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Advanced Engineering Informatics
journal homepage: www.elsevier.com/locate/aei
Full length article
Quantitative lifecycle risk analysis of the development of a just-in-time
transportation network system
John P.T. Mo
⁎
, Matthew Cook
RMIT University, Australia
ARTICLE INFO
Keywords:
Time critical manufacturing
Enterprise model
Transportation network
Lifecycle risk assessment
ABSTRACT
The automotive manufacturing industry is under financial pressure due to massive cost structure, relatively small
scale operation and strong global competition. In order to improve their operational cost efficiency, companies
have adopt lean principles in all their manufacturing activities, in particular, just-in-time supply chain. However,
a consequence of this policy makes the transportation network from the local supply chain time critical. This
paper uses an enterprise system model integrated with a quantitative method to study a manufacturing com-
pany’s logistics system re-development project. The quantitative risk analysis examines the project’s systems
engineering management plan to see if it is sufficiently to mitigate risks in design, monitoring and validation of
the project’s lifecycle processes. The computed risk profile shows a trend of decreasing risk and suggests areas of
improvement in the systems engineering plan to ensure greater probability of success. The research assumes a
single risk profile for the supply chain. Research is continuing in expanding to more accurate risk profile of the
project when partners of the supply chain have individual profiles.
1. Introduction
For decades, automotive manufacturing has been regarded as a
pillar of many countries’ economy. However, as manufacturing systems
become global, more competitors from different countries are entering
the race. In some countries, the industry is regarded as extremely
competitive [1]. In order to survive, automotive manufacturers have no
choice but to find ways to reduce cost and increase efficiency.
Typically, the major vehicle manufacturers are responsible for the
design and assembly of their products. However, the majority of com-
ponents for the car are sourced from independent suppliers. For ex-
ample, one of the major automotive manufacturers in Australia has 210
domestic suppliers with total 5177 parts supplied through its inbound
materials operations. These suppliers are also located in three different
states with the sources of parts evenly distributed among the states.
This type of operation required for closed loop supply chain manage-
ment, i.e. to deliver inbound domestic automotive parts from suppliers
to the main assembly plant and to return the empty packaging from the
assembly plant back to its suppliers [2].
Due to the diversity of the supply chain, one of the common pro-
blems in the automotive industry is to implement a lean material
management system by minimizing its inventory cost. This policy puts
pressure on the transportation network such that it has to operate on
the principle of Just-In-Time (JIT), i.e. small quantities of inbound
materials shall be delivered more frequently to the main assembly plant
instead of receiving a once off delivery in bulk sufficient for weeks.
Furthermore, the small delivery quantity shall be just enough to cover
production requirements for a defined period so as to keep the plant
running continuously without interruption.
Usually, third party logistics companies are responsible for pro-
viding fully integrated logistics services including the design and im-
plementation of JIT transportation network. However, prior experience
showed that although their transportation network design was seen as
cost effective on paper (operational plan), a lot of disruption often
occurred at the operational level due to the enormous number of ad hoc
delivery services that were charged at the premium rate because those
services were considered out of scope. This has blown off the pur-
chasing department budget.
An improvement project was initiated within one of the major
Australian automotive manufacturers to reduce its operation costs by
adopting ‘Just in Time’ policy to the design of a new transportation
network. Making system changes always carries risk, especially when
the change involves significant unknowns and investment. In order to
mitigate the risks, large scale system development projects are often
managed with systematic processes that are designed to minimise the
risk of making wrong decisions.
The purpose of this paper is to examine how a quantitative assess-
ment methodology can be used to estimate the levels of risk throughout
https://doi.org/10.1016/j.aei.2018.03.002
Received 13 November 2017; Received in revised form 16 February 2018; Accepted 13 March 2018
⁎
Corresponding author.
E-mail address: john.mo@rmit.edu.au (J.P.T. Mo).
Advanced Engineering Informatics 36 (2018) 76–85
1474-0346/ © 2018 Elsevier Ltd. All rights reserved.
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