scholarly journals Prioritizing road network connectivity information for disaster response

2015 ◽  
Author(s):  
Yingjie Hu ◽  
Krzysztof Janowicz
Keyword(s):  
Disaster Response ◽  
Road Network ◽  
Network Connectivity ◽  
Connectivity Information

Testing the Impact of Road Network Connectivity on Criminal Lethality

2018 ◽  
Vol 22 (3) ◽  
pp. 277-295 ◽  
Author(s):  
Aaron C. Poole ◽  
James C. McCutcheon ◽  
Kayla Toohy ◽  
Bert Burraston
Keyword(s):  
Road Network ◽  
Reporting System ◽  
Explanatory Variable ◽  
Network Connectivity ◽  
Google Earth ◽  
Community Survey ◽  
Data Sources ◽  
American Community Survey ◽  
Positive Outcomes ◽  
The Impact

Increased road network connectivity has been linked to more positive outcomes among all health outcomes. Road network connectivity has yet to be tested in association with specifically criminal lethality. The current study looks to incorporate road network connectivity as an explanatory variable for criminal lethality. Data on Road Network Connectivity and Criminal Lethality are gathered for 190 cities. Data sources include the National Incident-Based Reporting System (NIBRS), 2010 Census, 2010 American Community Survey, Google Earth, and Census Topologically Integrated Geographic Encoding and Referencing (TIGER) files. The data demonstrate that a city’s road network connectivity is related to decreases in the rates of lethality among assaults. Implications of this finding are discussed.

scholarly journals The Study of How Open Community Based on Combination Weighting Method Influence on Road Capacity

2017 ◽  
Vol 11 (6) ◽  
pp. 15 ◽  
Author(s):  
Zhuhui He ◽  
Rui Liao ◽  
Longlong Wang
Keyword(s):  
Road Network ◽  
Comprehensive Evaluation ◽  
Positive Impact ◽  
Evaluation Model ◽  
Network Connectivity ◽  
Entropy Weight ◽  
Weighting Method ◽  
Linear Coefficient ◽  
The Road ◽  
Road Capacity

The paper studies whether the opening of community can improve the road capacity. First of all, based on the consideration of road space and traffic quality, the evaluation indexes are: road network density, road network connectivity, non-linear coefficient, traffic volume of main road beside community, delay time of intersection, travel time consumption and vehicle accessibility. Secondly, the weight of the index is calculated by the method of relative comparison, the variation coefficient method and the entropy weight method. Then, we sort the three weights, using the correlated coefficient and degree of spearman rank to combine the three weights, so as to get combined weights of various index and achieve the effect which makes good use of the method. Finally, we combine indicators and weights, establish a comprehensive evaluation model, and assess the road capacity before and after the opening of the road. Through the calculation, it is found that the comprehensive evaluation index after the opening of the community is higher than that before the opening, that is, the positive impact on the surrounding roads.

Reliability Evaluation Model of Highway Network Connectivity in Western Mountainous Area

2013 ◽  
Vol 361-363 ◽  
pp. 2134-2139
Author(s):  
Xian Guang Wang ◽  
Xiao Nian Sun ◽  
Ming Wen Wang
Keyword(s):  
Road Network ◽  
Evaluation Model ◽  
Network Connectivity ◽  
Reliability Evaluation ◽  
Mountainous Area ◽  
The Road ◽  
Highway Network ◽  
Planning And Construction ◽  
Important Significance ◽  
Highway System

The research on the reliability of highway network connectivity has important significance in the western region. According to the characteristics of western mountainous highway, this paper sets up the reliability evaluation idea of highway network connectivity from the section to the route, from the route to the road network, and establishes the reliability evaluation model of the connectivity of section, route and road network based on the analysis of highway unit reliability. The research results provide the theoretical basis for western mountainous road network planning and construction as well as disaster-resistance and disaster-prevention countermeasures of highway system.

scholarly journals Assessment of Road Network Connectivity using Graph Theory in the Chehel-Chai Watershed, Golestan Province

2017 ◽  
Vol 8 (15) ◽  
pp. 259-267
Author(s):  
محسن مصطفی ◽  
شعبان شتایی جویباری ◽  
مجید لطفعلیان ◽  
امیر سعدالدین ◽  
◽  
...  
Keyword(s):  
Graph Theory ◽  
Road Network ◽  
Network Connectivity ◽  
Golestan Province

Study on the Connectivity Reliability of Underground Road System

2012 ◽  
Vol 209-211 ◽  
pp. 724-729
Author(s):  
Xue Hui Yang ◽  
Yang Yang ◽  
Ling Ling Wu
Keyword(s):  
Road Network ◽  
Network Connectivity ◽  
Emergency Evacuation ◽  
The Impact ◽  
Road System ◽  
Calculation Models

The problems in connectivity of underground road system deepens the impact from disastrous emergencies. The more reliable connectivity calls for less time for emergency evacuation from underground road. Based on the summary analysis of urban underground road network, connectivity reliability is well defined and its calculation models are established in the article. Additionally, the evaluation is made of the reliability of different connectivity in different urban underground road system and the ways to improve are correspondingly recommended.

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