刘启旸

刘启旸

北京大学助理教授，博士生导师

先空着后面可以用于图文具体介绍单个研究项目

You can also find my articles on my Google Scholar profile.

The dilemmas of transport equity research in non-Western contexts

Published in Transportation Research Interdisciplinary Perspectives, 2024

This paper critically evaluates the prevailing conceptualisations in transport equity research, emphasising the inadvertent Eurocentrism inherent in many contemporary frameworks. By distinguishing between social equality and social equity, the paper underscores the need for differentiated treatments in varied contexts to truly achieve fairness.

Recommended citation: Liu, Q. (2024). The dilemmas of transport equity research in non-Western contexts. Transportation Research Interdisciplinary Perspectives, 26, 101157.
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Reconceptualising transport-related social exclusion in rural China

Published in Journal of Transport Geography, 2024

In this paper, we propose a conceptual framework to elucidate transport-related social exclusion (TRSE) in rural China. Drawing from participant observations across 146 villages in Guangdong (2643 rural residents), we illuminate the multifaceted nature of TRSE in Chinese villages. In term of interregional transport challenges, rural residents are socially excluded due to inadequate transport infrastructure and services. In contrast, within the microcosm of intravillage transport, residents adeptly harness available transport resources to craft exclusionary strategies.

Recommended citation: Liu, Q., Ma, T., & Liu, Z. (2024). Reconceptualising transport-related social exclusion in rural China. Journal of Transport Geography, 118, 103929.
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Unravelling the spatial directionality of urban mobility

Published in Nature Communications, 2024

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…

Recommended citation: Zhao, P., Wang, H., Liu, Q., Yan, X. Y., & Li, J. (2024). Unravelling the spatial directionality of urban mobility. Nature Communications, 15(1), 4507.
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The living environment and intravillage activity-travel: A conceptual framework based on participant observation in Guangdong, China

Published in Journal of Rural Studies, 2024

We propose a conceptual framework for understanding the complex nature of the correlation between the living environment and intravillage activity-travel. Based on participant observations of 146 villages (2317 rural residents) in Guangdong, China, we find that the rural built environment is predominantly organised by the gemeinschaft cultural environment in which people locate their homes near ancestral halls to maintain the bonds with those who are identified as the Us and to separate themselves from the Other. Together with the impact of the social environment which brings about a dispersed distribution of household farmlands, the phenomenon of home-farmland separation is pervasive. Several transport-related issues are engendered from the rural living environment: (a) distorted time-space for other activities that improve rural residents’ quality of life; (b) land abandonment due to unwillingness to travel …

Recommended citation: Liu, Q., Liu, Z., Yu, Z., & Zhao, P. (2023). The living environment and intravillage activity-travel: A conceptual framework based on participant observation in Guangdong, China. Journal of Rural Studies, 99, 121-133.
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Paper Title Number 4

Published in GitHub Journal of Bugs, 2024

This paper is about fixing template issue #693.

Recommended citation: Your Name, You. (2024). "Paper Title Number 3." GitHub Journal of Bugs. 1(3).
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Policy instruments facilitate China’s COVID-19 work resumption

Published in Proceedings of the National Academy of Sciences, 2023

Governments worldwide have announced stimulus packages to remobilize the labor force after COVID-19 and therefore to cope with the COVID-19-related recession. However, it is still unclear how to facilitate large-scale work resumption. This paper aims to clarify the issue by analyzing the large-scale prefecture-level dataset of human mobility trajectory information for 320 million workers and about 500,000 policy documents in China.

Recommended citation: Zhao, P., Liu, Q., Ma, T., Kang, T., Zhou, Z., Liu, Z., ... & Wan, J. (2023). Policy instruments facilitate China’s COVID-19 work resumption. Proceedings of the National Academy of Sciences, 120(41), e2305692120.
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Exploring the spatial characteristics of the human mobility network in rural settings of China’s Greater Bay Area

Published in Journal of Transport Geography, 2023

Human mobility is an important carrier of material flow, information flow, capital flow, and technology flow between locations. A better understanding of human mobility in rural areas could inform efforts to achieve rural revitalization. However, …

Recommended citation: Liu, Z., Zhao, P., Liu, Q., Cui, Y., Yang, Y., Liu, J., ... & Li, J. (2023). Exploring the spatial characteristics of the human mobility network in rural settings of China's Greater Bay Area. Journal of Transport Geography, 112, 103699.
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No street is an Island: Street network morphologies and traffic safety

