits to and acceptance by the public that surround the ride-sharing movement are unprecedented. Whether today's politicians and regulators have the courage and foresight to embrace this fundamental change will determine the long-term success and the meaningful evolution of our national transportation newtork.


2020 ◽  
Vol 12 (12) ◽  
pp. 4996 ◽  
Author(s):  
Xu-Hui Li ◽  
Lin Huang ◽  
Qiang Li ◽  
Hu-Chen Liu

Passenger satisfaction is an important factor that affects the choice of travel modes for municipalities, especially in big cities. This evaluation is an important task for managers when they are considering improving the competitiveness of the public transportation system. However, passenger satisfaction evaluation is difficult as the information provided by passengers is often vague, imprecise, and uncertain. This paper aims to propose a new method, using Pythagorean fuzzy sets and multi-objective optimization by a ratio analysis plus full multiplicative form method (MULTIMOORA), to evaluate the passenger satisfaction level of the public transportation system under large group environment. The former is employed to represent the satisfaction assessments of rail transit network provided by passengers. The latter is extended and used to determine the passenger satisfaction levels of rail transit lines. In addition, a combination weighting method is suggested to compute the relative weights of evaluation criteria. A case study of the rail transit network in Shanghai is provided to demonstrate the effectiveness of the proposed passenger satisfaction evaluation method. The result shows that the new method proposed in this study can not only model passengers’ satisfaction evaluation information with more uncertainties, but also determine more reasonable and credible satisfaction levels of rail transit lines.


2019 ◽  
Vol 8 (1) ◽  
pp. 39
Author(s):  
Andrea Paula Segatto ◽  
Thálita Anny Estefanuto Orsiolli ◽  
Luiz Aurélio Virtuoso ◽  
Fernanda Salvador Alves ◽  
Ananda Silva Singh ◽  
...  

2018 ◽  
Vol 14 (28) ◽  
Author(s):  
Luis Enrrique Ibarra-Morales ◽  
Natalia Guadalupe Romero-Vivar ◽  
Daniel Paredes-Zempual

El brindar un excelente servicio a través del atributo de la calidad, ha sido la constante en la mayoría de las empresas, ya que tiene un impacto directo en la satisfacción del cliente como usuario de los servicios y, en los resultados estratégicos de la organización. La presente investigación realiza un aporte al área de la administración y negocios, ya que mide la calidad del servicio y la satisfacción del usuario del sistema de transporte público en Hermosillo, Sonora, México. Esta investigación es de tipo cuantitativa con un universo de estudio de 1,296 usuarios del transporte, a los cuales se les aplicó un instrumento de medición donde se determinaron las dimensiones o atributos que más impactan en la satisfacción del cliente haciendo uso de la metodología Servperf (Service Performance). El análisis se llevó a cabo a través de un análisis factorial exploratorio (AFE); así como la técnica de regresión lineal múltiple. Las dimensiones evaluadas fueron: Tangibles, confiabilidad, responsabilidad, seguridad y, empatía. Los resultados de la estimación de regresión lineal múltiple determinan la importancia, peso y valor de cada dimensión en términos de satisfacción medido por la calidad del servicio otorgado y que, para este estudio, indican las áreas que se deben de atender y mejorar para que el usuario se sienta más satisfecho con el servicio en términos de calidad. Palabras clave: calidad del servicio, satisfacción del usuario, servperf, sistema de transporte público.  Abstract.Giving an excellent service trough quality attributes has been the constant in most organizations, now that it has a direct impact in client’s satisfaction as a user of the services, and in the strategic results of the organization. This research study makes a contribution to the area of administration and business, as it measures the quality service and clients’ satisfaction of the public transportation system in Hermosillo, Sonora, México. This investigation is a quantitative type with a universe of study of 1296 transport users, to whom was applied a measurement instrument where were determined the dimensions or attributes with the highest impact in client´s satisfaction, through the Servperf (Service Performance) methodology. The analysis was carried out through an exploratory factor analysis (EFA), as well as a multiple linear regression technique. The dimensions evaluated were: Tangible, reliability, responsibility, assurance and empathy. The results of the estimation of multiple linear regression determine the importance, weight and value of each dimension in terms of satisfaction measured by the quality service given and for this study, indicate the areas that have to be attended and improved for the clients to be more satisfied with the service in terms of quality.Key words: quality service, public transportation system, servperf, user’s satisfaction. 


sjesr ◽  
2021 ◽  
Vol 4 (2) ◽  
pp. 414-422
Author(s):  
Abdul Ghafar ◽  
Zulfiqar Ali Lashari ◽  
Saima Kalwar

The spatial and economic growth of cities and regions is heavily influenced by transportation. A better knowledge of public transportation will help to clarify the positions of the public and private sectors, as well as recognize the critical government position. To study the problems and issues of the public transportation system, Qasimabad, Hyderabad is selected as a study area due to some serious issues of public transportation. Personal observations and questionnaires were used to gather data from the research area. And for analyzing the data SPSS and MS Excel are used. The results reveal that the existing public transportation system is not meeting the needs of residents. Hence use of private transportation is high and causing environmental and traffic jam problems. As 68% of respondents use a motorbike for recreational purposes, 64% of respondents are not using public transport due to safety factors. In general, 54% of respondents were not satisfied with the service of public transport. As people are willing to use public transport but due to some factors such as safety, they are not using public transport so it is suggested that both vehicles and roads must be safe for users. This study aims to study the existing scenario of public transportation in terms of services and facilities, and people’s perception about public transportation. So it is concluded that people are tending to use public transport but under some certain conditions (factors preventing the use of public transport), if these concerns are solved then public transport system will become more efficient.


2018 ◽  
Vol 3 (1) ◽  
pp. 821 ◽  
Author(s):  
Antony García ◽  
Yessica Sáez ◽  
José Muñoz ◽  
Ignacio Chang ◽  
Héctor Montes Franceschi

This article presents the state of the art on the use of radiofrequency communication for the detection of objects and vehicles in motion, through the interaction between transmitter and receiver devices using ISM (Industrial, Scientific and Medical) bands. By quantifying parameters such as the absence or presence of signals and their intensity, it is possible to approximate the distance between an emitting device and a receiver, localized in the vehicle and a fixed point, respectively . The study of the methodologies used in this article aims to develop a system oriented to guide people with visual disabilities in the public transportation system, taking advantage of the main characteristics of radiofrequency communication: low cost, easy implementation and full compatibility with electronic boards built on embedded systems.Keywords: radiofrequency, ISM bands, detection of vehicles in motion, support for visual disability people, ETA


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