Household split between rural and urban areas has become an important social issue in China’s urbanization process. This study analysed the influence of household split on migrants’ life satisfaction and the differences between inter- and intra-provincial migrants. Using the data of the 2014 China Migrants Dynamic Survey, we found that the life satisfaction of inter-provincial migrants was significantly lower than that of intra-provincial migrants. For inter-provincial migrants, the life satisfaction of those who moved to the city with underaged children was significantly lower than that of those who left their children in their hometown. Moreover, the life satisfaction of migrants who were concerned about childcare in the hometown was significantly lower than that of those who did not worry about it. Chinese migrants face a dilemma: bringing their family members to the city despite the lack of social welfare support or leaving them in the hometown worrying about family care. We also found that family income does not have a significant moderating effect on the decline in life satisfaction owing to concerns about childcare in the hometown. Future policy concerning China’s population should create external conditions for migrants to accomplish family reunion.

Walking has a positive impact on people’s emotional health. However, in the case of serious air pollution, it is controversial whether walking exercise can still improve individuals’ emotional health. Using data from the 2014 wave of the China Labor-Force Dynamics Survey, this study explored the relationship between walking and emotional health with different levels of environmental pollution. The results indicated that respondents who took regular walks had better emotional health than those who did not walk regularly. For those whose main mode of physical exercise was walking, the average number of walks per week was significantly and positively correlated with their emotional health; however, the average duration of the walk had no significant impact on their emotional health. Moreover, for those whose main mode of physical exercise was walking and who lived in neighborhoods with a polluted environment, regular walking still had a positive impact on their emotional health. This suggests that even if environmental pollution is serious, walking still plays an important role in regulating individuals’ mental health. We propose that in order to promote the emotional health of residents, it is necessary to create more public spaces for outdoor activities and simultaneously increase efforts to control environmental pollution.

Urban commuting, a facet of transportation equity, is an important factor that shapes social equity. Little is known about how commuting practices shape individuals’ perceptions of social equity. To fill this gap, we conducted a multilevel regression using data from the China Labour-force Dynamics Survey 2016. We found that commuters who used private cars had the highest level of perceived social equity, while those who used bicycles had the lowest. Commuting time had a significant negative effect on respondents’ perceived social equity. This study verifies the “commuting paradox” to some extent, as income had no moderating effect on the relationship between commuting time and perceived social equity, which suggests that the social inequity caused by long commutes is not alleviated by higher wages. We also found that the perceived social equity of respondents who commuted on foot or by motorcycle was significantly negatively affected by commuting time. Based on our findings, we propose four ways to alleviate social inequity caused by commuting inequities: consider the commuting time sensitivity of different types of commuters, pay attention to the social equity issues caused by different transportation modes, provide more equitable commuting ways for low-income people, and prioritise public transportation.