Andrew Wright

Publication Date

2018

Document Type

Dissertation/Thesis

First Advisor

Moraga, Reinaldo J.

Degree Name

M.S. (Master of Science)

Legacy Department

Department of Industrial and Systems Engineering

LCSH

Transportation; System theory; Operations research

Abstract

Inclement weather has a visceral impact on transportation systems, but it has been made undeniably clear. Reliable ground transportation is absolutely fundamental in global logistics, and the need to deliver goods to customers in a timely manner has never been more important. The field of operations research offers some quality logistics problems with the foresight to provide efficient transportation solutions. One of the most prevalent problems in operations research is the Traveling Salesman Problem (TSP). Although much research has gone into solving the classic TSP and some of its variants, none have been truly dedicated to integrating meteorological sciences. The methodological framework uses roadway travel distances as edges in a TSP network of real cities. Those edges must be transformed by some reduced travel speed, which becomes a function of both the static distance and dynamically probabilistic weather phenomena. A uniform speed is given to form control solutions for driving in ideal conditions. Upper and lower bounds for travel speeds in inclement weather are used to non-uniformly penalize the edges, and the TSP is resolved again. Both a greedy nearest neighbor heuristic and a simulated annealing heuristic are used for control and both bounded solutions. As expected, simulated annealing outperformed nearest neighbor in all cases. Expected locally optimal tour times were significantly shorter for the control solutions, while the longest locally optimal tours were found during most problematic and most probabilistic driving conditions. Although seemingly trivial, these results show how weather science and operations research can be sewn together in the name of transportation safety and efficiency.

Comments

Committee members: Gensini, Victor; Wang, Ziteng.||Advisors: Moraga, Reinaldo; Chen, Gary.||Includes maps.||Includes bibliographical references.

Extent

71 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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