Papers by Keyword: Social Force

Abstract: During walking, there exist many passageways that make pedestrian flow cross or walk in the other line, resulting in a mixture of pedestrian flow feature in pedestrian area and affecting the pedestrian travel time, traffic capacity and service levels of interwoven region. To solve this problem, this paper establishes the model of pedestrians beyond of basing on the social force model which is on the basis of the traditional model. With the aid of MATAB software, though the comparison of pedestrian passing time in urban rail channel, we verified the improved model in this paper is superior to the previous model and more realistic.

Abstract: The primary goal of emergency evacuation for pedestrians is evacuating as many people as possible to safe areas in a shortest time when the accident occurred. And the primary factor of pedestrian evacuation is egress. According to the literature, we can know that the reasonable design of the evacuation corridor and the right guidance to pedestrians are very important, and analyzed main affect factors to the evacuation corridor, which affect of the evacuation speed for corridor at different pedestrian flows intensity, the width of evacuation corridor, setting canalization to corridor and the size of space of corridor peripheral. This paper use VISSIM simulation software to study on pedestrian flows evacuation. So the formulation for pedestrian evacuation program should consider a variety of elements for the design of the evacuation egress and corridors to increase efficiency and reliability for pedestrian evacuation.

Abstract: Abstract. Lateral pedestrian loads and flexible footbridge form a dynamic interaction system, which has a special lock-in phenomenon and results the instability of the dynamic system when the pedestrian number reaches certain critical value. A simplified theoretical equation to model the dynamic interaction system and to estimate critical pedestrian number is proposed. The lateral pedestrian loads resulted by structural vibration is first analyzed from a view point of social force model. And then, combined with structural vibration equation, the control differential equation for describing the dynamic interaction system is proposed. The control equation explains why the lock-in phenomenon is resulted and how to estimate the critical pedestrian number. Two typical footbridges are investigated and the results show that critical pedestrian number estimated by the model is more close to those by field observation.