Applicability of highway alignment optimization models

Kang, Min-Wook; Jha, M. K.; Schonfeld, Paul

doi:10.1016/j.trc.2011.09.006

Cited by 125 publications

(91 citation statements)

References 24 publications

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“…Kim et al [1] and Kang et al. [2] present some previous works in these two areas, which are complemented and summarized in Table 1. In this table, these works are categorized based on the type of the solution procedure employed to solve the problem.…”

Section: General Statementsmentioning

confidence: 99%

An Electromagnetism-like Algorithm to Solve Three-dimensional Highway Alignment Problem

Mohammadi

Poorzahedy

2018

Scientia Iranica

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Road alignment design is an important determinant of the development cost of road networks.On the one side, it affects road construction and maintenance costs, which constitute a significant part of country-wide infrastructure development, management and operation budget each year.On the other side, it affects road user-related costs of travel time and vehicle use, which comprise a significant portion of the total transportation cost. This study adapts the existing Electromagnetism-like meta-heuristic algorithm to solve a three-dimensional highway alignment problem, which explores and finds a good route between two given points on a terrain. It detects the potentials of the given initial routes, which are enhanced and shaped toward better positions by the help of the local and global search. The final good solution is, then, fine-tuned for a better alignment. Several example problems are designed to show the behavior of the algorithm. The results show that the algorithm satisfactorily maneuvers to by-pass obstacles, and build highway structures where necessary. The set of the example problems in this paper may also serve to found a basis for evaluation of the performance of alternative algorithms.

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Section: General Statementsmentioning

confidence: 99%

An Electromagnetism-like Algorithm to Solve Three-dimensional Highway Alignment Problem

Mohammadi

Poorzahedy

2018

Scientia Iranica

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“…It formulates the horizontal alignment optimization problem as a network problem and the total alignment cost is calculated by the linear combination of all the costs assigned to each link of the network. The model proposed by Jha [2], [3], Jha and Schonfeld [4], Jong et al [5] and Kang et al [9], considers intermediate PIs at predefined orthogonal planes and fixed radius curves. Mondal [10], developed a model to optimize horizontal alignment along specific corridors.…”

Section: Horizontal Highway Alignment Optimization Modelsmentioning

confidence: 99%

Optimization of Horizontal Highway Alignment Using a Path Planner Method

Mb¹,

Maji²

2017

WIT Transactions on the Built Environment

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This paper proposes Path Planner Method (PPM) that operates on the principal of Rapidly-exploringRandom Tree (RRT) algorithm to obtain an optimal horizontal alignment. It has the ability to efficiently search in non-convex high dimension space. It primary goal is to explore the entire study area by generating random point of intersections (PIs). In this, a tree like path is developed iteratively by expanding from start to end point. These paths would meet the requirements of highway geometric guidelines and minimizes cost. It's an interactive two-stage process. Firstly, it finds an optimum set of PI's connected by tangent sections. Secondly, appropriate curves are fitted at each PI to obtain horizontal alignment. The alignment is checked for encroachment to the restricted area and any violation leads to further refinement of the PI locations. The method's efficiency is verified through a case study using a geographical map of a place in Odisha, India.

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“…Kang et al (2012) apresentam uma abrangente revisaõ sobre as principais abordagens para resolução do problema de otimizaçaõ de traçados rodoferroviários considerando os parâmetros geometricos dos alinhamentos. Dadas as pesquisas de Jong e Schonfeld (2003), Jha et al (2006) e Samanta e Jha (2011), Kang et al (2012) argumentam que o Algoritmo Genetico (AG) tem sido a tećnica mais e iciente para estimativa de valores próximos de um mıńimo global para os investimentos em infraestruturas lineares rodoviárias e ferroviárias.…”

Section: Investimentos Em Infraestruturaunclassified

Análise socioeconômica de alternativas para o transporte ferroviário de passageiros em uma rede regional

Isler

Widmer

2017

TRANSPORTES

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RESUMOApesar da divulgação de estudos recentes sobre o transporte ferroviário de passageiros no Brasil, não existe na literatura uma comparação entre tecnologias para oferta desses serviços. Ao considerar uma hierarquia de serviços ferroviários, este ar go tem o obje vo de comparar a operação exclusiva de trens com velocidade média de 150 km/h (HPT) e 300 km/h (HST) em uma rede hipoté ca na Região Sudeste do país. Pelos resultados de uma Análise Custo-BeneBcio, os valores de inves mentos es mados para construção da rede de HST são 5,36% superiores à de HPT. No âmbito estritamente econômico, sob diferentes cenários, nenhuma das tecnologias é viável de ser operada sem subsídio. Do ponto de vista socioeconômico, os beneBcios sociais superam os custos econômicos na rede de HPT e HST quando as tarifas são, respec vamente, de R$0,40/km e R$0,75/km, ultrapassando o valor de 1,50 para a Relação BeneBcio-Custo somente pela operação de HST em cenários específicos. ABSTRACTDespite the recent studies on the railway passenger transport in Brazil there is not a comparison among different technologies for the proposed services in the literature. This paper aims to compare the exclusive opera on of trains with average speed of 150km/h (HPT) and 300 km/h (HST) over a hypothe cal network in the Southeast Region of Brazil while considering a hierarchy of different railway services. The results of a Cost-Benefit Analysis show that the es mated investment for construc on of the HST network is 5.36% higher than the HPT network. In the economic level, none of the technology is feasible to be operated without subsidy under different scenarios. From the socioeconomic perspec ve, the social benefits surpass the economic costs when the fare of the HPT is R$0.40/km and the fare of the HST is R$0.75/km, exceeding the value of 1.50 for the Benefit-Cost Ra o only by the opera on of the HST network under specific scenarios. Palavras-chaves:

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Applicability of highway alignment optimization models

Cited by 125 publications

References 24 publications

An Electromagnetism-like Algorithm to Solve Three-dimensional Highway Alignment Problem

An Electromagnetism-like Algorithm to Solve Three-dimensional Highway Alignment Problem

Optimization of Horizontal Highway Alignment Using a Path Planner Method

Análise socioeconômica de alternativas para o transporte ferroviário de passageiros em uma rede regional

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