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In the context of the current construction of smart cities, cycling activities have grown rapidly, and the optimization of road cycling environments has become increasingly important. In order to explore the role of the optimization of cycling environment in improving the health of cyclists and shaping the overall sustainable environment of the city, this article takes the coastal road of Qingdao as the research object to consult the relevant literature and current environment investigation. The IPA analysis method is used to analyze and evaluate the safety, continuity, convenience, interest, and comfort of the cycling environment, to plan and construct the bicycle lanes to ensure the personal safety of cyclists, and to improve the original road facilities. In order to make suggestions for the optimization of the cycling environment in Qingdao, five aspects of developing the characteristic cycling route of coastal tourism are put forward. That is to ensure smooth cycling activities, to add bicycles parking facilities to maintain a good appearance of the city, to increase bicycles related services facilities, to make rational use of the vertical slope of the road, and to make use of the advantages of natural landscape resources. [ABSTRACT FROM AUTHOR]

• Application of multi-source data in accessibility indicator evaluation. • Multilevel search radius is adopted. • The inverse distance weighting method is used for indicator visualization. • Suggestions for urban renewal based on accessibility indicators. Rapid urbanization in China results in an uneven distribution of Urban Green Space (UGS) resources. This study aims to provide a scientific basis for optimizing the layout of UGS during the urban renewal process. This study takes Qingdao City Center of China as an example. Using the expanded model of Gaussian Two-Step Floating Catchment Area Method, different search thresholds are set based on the service scale and radius of UGS. This analysis delves into the distribution characteristics of UGS accessibility by walking. The results show that the accessibility of UGS in the Qingdao City Center presents an obvious circular structure, with Badaguan Block and Jinmen Block as the high-value core of accessibility that gradually decrease toward the periphery. There is a significant gap between the supply of UGS and the actual demand of the residential population, and 65.49% of residential quarters in Shinan District have lower accessibility of UGS than the average level of the whole district. According to the results of accessibility analysis, the optimization strategies and spatial intentions are proposed from three aspects: the renewal of existing spaces, the integration and utilization of resources, and the improvement of the UGS system. [ABSTRACT FROM AUTHOR]