Capacitated single‐allocation hub location model for a flood relief distribution network

2020 ◽  
Vol 36 (3) ◽  
pp. 1320-1347
Author(s):  
Ornurai Sangsawang ◽  
Sunarin Chanta
1970 ◽  
Vol 24 (5) ◽  
pp. 433-440 ◽  
Author(s):  
Jasmina Pašagić Škrinjar ◽  
Kristijan Rogić ◽  
Ratko Stanković

In this paper the problems of locating urban logistic terminals are studied as hub location problems that due to a large number of potential nodes in big cities belong to hard non-polynomial problems, the so-called NP-problems. The hub location problems have found wide application in physical planning of transport and telecommunication systems, especially systems of fast delivery, networks of logistic and distribution centres and cargo traffic terminals of the big cities, etc. The paper defines single and multiple allocations and studies the numerical examples. The capacitated single allocation hub location problems have been studied, with the provision of a mathematical model of selecting the location for the hubs on the network. The paper also presents the differences in the possibilities of implementing the exact and heuristic methods to solve the actual location problems of big dimensions i.e. hub problems of the big cities.


Author(s):  
Dimitrije D. Čvokić ◽  
Zorica Stanimirović

Author(s):  
Yuehui Wu ◽  
Chang Lin ◽  
Jingyu Huang

With the gradual implementation of the Belt & Road Initiative, China Railway Express (CRExpress) has gradually gained support as an important transportation mode between China and Europe. However, the high cost of operation, caused by the unscientific organization mode and the small quantity of returning cargo, hinders the further development of CRExpress. Prior studies have shown that applying the hub-and-spoke transportation organization mode to the CRExpress system could decrease operational cost effectively. To carry out network planning for CRExpress, based on its present situation and properties, a conventional hub location model is adjusted. The network planning location model for CRExpress which minimizes total operation cost and allows direct transportation mode is proposed as well as an algorithm based on the genetic algorithm (GA) approach. The reasonableness and feasibility of the model and algorithm are investigated and verified through a case study based on the CRExpress system. The result indicates that Chengdu, Yingkow, and Zhengzhou are selected as consolidation centers whereas Urumqi and Xining adopt direct transportation mode.


2011 ◽  
Vol 38 (2) ◽  
pp. 559-570 ◽  
Author(s):  
J. Puerto ◽  
A.B. Ramos ◽  
A.M. Rodríguez-Chía

Sign in / Sign up

Export Citation Format

Share Document