Notes: ^aFor geography consideration, it could involve hinterland transportation system, port and neighbour city’s attractions, etc. For climate consideration, Taiwan is a small island and the climate situation (e.g. temperature, humidity, etc.) might exist a little variation among four ports but the variation might be not significant. Above two factors (geography and climate) might be a subjective opinion and weight score consequently might be different for each expert. For example, some experts thought Keelung has better weight score in geography and climate, as it is close to Taipei and can visit modern city attractions. On the other hand, some experts thought Hualien has better weight score in geography and climate, as Hualien locates at East coastal and can offer natural landscapes. Our final weights are summarized from 26 experts’ opinions and we believe it can reduce subjective opinion difference for each expert