INSTANT MESSAGING LI Xiaohui LIU Miao ZHOU Guanpei Universität Salzburg WAP Präsentation WS 2005/06.
Transportation network design Zhang Xiaohui. Contents Introduction Literature review Paper problem.
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Transcript of Transportation network design Zhang Xiaohui. Contents Introduction Literature review Paper problem.
Transportation network design
Zhang Xiaohui
Contents
• Introduction• Literature review• Paper problem
Introduction
• Design how to transport in the supply chain• Objective
reduce costs, reduce transportation time• Transportation modes
railway(train), highway(truck), waterway(ship)
Review
• Truck transportation• Solution techniques
Transportation rates (uniform freight classification)Mathematical model (LP, algorithms)Simulation model
Problem
A
B
CD
EG
truckship
train
Design
• Decentralized warehouse• 3 ways of transportation
railway (maybe just only one choice)waterway (maybe just only once choice)highway (alternative choice)
Highway
• 3 types of trucks:truck A: 17ttruck B: 27ttruck C: 35t
costs Truck A Truck B Truck C
Fixed costs 0.735 0.971 1.442
petrol 1.180 1.450 1.550
Highway
• Different highway has different rates for trucks
• Different highway choices:A
B
C
D
F
E G
highway XY Truck A 17t Truck B 27t Truck C 35t
Toll
rate
Not overload 1.17 1.53 1.68
overload30% 1.58 2.18 2.52
overload50% 2.16 2.24 3.83
overload100
%5.39 8.23 10.36
Objective
• When getting an order, arrange the best transportation to minimize the total transportation costs, within the demander’s required lead time.
Thanks for your attention