Browsing by Author "Kurahashi, S."

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    An Infectious Disease Medical Policy Simulation and Gaming
    (IEEE International Research Conference on Smart computing & Systems Engineering (SCSE) 2019, Department of Industrial Management, Faculty of Science, University of Kelaniya, Sri Lanka, 2019) Kurahashi, S.
    This paper analyses a new type of infectious disease by an agent-based simulation and gaming model based on Ebola fever and dengue fever. The mathematical model such as SIR (Susceptible, Infected, Recovered) has been used to model these infectious diseases. Besides, a simulation and gaming model enables to represent the decision-making of each citizen on the computer, and al-so reveals the pandemic by the contact process among people in the model. The study challenges to design an infectious disease model in which some health policies are introduced including vaccine stocks, antiviral medicine stocks, medical staff and so on. Aside from the policies, a gaming simulation of a new type of infectious disease, which has not yet an effective vaccine, is also implemented in the model. We created a medical policy decision game dealing with infections using a serious game approach. As results of experiments, it has been found that preventive vaccine, antiviral medicine stocks and the number of medical staffs are crucial factors to prevent the spread. Besides, a modern city is vulnerable to dengue fever due to commuting by train. It has also been found that self-control and restraint on immigration are essential, and decision-making for vaccine reserve amount and medical support to the partner country where the infection has spread.
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    Street attractiveness enables change to a city structure
    (International Research Conference on Smart Computing and Systems Engineering - SCSE 2018, 2018) Kurahashi, S.; Nagai, H.
    The study proposes an agent-based model for urban dynamics, combining locating of a facility for stopping off and measures to promote street attractiveness. The model expresses simplified urban dynamics. It also enables to verify how policies affect the daily travel of urban residents and indirectly change an urban structure towards a desirable formation. As a result, the model clarified that the policy of street attractiveness affected compactification of an urban structure physically and a significant decrease of car users along with CO2 reduction. Use of this model, reveals significant differences of improvement effects on an urban structure depending on the locations of the facility, the implementation scale of each promotional measure around the facility, and demonstrates the synergy effects of the policy on transportation.