STATISTICAL PROPERTIES OF URBAN GROUND BUS-TRANSPORT NETWORKS FROM SELF-AVOIDING RANDOM WALKS

2007 ◽  
Vol 21 (16) ◽  
pp. 1027-1040 ◽  
Author(s):  
YONG-ZHOU CHEN ◽  
NAN LI
Keyword(s):  
Random Walks ◽  
Topological Structure ◽  
Empirical Investigation ◽  
Real Life ◽  
Statistical Properties ◽  
Transport Systems ◽  
Transport Networks ◽  
Simulation Research ◽  
Urban Bus ◽  
Bus Transport

We conjecture that the evolution process with self-avoiding random walks is the origin for the properties of urban ground bus-transport networks (BTN). In order to verify our conjecture, a toy model, which simulates the growth of urban bus-transport systems, is proposed after empirical investigation on the BTNs of four major cities in China. In current empirical and simulation research, our method combining weight and geographical topology of the BTN together allows us to study the coupling relations among the BTN's weighted quantities and underlying topological structure. Finally, the simulating results reveal that the model can reproduce most phenomena observed in real-life urban ground BTNs.

A study on some urban bus transport networks

2007 ◽  
Vol 376 ◽  
pp. 747-754 ◽  
Author(s):  
Yong-Zhou Chen ◽  
Nan Li ◽  
Da-Ren He
Keyword(s):  
Transport Networks ◽  
Urban Bus ◽  
Bus Transport

scholarly journals Optimization of Headways and Departure Times in Urban Bus Networks: A Case Study of Çorlu, Turkey

2018 ◽  
Vol 2018 ◽  
pp. 1-12
Author(s):  
Huseyin Ceylan ◽  
Tayfun Ozcan
Keyword(s):  
Public Transportation ◽  
Assignment Problem ◽  
Optimization Technique ◽  
Harmony Search ◽  
Real Life ◽  
Transport Systems ◽  
Transit Assignment ◽  
Proposed Model ◽  
Urban Bus ◽  
Bus Networks

The traffic congestion, which has become one of the major problems of developed and developing countries, has led to a shift in the way public transport systems are viewed, and it has accelerated efforts to increase the efficiency of these systems. In recent studies, several approaches, in which both user and operator benefits are evaluated together in order to increase the demand for public transportation systems and to ensure the sustainability of these systems, are emphasized. In this study, a bilevel simulation/optimization model is developed to optimize service headways and departure times of first buses from the beginning of the routes in urban bus networks. At the upper level of the proposed model, a multiobjective function representing user and operator costs is evaluated using the metaheuristic harmony search (HS) optimization technique. The transit assignment problem, which represents the distribution of transit users over the routes, is handled at the lower level. In the proposed model, the transit assignment problem is solved by the timetable-based assignment approach with VISUM transport planning software. The timetable-based transit assignment is an approach in which the perception errors within the users’ route choice are taken into consideration and the transfer wait times can be precisely calculated. The proposed model is applied to a real-life urban bus network of the Çorlu district (Tekirdağ, Turkey), and the effectiveness of the model on a medium-sized urban bus system has been demonstrated. The results show that the user and operator benefits can be simultaneously increased by adding an initial departure offset parameter to the problem.

Connectivity correlations in three topological spaces of urban bus-transport networks in China

2008 ◽  
Vol 17 (10) ◽  
pp. 3580-3587 ◽  
Author(s):  
Chen Yong-Zhou ◽  
Fu Chun-Hua ◽  
Chang Hui ◽  
Li Nan ◽  
He Da-Ren
Keyword(s):  
Topological Spaces ◽  
Transport Networks ◽  
Urban Bus ◽  
Bus Transport

Real-world assessment of urban bus transport in a medium-sized city of the Middle East: Driving behavior, emission performance, and fuel consumption

2021 ◽  
Vol 12 (3) ◽  
pp. 113-124 ◽  
Author(s):  
Omid Ghaffarpasand ◽  
Mohammad Reza Talaie ◽  
Hossein Ahmadikia ◽  
Amirreza Talaie Khozani ◽  
Maryam Davari Shalamzari ◽  
...  
Keyword(s):  
Middle East ◽  
Fuel Consumption ◽  
Real World ◽  
Driving Behavior ◽  
Emission Performance ◽  
Urban Bus ◽  
Bus Transport

The Role of Politics in the Historical Transport Networks of the Iberian Peninsula and the Pyrenees from Roman Times to the Nineteenth Century

2021 ◽  
Vol 45 (2) ◽  
pp. 233-260
Author(s):  
Pau de Soto ◽  
Cèsar Carreras
Keyword(s):  
Iberian Peninsula ◽  
Social Factors ◽  
Transport Network ◽  
Political Organization ◽  
Transport Systems ◽  
The Political ◽  
Political Systems ◽  
Transport Networks ◽  
Political Economic

AbstractTransport routes are basic elements that are inextricably linked to diverse political, economic, and social factors. Transport networks may be the cause or result of complex historical conjunctions that reflect to some extent a structural conception of the political systems that govern each territory. It is for this reason that analyzing the evolution of the transport routes layout in a wide territory allows us to recognize the role of the political organization and its economic influence in territorial design. In this article, the evolution of the transport network in the Iberian Peninsula has been studied in a broad chronological framework to observe how the different political systems of each period understood and modified the transport systems. Subsequently, a second analysis of the evolution of transport networks in the northeast of the Iberian Peninsula is included in this article. This more detailed and geographically restricted study allows us to visualize in a different way the evolution and impact of changes in transport networks. This article focuses on the calculation of the connectivity to analyze the intermodal transport systems. The use of network science analyses to study historical roads has resulted in a great tool to visualize and understand the connectivity of the territories of each studied period and compare the evolution, changes, and continuities of the transport network.

scholarly journals Optimal Design of Electric Bus Transport Systems With Minimal Total Ownership Cost

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 119184-119199
Author(s):  
Mohamed Lotfi ◽  
Pedro Pereira ◽  
Nikolaos G. Paterakis ◽  
Hossam A. Gabbar ◽  
Joao P. S. Catalao
Keyword(s):  
Optimal Design ◽  
Transport Systems ◽  
Electric Bus ◽  
Bus Transport
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