This study analyzed the strategies and characteristics of the HafenCity project in Germany and the Sinagawa Tennoz project in Japan, representative successful cases of environmental improvement of urban, aiming to find a direction for sustainable environmental improvement of urban tourism and contribute to the planning of community amenities toward sustainable transportation system. For this task, first, this paper reviews the literatures on land use and Transportation Interaction and the indexes related to sustainability and sustainable transportation systems. Second, we reviewed major strategies and planning characteristics of HafenCity and Shinagawa Tennoz, and evaluated the two cases using the presented indexes for establishing sustainable transportation systems. Consequently, we propose that the achievement of sustainable transport with integrated land-use transport approach is contributed to the environmental improvement of urban tourism toward sustainable urban structure.