Hierarchical Traffic Network Design under Emergency Logistics

2011 ◽  
Vol 219-220 ◽  
pp. 732-735
Author(s):  
Xiao Hui Li ◽  
Qing Mei Tan

In response to heavy demand for emergency logistics, an approach based on hierarchical network theory is introduced to solve the complexity of highway transportation network. It groups the traffic network into subprime networks and backbone networks on which a virtual local area network is designed accordingly to fulfill such function as information exchange and road condition renewal between forwarding stations. Compared with flat networks, the hierarchical traffic network design is in a good position to speed up routing, to conduct real-time monitoring and data-exchange, and consequently enhances efficiency of emergency logistics.

2011 ◽  
Vol 94-96 ◽  
pp. 1908-1911
Author(s):  
Xiao Hui Li ◽  
Qing Mei Tan

To meet emergency logistics need pre- or post-disaster, a topology network-based approach is introduced to solve the complexity of highway transportation system. It classifies the transportation system into sub- networks and central networks where a virtual local area network is designed in order to fulfill function of information exchange and road condition renewal between different forwarding stations. To renew real-time road conditions and data in terms of business or operation for each node, a virtual transportation network is designed based on foundation of central networks, which consequently reduces algorithm measure and also speeds up path-selection procedure.


2011 ◽  
Vol 55 (9) ◽  
pp. 2303-2314 ◽  
Author(s):  
Rafael Estepa ◽  
Antonio Estepa ◽  
Thiago Cupertino

Author(s):  
Nurul I. Sarkar ◽  
Krassie Petrova

Previous studies have shown that motivating students to learn about local area network (LAN) design can be difficult when presented in the traditional lecture format. To overcome this problem, a Web-based tool (“WebLan-Designer”) was developed as an aid in teaching and learning of LAN design at the introductory level. A WebLan-Designer provides a set of learning resources (tutorials, quizzes, network modeling, network design scenarios, key terms and definitions, and review questions and answers) and assists undergraduate students in learning the basics of both wired and wireless LAN design. The tool is Internet-based and can be accessed at any time so that students can study LAN design at their own pace and convenience. This flexible learning approach contributes positively to distance education and e-learning. The effectiveness of WebLan-Designer is evaluated both formally and informally; positive student and peer feedback indicates that the design and implementation of the tool has been successful and that using WebLan-Designer may have a positive impact on student learning and comprehension.


Author(s):  
Nurul I. Sarkar ◽  
Krassie Petrova

Previous studies have shown that motivating students to learn about local area network (LAN) design can be difficult when presented in the traditional lecture format. To overcome this problem, a Web-based tool (“WebLan-Designer”) was developed as an aid in teaching and learning of LAN design at the introductory level. A WebLan-Designer provides a set of learning resources (tutorials, quizzes, network modeling, network design scenarios, key terms and definitions, and review questions and answers) and assists undergraduate students in learning the basics of both wired and wireless LAN design. The tool is Internet-based and can be accessed at any time so that students can study LAN design at their own pace and convenience. This flexible learning approach contributes positively to distance education and e-learning. The effectiveness of WebLan-Designer is evaluated both formally and informally; positive student and peer feedback indicates that the design and implementation of the tool has been successful and that using WebLan-Designer may have a positive impact on student learning and comprehension.


1983 ◽  
Vol 1 (5) ◽  
pp. 857-868 ◽  
Author(s):  
G. Ellis ◽  
S. Dillon ◽  
S. Stritter ◽  
J. Whitnell

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