Published in Transport Policy, 2023

Network morphological analysis has emerged as a tool to quantify street network structures, providing a nuanced foundation for evaluating their impacts on traffic safety. Yet, there is a lack of disaggregate-level evidence on the spillover effects and spatial heterogeneity of these impacts. This research conducts a comprehensive, disaggregate-level, multi-scale examination on the overall impacts of street network morphologies on traffic safety. Our study focuses on the frequency of traffic injury collisions over a five-year period across more than 190,000 street links in Greater London. We characterise street-link morphologies at local (0–1 km), meso (0–3 km), and city (0–8 km) scales using a spatial design network analysis. For each spatial scale, we apply extended auto-negative binomial models to examine the overall impact of street-link morphological characteristics on the injury collision frequency, considering both …

Recommended citation: An, Z., Xie, B., & Liu, Q. (2023). No street is an Island: Street network morphologies and traffic safety. Transport policy, 141, 167-181.
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Lessons from highway management reforms in a less developed province in China

Published in Research in Transportation Business & Management, 2023

This article describes how national imaginaries of market reforms designed to accommodate fast-growing Chinese regions, collide with embedded formal and informal governance practices in less developed provinces. Whilst much of the literature examines the implications of new infrastructure on regional economics, the management of existing networks dominates decision-making in these more stagnant economies. Using interviews with key stakeholders involved in highway management in Heilongjiang across the provincial and local levels, this paper explores institutional change and persistence using path dependence and junctures as an organising lens. We find that the manner and timing of institutional changes are shaped by the need for political elites in the territorial governing body to reinforce their authority over the vertical functional systems within the jurisdiction. Institutional persistence beneath the …

Recommended citation: Lin, S., Marsden, G., Pangbourne, K., & Liu, Q. (2023). Lessons from highway management reforms in a less developed province in China. Research in Transportation Business & Management, 49, 100989.
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A modal shift due to a free within-destination tourist bus scheme: Multimodality and transport equity implications

Published in Research in Transportation Business & Management, 2023

The idea of the modal shift has been central to transport policymaking in the past few decades. Fare-free public transport (FFPT) schemes are among the potential policy instruments that are expected to promote modal shifts. After the peak of the COVID-19 outbreak, FFPT schemes have been implemented in large tourist destination areas in China to attract visitors. However, although FFPT has been practiced across the globe, its effect on travel modal shifts and transport equity is still under scrutiny.

Recommended citation: Liu, Q., Liu, Z., An, Z., Zhao, P., & Zhao, D. (2023). A modal shift due to a free within-destination tourist bus scheme: Multimodality and transport equity implications. Research in Transportation Business & Management, 48, 100863.
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Using mobile phone big data to discover the spatial patterns of rural migrant workers’ return to work in China’s three urban agglomerations in the post-COVID-19 era

Published in Environment and Planning B: Urban Analytics and City Science, 2023

Knowing how workers return to work is a key policymaking issue for economic recovery in the post-COVID-19 era. This paper uses country-wide time-series mobile phone big data (comparing monthly and annual figures), obtained between February 2019 and October 2019 and between February 2020 and October 2020, to discover the spatial patterns of rural migrant workers’ (RMWs’) return to work in China’s three urban agglomerations (UAs): the Beijing–Tianjin–Hebei Region, the Yangtze River Delta and the Pearl River Delta. Spatial patterns of RMWs’ return to work and how these patterns vary with location, city level and human attribute were investigated using the fine-scale social sensing related to post-pandemic human mobility. The results confirmed the multidimensional spatiotemporal differentiations, interaction effects between variable pairs and effects of the actual situation on the changing patterns of …

Recommended citation: Liu, K., Zhao, P., Wan, D., Hai, X., He, Z., Liu, Q., ... & Yu, L. (2023). Using mobile phone big data to discover the spatial patterns of rural migrant workers’ return to work in China’s three urban agglomerations in the post-COVID-19 era. Environment and Planning B: Urban Analytics and City Science, 50(4), 878-894.
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Uncovering spatial and social gaps in rural mobility via mobile phone big data

Published in Scientific Reports, 2023

Rural mobility inequality is an important aspect of inequality-focused Sustainable Development Goals. To reduce inequality and promote global sustainable development, more insight is needed into human mobility patterns in rural areas. However, studies on rural human mobility are scarce, limiting our understanding of the spatial and social gaps in rural human mobility and our ability to design policies for social equality and global sustainable development. This study, therefore, explores human mobility patterns in rural China using mobile phone data. Mapping the relative frequency of short-distance trips across rural towns, we observed that geographically peripheral populations tend to have a low percentage of short-distance flows. We further revealed social gaps in mobility by fitting statistical models: as travel distances increased, human movements declined more rapidly among vulnerable groups, including …

Recommended citation: Liu, Z., Zhao, P., Liu, Q., He, Z., & Kang, T. (2023). Uncovering spatial and social gaps in rural mobility via mobile phone big data. Scientific Reports, 13(1), 6469.
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