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Transportation between islands
Cross-sea bridges are good alternatives for island transportation in some areas, but traffic jam, air pollution and greenhouse effects are serious problems.
Today cross-sea bridges connecting moderately distanced islands are popular in many countries around the world. However, for commuters or pedestrians, especially who live in one island and work in the other and do not like driving, crossing tens or hundreds of kilometers seems unfavorable, time-consuming and tiresome. Certainly they can take traditional public transport like buses or even trains by undersea tunnels (only a few such as Seikan Tunnel in Japan or Chunnel in Europe), but somehow buses are not as fast as expected, especially in the traffic jam. In addition, they usually do not operate 24/7, which can cause problems for commuters working late at night.
On other aspect, current personal petrol vehicles crossing the bridge release large amount of toxic gases, which contribute to air pollution and greenhouse effects. Therefore, in effort to save the earth from global warming, reducing numbers of petrol vehicles, seeking alternative green energies, and introducing new types of green transportation will play very important roles in the future, not only for the archipelago areas but also for the whole world.
Research question: How to accelerate the bridge-traffic, reduce numbers of personal petrol vehicles, and promote green transportation?
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