Shoufeng Ma

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In transportation networks, traditional fixed sensors are used to monitor the operation of transportation systems. However, fixed sensors cannot move once they are installed. In this paper, the motion ability of traffic sensors is introduced to improve the performance of transportation network surveillance. A mobile traffic sensor routing problem is(More)
CRM is an innovative marketing strategy centered on customer and a comprehensive management and technological method. The application of Data Mining (DW) technology in CRM plays an important role in improving the level and efficiency of CRM in commercial banks. This paper mainly introduces structures of CRM in commercial banks and DM technology, and(More)
With the accelerating process of urbanization, developing countries are facing growing pressure to pursue energy savings and emission reductions, especially in urban passenger transport. In this paper, we built a Beijing urban passenger transport carbon model, including an economy subsystem, population subsystem, transport subsystem, and energy consumption(More)
On the basis of the dynamic traffic network equilibrium model under open-loop information structure presented by Byung-Wook Wie, this paper formulates a non-cooperative N-person nonzero-sum differential game model under close-loop information structure. It also takes into account the network with multiple origin-destination pairs and interaction between two(More)
We theoretically investigate the mechanism of the open boundary conditions in the deterministic Nagel-Schreckenberg model, which was studied mainly by numerical simulations before. Our studies concentrate on the open boundaries and have found an effective approach for deducing the analytical expression of inflow. We also raise a removal rule which is(More)
This paper firstly show that a recent model (Tian et al., Transpn. Res. B 71, 138-157, 2015) is not able to well replicate the evolution concavity in traffic flow, i.e. the standard deviation of vehicles increases in a concave/linear way along the platoon. Then we propose an improved model by introducing the safe speed, the logistic function of the(More)
Closed-Circuit Television (CCTV) images are potential data source of Intelligent Transportation Systems (ITS). However, these images sequence's interval is from 2s to 300s, so it is difficult to extract background from these images sequences by conventional methods, let alone to directly estimated traffic information. In order to make use of such online low(More)