This paper aims to contribute to existing literature on the effects of the built environment on bicycle commuting, examining the case of Beijing. A group of city-wide random samples is analysed. The analysis shows that bicycle commuting is significantly associated with some features of the built environment when many demographic and socioeconomic factors are taken into account. Higher destination accessibility, a higher number of exclusive bicycle lanes, a mixed environment and greater connectivity between local streets tend to increase the use of the bicycle. These effects differ across gender, age and income groups. However, residential density has no significant effects on the use of a bicycle for commuting, while higher levels of public transit services tends to decrease rather than increase bicycle commuting. The results imply that the drastic changes in the built environment are a major reason for the demise of ‘the kingdom of bicycles’ in China.

The increasing emission of transport-related pollutants has become a key issue in relation to climate change mitigation and the improvement of air quality in China's cities. This article aims to examine the effects of changes in the built environment on transportation by examining the case of Beijing. Looking at household survey data, the analysis found that individual workers’ commuting behavior (concerning travel destination, mode choice and travel time) is significantly related to some aspects of the built environment when socioeconomic and demographic characteristics are taken into account. There are obvious differences in the effects of the built environment on commuting across income groups, occupations and industries.

Large-scale disasters can disproportionately impact different population groups, causing prominent disparity and inequality, especially for the vulnerable and marginalized. Here, we investigate the resilience of human mobility under the disturbance of the unprecedented ‘720’ Zhengzhou flood in China in 2021 using records of 1.32 billion mobile phone signaling generated by 4.35 million people. We find that although pluvial floods can trigger mobility reductions, the overall structural dynamics of mobility networks remain relatively stable. We also find that the low levels of mobility resilience in female, adolescent and older adult groups are mainly due to their insufficient capabilities to maintain business-as-usual travel frequency during the flood. Most importantly, we reveal three types of counter-intuitive, yet widely existing, resilience patterns of human mobility (namely, ‘reverse bathtub’, ‘ever-increasing’ and ‘ever-decreasing’ patterns), and demonstrate a universal mechanism of disaster-avoidance response by further corroborating that those abnormal resilience patterns are not associated with people’s gender or age. In view of the common association between travel behaviors and travelers’ socio-demographic characteristics, our findings provide a caveat for scholars when disclosing disparities in human travel behaviors during flood-induced emergencies.

Our existing knowledge of the links between urban growth and commuting patterns are dominated by cases from developed countries. This paper examines the impact of urban growth on workers' commutes using the case of Beijing, which is undergoing rapid economic and spatial restructuring. The results of an analysis of household survey data show that clustered and compact urban development in planned sub-centres is likely to reduce suburban workers' need for a long-distance commute to the city centre when the workers' socio-economic characteristics, the level of transport accessibility and household preferences for residential location are taken into account. Workers employed in the manufacturing sector tend to have shorter commutes and travel within the planned suburban sub-centres. This reveals that the decentralization of employment in the manufacturing sector provides more opportunities to enhance the spatial matches between household residential and job location choices. Household preferences for residential location have an effect on commuting patterns, and high-income workers are likely to accept longer commutes in order to fulfil their residential preferences. Dramatic urban restructuring, in conjunction with changes in lifestyle, is creating new commuting patterns in the rapidly growing cities of China. Resumen El estado actual del conocimiento sobre los vínculos entre el crecimiento urbanístico y los patrones de desplazamiento al trabajo está dominado por ejemplos de países desarrollados. Este artículo examina el impacto del crecimiento urbano en los desplazamientos al trabajo en una ciudad como Pekín, la cual está siendo objeto de una rápida reestructuración económica y espacial. Los resultados del análisis de datos de un muestreo de hogares mostró que es probable que un desarrollo urbano compacto y agrupado en torno a sub-centros planificados a propósito de este modo reduzca la necesidad de largos desplazamientos al trabajo hasta el centro de la ciudad, si se tienen en cuenta las características socioeconómicas de los trabajadores, la facilidad de acceso a transporte y las preferencias de cada hogar en cuanto a la zona residencial. Los trabajadores empleados en el sector manufacturero tienden a realizar desplazamientos más cortos y a viajar dentro de los sub-centros suburbanos planificados. Esto revela que la descentralización del empleo en el sector manufacturero proporciona más oportunidades de mejorar la correspondencia espacial entre la elección de la zona residencial y la del puesto de trabajo. Las preferencias familiares en cuanto a la zona residencial tienen un efecto en los patrones de desplazamiento al trabajo, siendo más probable que los empleados con ingresos más altos estén dispuestos a realizar desplazamientos más largos a cambio de satisfacer sus preferencias residenciales. Una dramática reestructuración urbana, junto con cambios en el estilo de vida, está creando nuevos patrones de desplazamiento al trabajo en las ciudades chinas de rápido crecimiento.

As it is central to sustainable urban development, urban mobility has primarily been scrutinised for its scaling and hierarchical properties. However, traditional analyses frequently overlook spatial directionality, a critical factor in city centre congestion and suburban development. Here, we apply vector computation to unravel the spatial directionality of urban mobility, introducing a two-dimensional anisotropy-centripetality metric. Utilising travel data from 90 million mobile users across 60 Chinese cities, we effectively quantify mobility patterns through this metric, distinguishing between strong monocentric, weak monocentric, and polycentric patterns. Our findings highlight a notable difference: residents in monocentric cities face increasing commuting distances as cities expand, in contrast to the consistent commuting patterns observed in polycentric cities. Notably, mobility anisotropy intensifies in the outskirts of monocentric cities, whereas it remains uniform in polycentric settings. Additionally, centripetality wanes as one moves from the urban core, with a steeper decline observed in polycentric cities. Finally, we reveal that employment attraction strength and commuting distance scaling are key to explaining these divergent urban mobility patterns. These insights are important for shaping effective policies aimed at alleviating congestion and guiding suburban housing development.