potential disruptions in transportation

Read this article (See attachment) on the impact of transportation disruptions in a supply chain, and then answer each of the following questions. Cite your resources using APA format. (3-4 pages)

1. How does transportation add value in a supply chain?

2. What are the potential disruptions in transportation?

3. How do the disruptions impact the performance of a supply chain?

4. What are the ways to minimize transportation disruptions?

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"Not answered?"