FINDING COMMUNITY STRUCTURE IN SPATIAL MARITIME SHIPPING NETWORKS

2012 ◽  
Vol 23 (06) ◽  
pp. 1250044 ◽  
Author(s):  
ZHUO SUN ◽  
JIANFENG ZHENG ◽  
HONGTAO HU
Keyword(s):  
Community Structure ◽  
Numerical Experiments ◽  
Transportation Networks ◽  
Road Networks ◽  
Air Transportation ◽  
Urban Road ◽  
Maritime Shipping ◽  
Edge Removal ◽  
Shipping Networks

This study explores the community structure in spatial maritime shipping networks. As compared with air transportation networks and urban road networks, ports in spatial maritime shipping networks have smaller connections due to the physical confinement. A new divisive algorithm is proposed for detecting community structure in spatial maritime shipping networks. At each iteration for modularity optimization, the length of each edge is successively updated, instead of edge removal used in the conventional divisive method. Finally, numerical experiments based on the global maritime shipping network are carried out to account for the properties of community structure in spatial maritime shipping networks.

FRACTAL PATTERN IN SPATIAL STRUCTURE OF URBAN ROAD NETWORKS

2012 ◽  
Vol 26 (30) ◽  
pp. 1250172 ◽  
Author(s):  
ZHUO SUN ◽  
JIANFENG ZHENG ◽  
HONGTAO HU
Keyword(s):  
Spatial Structure ◽  
Numerical Experiments ◽  
Road Network ◽  
Road Networks ◽  
Urban Road ◽  
Fractal Pattern ◽  
Box Counting ◽  
Accessibility Pattern ◽  
Density Pattern ◽  
Counting Algorithm

In this paper, we investigate the fractal pattern in spatial structure of urban road networks. By introducing sub-domain, an improved box-counting algorithm is proposed to obtain the fractal pattern. Numerical experiments explore the realistic urban road network at Dalian city in China. In order to clearly show the performance of our proposed box-counting algorithm, two other measures for urban road networks, i.e., density pattern and accessibility pattern are introduced, compared and discussed.

Exploring the Structural Fractality of Urban Road Networks by Different Representations

2021 ◽  
pp. 1-15
Author(s):  
Hong Zhang ◽  
Peichao Gao ◽  
Tian Lan ◽  
Chengliang Liu
Keyword(s):  
Road Networks ◽  
Urban Road

scholarly journals To re-route, or not to re-route: Impact of real-time re-routing in urban road networks

2021 ◽  
pp. 1-15
Author(s):  
Amine M. Falek ◽  
Antoine Gallais ◽  
Cristel Pelsser ◽  
Sebastien Julien ◽  
Fabrice Theoleyre
Keyword(s):  
Real Time ◽  
Road Networks ◽  
Urban Road

A turning point-based offline map matching algorithm for urban road networks

2021 ◽  
Vol 565 ◽  
pp. 32-45
Author(s):  
Dongqing Zhang ◽  
Yucheng Dong ◽  
Zhaoxia Guo
Keyword(s):  
Turning Point ◽  
Road Networks ◽  
Map Matching ◽  
Matching Algorithm ◽  
Urban Road
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