The COVID-19 pandemic has devastated global tourism and recovery is proceeding very slowly.For many countries,tourism served as a major economic sector,so investigating how to recover is essential.As China was the lar...The COVID-19 pandemic has devastated global tourism and recovery is proceeding very slowly.For many countries,tourism served as a major economic sector,so investigating how to recover is essential.As China was the largest source of outbound travelers before the outbreak,study of the factors influencing Chinese intentions to travel overseas in the post-COVID era is revealing.In Apr.2022,among seven provinces(or cities)with the most outbound tourists from 2019 to 2021,2450 individuals responded to a questionnaire on daily mobility,tourism experiences,and the shifts due to the pandemic.Light gradient boosting machine(LightGBM),a robust ensemble learning method,was adopted to quantify and visualize the impact of explanatory factors on outbound travel intention.In addition,the Optuna mechanism and Shapley additive explanation(SHAP)instruments were employed for tuning hyperparameters and interpreting results,respectively.Findings suggest neither one-day nor multi-day tours have resumed to pre-COVID levels.Higher frequency of multi-day tours with further destinations,less car utilization in daily shopping trips,and moderate pandemic restrictions can boost the intention to travel abroad.The concerns and desires of different age groups for overseas travel need different responses.This study reveals the factors affecting Chinese outbound travel intentions and provides suggestions for the recovery of tourism in the post-COVID period.展开更多
One of the main reasons for the decline of urban historic areas in China is the coexistence of multiple property rights.It also deeply affects conservation and regeneration practice.This paper aims to propose a graphi...One of the main reasons for the decline of urban historic areas in China is the coexistence of multiple property rights.It also deeply affects conservation and regeneration practice.This paper aims to propose a graphical method that illustrates the association between property rights,space,and resident behavior.Based on typological maps and justified graphs,a three-step method was proposed to visualize the relationships between these three elements.The final graph and quantitative data were used to observe the evolution of the courtyard building from a diachronic perspective,as well as to compare the residential behavior in different types from a synchronic perspective.The results show that following the subdivision of property rights,the building layout become more diverse due to various illegal additions,while the residential behavior within different building types tends to be consistent.Moreover,the study observed the traditional Chinese courtyard buildings’adaptability.The findings contribute to understand the evolution of Chinese urban historic areas and internal motivation,and provide guidance for the conservation and regeneration practice.展开更多
基金the National Natural Science Foundation of China(No.52131202)the Natural Science Foundation of Zhejiang Province(No.Y21E080079)the Center for Balance Architecture,Zhejiang University,China.
文摘The COVID-19 pandemic has devastated global tourism and recovery is proceeding very slowly.For many countries,tourism served as a major economic sector,so investigating how to recover is essential.As China was the largest source of outbound travelers before the outbreak,study of the factors influencing Chinese intentions to travel overseas in the post-COVID era is revealing.In Apr.2022,among seven provinces(or cities)with the most outbound tourists from 2019 to 2021,2450 individuals responded to a questionnaire on daily mobility,tourism experiences,and the shifts due to the pandemic.Light gradient boosting machine(LightGBM),a robust ensemble learning method,was adopted to quantify and visualize the impact of explanatory factors on outbound travel intention.In addition,the Optuna mechanism and Shapley additive explanation(SHAP)instruments were employed for tuning hyperparameters and interpreting results,respectively.Findings suggest neither one-day nor multi-day tours have resumed to pre-COVID levels.Higher frequency of multi-day tours with further destinations,less car utilization in daily shopping trips,and moderate pandemic restrictions can boost the intention to travel abroad.The concerns and desires of different age groups for overseas travel need different responses.This study reveals the factors affecting Chinese outbound travel intentions and provides suggestions for the recovery of tourism in the post-COVID period.
基金This work was supported by China Postdoctoral Science Foundation(grant No.2020M681458)the National Natural Science Foundation of China for project"Research on the Mechanism and Method of Conservation and Regenerationof Historic Areasunder the Background of Coexistence of Multiple Property Rights--a Case Study of Nanjing Old City"(grant No.52008083).
文摘One of the main reasons for the decline of urban historic areas in China is the coexistence of multiple property rights.It also deeply affects conservation and regeneration practice.This paper aims to propose a graphical method that illustrates the association between property rights,space,and resident behavior.Based on typological maps and justified graphs,a three-step method was proposed to visualize the relationships between these three elements.The final graph and quantitative data were used to observe the evolution of the courtyard building from a diachronic perspective,as well as to compare the residential behavior in different types from a synchronic perspective.The results show that following the subdivision of property rights,the building layout become more diverse due to various illegal additions,while the residential behavior within different building types tends to be consistent.Moreover,the study observed the traditional Chinese courtyard buildings’adaptability.The findings contribute to understand the evolution of Chinese urban historic areas and internal motivation,and provide guidance for the conservation and regeneration practice.