Shanghai Urban Construction Design and Research Institute (Group)

Variation in Speed Distributions with Local Truck Proportion in Mixed Freeway Traffic: A Shapley Decomposition

Variations in the overall speed distribution of mixed freeway traffic may reflect changes in vehicle-type weights, vehicle-type-specific speed distributions, or both. Using the highD vehicle trajectory dataset, we analyzed 50-m × 30-s spatiotemporal cells, with 60-s cells used fo...

How Industry Types Shape Commuting and Non-Commuting Network Centrality: A Geographical Detector Analysis of Shanghai and Its Adjacent Areas

The polycentric spatial structure of metropolitan areas has become a frontier topic in urban studies. Yet existing research has largely remained descriptive regarding commuting networks, with limited investigation into how different industry types are associated with commuting an...

Shock–vortex interaction in transonic flow around a circular cylinder

Two-dimensional direct numerical simulations are performed to investigate shock–vortex interactions in transonic flow around a circular cylinder at R e D = 2000 and M a = 0.75 , 0.80, and 0.85. The wake-vortex evolution exhibits a quasi-periodic organization defined with referenc...