Analysis of the public transit accessibility in Changsha City, China, after the introduction of a subway network

Zhai, Xuehao; Zhao, Jiahui; Chen, Qun

doi:10.1142/s021797921850354x

Cited by 5 publications

(1 citation statement)

References 22 publications

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“…Sarah et al [ 43 ], through a comparative analysis of accessibility for various modes of travel, found that the gravity model is significantly applicable to situations with different path efficiencies. Zhai et al [ 44 ], based on gravity models and opportunity models, conducted a comparative analysis of accessibility before and after the construction of urban subways, where traffic speed and transportation efficiency were identified as important influencing factors. This study focuses on the impact of water bodies on the evolution of urban road network structure and the inherent relationship between the corresponding road network structure and the overall accessibility of urban roads.…”

Section: Objects and Methodsmentioning

confidence: 99%

The impact of rivers and lakes on urban transportation expansion: A case study of the century-long evolution of the road network in Wuhan, China

Peng,

Ding,

Guo

et al. 2024

PLoS ONE

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Throughout history, rivers and lakes have wielded a profound influence on the dynamics of urban transportation expansion. To illustrate this phenomenon, we turn to the century-long evolution of the road network in Wuhan, China, as a case study. The study aims to explore the relationship framework between water bodies and urban transportation, characterized by the sequence of “strong connection” to “weakened connection”, then to “mutual restriction”, and ultimately to “mutual benefit”. Additionally, the analysis of the impact mechanisms of rivers and lakes on urban transportation at different stages of development is also a key research objective. To facilitate our exploration, we select the road networks in Wuhan from four years of 1922, 1969, 1995, and 2023 as the primary research subjects. By establishing water buffers, we scrutinize the evolving characteristics of riverside and lakeside transportation amidst the city’s expansion. Based on the modified shortest path model, we introduce the innovative concepts of “Detour Index” and “Weighted Detour Index” to assess the road accessibility of each node in the city based on its inherent environmental conditions. This allows for the effective analysis of the potential impact of water bodies as “obstacles” on the road network at different stages of urban development. The study found that in the areas adjacent to the rivers and lakes in Wuhan, there is insufficient road accessibility based on their inherent environmental conditions. Particularly, some areas along the rivers may become “terminals” in the urban road network. Furthermore, during the process of urban expansion, the correlation between the urban road network and rivers continues to weaken, while the correlation with lakes continues to strengthen. These conclusions can provide valuable insights for the planning of urban roads near water bodies.

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Section: Objects and Methodsmentioning

confidence: 99%

The impact of rivers and lakes on urban transportation expansion: A case study of the century-long evolution of the road network in Wuhan, China

Peng,

Ding,

Guo

et al. 2024

PLoS ONE

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A layout optimization approach to urban park green spaces based on accessibility evaluation: a case study of the central area in Wuxi city

Fan

Cheng

2022

Local Environment

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Traffic assignment model for combined mode with travel condition constraints

Wang

Zhen-zhen³

et al. 2020

Int. J. Mod. Phys. B

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Combined-mode traffic assignment is one of the key links for multi-modal transportation planning. In order to quantitatively evaluate the implementation effect of combined-mode transportation and explore its assignment mechanism, a combined-mode traffic assignment model with travel constraints is proposed. First, the practical factors of combined mode in real world are discussed and integrated into the analysis of multi-modal network transformation as related constraints. Second, the physical transportation network is translated to equivalent super network (SN) and state-augmented network (SAN) based on the graph theory. Moreover, the network size constrained by the actual conditions is conducive to further analysis of combined-mode trips. Third, a tri-level combined-mode traffic assignment model is formulated based on the simulation platform of SAN. The first level of the model is to address the combined-mode choice, the second level is to transfer choice on SAN, and the third level is to characterize auto travelers’ route choice behavior. By analyzing the impedance in multi-level network, an MSA algorithm solving Nest-Logit model is proposed. Finally, numerical example is performed to validate the model. The method proposed in this paper considers the travel similarity, reduces the network scale, conforms to the travel logic and makes up for the shortcomings of traditional traffic allocation methods.

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Analysis of the public transit accessibility in Changsha City, China, after the introduction of a subway network

Cited by 5 publications

References 22 publications

The impact of rivers and lakes on urban transportation expansion: A case study of the century-long evolution of the road network in Wuhan, China

The impact of rivers and lakes on urban transportation expansion: A case study of the century-long evolution of the road network in Wuhan, China

A layout optimization approach to urban park green spaces based on accessibility evaluation: a case study of the central area in Wuxi city

Traffic assignment model for combined mode with travel condition constraints

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