Kriging-Based Approach for Estimation of Vehicular Speed and Passenger Car Units on an Urban Arterial

Biswas, Subhadip; Chakraborty, Souvik; Chandra, Satish; Ghosh, Indrajit

doi:10.1061/jtepbs.0000031

Cited by 31 publications

(13 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Em comparação com a regressão linear múltipla (RLM), os resultados da KU demonstraram um desempenho superior. Biswas et al (2017) também aplicaram a KU para a modelagem indireta do volume de tráfego, em unidades de carros de passeio, a partir da velocidade dos veículos. Nesse caso, a Krigagem Universal foi validada a partir de dados coletados de uma via arterial com características semelhantes às da via cujos dados foram utilizados no treinamento do modelo.…”

Section: Krigagem Universalunclassified

Intersectando Geoestatística com Modelagem da Demanda por Transportes: um Levantamento Bibliográfico

Marques

Pitombo

2020

Rev. Bras. Cartogr.

View full text Add to dashboard Cite

O planejamento de transportes depende da modelagem de variáveis que, em função de usualmente exigirem recursos elevados para a sua coleta, dispõem de uma amostragem limitada. Entretanto, uma vez que apresentam dependência espacial, a utilização da Geoestatística na modelagem da demanda por transportes se mostrou bastante conveniente, já que esse ferramental permite a obtenção de estimativas em locais não amostrados. Nesse contexto, a linha de pesquisa voltada a aplicações da Geoestatística na previsão da demanda por transportes se dá no âmbito de três das quatro etapas do modelo sequencial de planejamento (geração de viagens, escolha modal e alocação de fluxo), abrangendo trabalhos que podem ser divididos conforme o suporte, ou escala geográfica adotada, e tipo de modelo utilizado. Dessa forma, no intuito de estabelecer o estado da arte dessa linha de pesquisa, o presente trabalho propôs o levantamento e discussão de estudos no âmbito de zonas de tráfego, áreas regulares, segmentos viários, estações de metrô, pontos de parada, trechos de linha de ônibus e domicílios/indivíduos, os quais se valeram dos interpoladores geoestatísticos Krigagem Simples, Ordinária, Indicativa, Universal e Espaço-temporal, além de Simulação Sequencial Gaussiana. A análise detalhada dos trabalhos permitiu a identificação de lacunas de pesquisa nas etapas de validação dos modelos, comparação com outras abordagens espaciais e não espaciais, utilização de distâncias em rede, aplicações da Krigagem Universal (KU) a variáveis de escolha modal e seleção de preditores para a KU. Atenção especial deverá ser dada à Simulação Sequencial Gaussiana e à Krigagem Espaço-temporal, modelos que devem ditar a evolução da linha de pesquisa nos próximos anos.

show abstract

Section: Krigagem Universalunclassified

Intersectando Geoestatística com Modelagem da Demanda por Transportes: um Levantamento Bibliográfico

Marques

Pitombo

2020

Rev. Bras. Cartogr.

View full text Add to dashboard Cite

show abstract

“…• Secondly, the popular methods for uncertainty quantification such as perturbation method [7,8], point estimate method [9], simulation based approach [10,11], Kriging [12][13][14][15][16][17], polynomial chaos expansion [18,19], moving least square method [20,21] and radial basis function [22][23][24] often yields erroneous results. For example, perturbation method yields erroneous result for highly nonlinear system.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

A surrogate based multi-fidelity approach for robust design optimization

Chakraborty

Chatterjee

Chowdhury

et al. 2017

Applied Mathematical Modelling

Self Cite

View full text Add to dashboard Cite

This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Highlights • A surrogate based multi-fidelity framework for RDO is proposed. • The first approach is highly efficient and requires very few actual simulations. • Second approach yields highly accurate result from slightly increased simulation.

show abstract

“…The research [26] also pointed out Energies 2021, 14, 4577 2 of 20 the variability of traffic flow on individual road lanes. Some studies concern themselves with sections of motorways and expressways in urban areas [27][28][29]. Obtaining reliable data is an extremely important aspect of reliability studies.…”

Section: Introductionmentioning

confidence: 99%

Measures of Functional Reliability of Two-Lane Highways

Ostrowski

Budzyński

2021

Energies

View full text Add to dashboard Cite

Rural two-lane highways are the most common road type both in Poland and globally. In terms of kilometres, their length is by far greater than that of motorways and expressways. They are roads of one carriageway for each direction, which makes the overtaking of slower vehicles possible only when there is a gap in the stream of traffic moving from the opposite direction. Motorways and express roads are dual carriageways that are expected to support high speed travel mainly over long distances. Express roads have somewhat lower technical parameters and a lower speed limit than motorways. Two-lane highways are used for both short- and long-distance travel. The paper presents selected studies conducted in Poland in 2016–2018 on rural two-lane highways and focuses on the context of the need for their reliability. The research was carried out on selected short and [longer road sections located in various surroundings, grouped in terms of curvature change rate CCR, longitudinal slopes and cross-sections (width of lanes and shoulders). The studies of traffic volumes, travel time and travel speed, as well as traffic density, will be used to analyze traffic performance and identify measures of travel time reliability. The analyzed roads were characterized by good technical parameters and significant variability of traffic volume throughout the day, week and year. Some roads experience congestion, i.e., situations in which traffic volume Q is close to or above respective road capacity C. In order to determine the form of the suitable reliability measures, it will be important to determine the extent to which a road’s geometric and traffic characteristics impact travel speed and time. The paper presents well-known reliability measures for dual carriageways and proposes new measures, along with an evaluation of their usefulness in the assessment of the functioning of two-lane highways.

show abstract

Kriging-Based Approach for Estimation of Vehicular Speed and Passenger Car Units on an Urban Arterial

Cited by 31 publications

References 39 publications

Intersectando Geoestatística com Modelagem da Demanda por Transportes: um Levantamento Bibliográfico

Intersectando Geoestatística com Modelagem da Demanda por Transportes: um Levantamento Bibliográfico

A surrogate based multi-fidelity approach for robust design optimization

Measures of Functional Reliability of Two-Lane Highways

Contact Info

Product

Resources

About