| Summary: | The ferry traffic to Gotland is essential for the island’s ability to live and develop. Yearly, it transports 1,6 million passengers, 500 000 personal vehicles and 750 000 lane meters of freight with four Ro-Pax ferries. The traffic is controlled and subsidized by the Swedish government since 1971 in order to guarantee the inhabitants and industry of Gotland a satisfactory transportation service. As a consequence of the past decades increased traffic quality, mainly due to a decrease in crossing times, the traffic’s environmental impact and costs has also increased. The Master Thesis proposes a new energy efficient traffic arrangement that satisfies the users’ preferences in the same extent as today. The report presents the proposed traffic arrangement’s resulting energy demand and approximate costs, its ships, their routes, speeds and daily capacity. The report also presents the self-developed methodology which is used to evaluate and hence generate the final traffic arrangement. The methodology is called E-fleet in its programmed format. The Master Thesis, Energy Efficient Ferry Traffic to and from Gotland, shows that the Gotland Ferry Traffic can, with conventional technology, operate with 49 % less carbon dioxide emissions and with 200 million kronor less in fuel costs than today, without decreasing the traffic quality. The economical and environmental savings are achieved through a well planned traffic with suitable tonnage on appropriate routes.
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