Research

Our overarching goal is to explore and understand the complexity of urban mobility systems on the spatio-temporal scale. To do so, we use and develop novel geospatial intelligence (GeoAI) tools to unravel the relevant socio-economic phenomenons of freedom.

Questions of interest include: (i), How does the citizen move inside the city and how is this related to the complex configuration of urban built environment? (ii), What is the recurrent mobility phase seen in correlated urban systems? Is this an exotic long-range entangled state? What is the mechanism of dissipation in that state? (iii), Why is the transition pattern in urban mobility systems so predictable?

Topic I: Collective

We explore and model how people move collectively in urban space to act more intelligently than any person or group has ever done before.

Benefit equilibrium

Understanding operation behaviors of taxicabs in cities by matrix factorization

Route optimization

Preferential visitation

Distance deterrence

Topic II: Complexity

We apply methods at the intersection of complexity science and big data analytics to reveal hidden regularities in the organisation of cities.

Polycentricity

Hub locations

Topic III: Computation

We acquise, integrate, and analyze big and heterogeneous data generated by a diversity of sensors to tackle the major issues that cities face.

Air pollution

<ul> <li>Predicting vehicular emissions in high spatial resolution using pervasively measured transportation data and microscopic emissions model</li>
<li>Escaping from pollution - The effect of air quality on inter-city population mobility in China</li></ul>

Traffic congestion

Land use

A framework for mixed-use decomposition based on temporal activity signatures extracted from big geo-data
Incorporating spatial interaction patterns in classifying and understanding urban land use

Urban expansion

Topic IV: Collaboration

We serve as a research hub and build analytical platforms for collaborative action and innovation to address complex societal problems.

Urban perception

Planning assistance