Basic concepts

In this example, in the picture, a container ship traveled across routes between Asia and Europe. This ship visited 11 countries, 19 ports, and 22 terminals. The countries are the nodes in this picture, and their travel ruts are the links.

Which country, if its ports were closed by an epidemic, could stop the travel of the container ship to other countries following its travel network?
  • A. Spain, Singapore, or China
  • B. Singapore or China
  • C. China or Grecia
  • D. Greece, Egypt, or the United Arab Emirates
  • E. None of the above.

Original idea from: Rolan Alexander Valle Rey Sánchez.



imagen from: Wang, Z., Claramunt, C., & Wang, Y. (2019). Extracting Global Shipping Networks from Massive Historical Automatic Identification System Sensor Data: A Bottom-Up Approach. Sensors (Basel, Switzerland), 19. http://dx.doi.org/10.3390/s19153363

Comments

  1. Joao MeidanisMarch 11, 2023 at 2:35 AM

    Interesting question. I'm not sure I understood it, though. For instance, China is the only way to get to Korea, so I would think China is one of the countries sought. However, UAE is the only way to get to Singapore from Egypt, but not from Italy. Does that qualify? It isn't clear. Besides, the information on the number of ports and terminals seems to be irrelevanmt for the question, so I would leave it out. Unforntunately, I cannot take your question as is.

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