| 杨龙楠,宋卫国,张俊,张赛男,王巧,姜克淳,许晗.一种基于社会力的行人-自行车混合疏散模型及模拟研究[J].火灾科学,2022,31(3):175-184. |
| 一种基于社会力的行人-自行车混合疏散模型及模拟研究 |
| A pedestrian-bicycle mixed evacuation model based on social force and its simulation |
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| DOI：10.3969/j.issn.1004-5309.2022.03.06 |
| 基金项目:国家自然科学基金(52074252);安徽省重点研发计划(202004a07020052) |
| 作者 | 单位 | | 杨龙楠 | 中国科学技术大学火灾科学国家重点实验室,合肥,230026 | | 宋卫国* | 中国科学技术大学火灾科学国家重点实验室,合肥,230026 | | 张俊 | 中国科学技术大学火灾科学国家重点实验室,合肥,230026 | | 张赛男 | 中国科学技术大学火灾科学国家重点实验室,合肥,230026 | | 王巧 | 中国科学技术大学火灾科学国家重点实验室,合肥,230026 | | 姜克淳 | 中国科学技术大学火灾科学国家重点实验室,合肥,230026 | | 许晗 | 中国科学技术大学火灾科学国家重点实验室,合肥,230026 |
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| 中文关键词: 社会力模型 行人 自行车 混合疏散 疏散效率 |
| 英文关键词:Social force model Pedestrian Bicycle Mixed evacuation Evacuation efficiency |
| 摘要点击次数: 152 |
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| 中文摘要: |
| 当公共安全事件发生时,借助自行车进行疏散是一种重要方式。针对这种情况,开展了行人-自行车混合疏散建模和模拟研究。为了更好量化自行车的超越行为,引入了临时期望运动方向,改变自行车的自驱力,实现对自行车避让超越行为的细致描述;修改了单车模型来更新自行车的运动,建立了一种多层次的自行车运动子模型。将该模型与行人社会力模型相结合,得到一种基于社会力的行人-自行车混合疏散模型“MixSF”。模拟发现,MixSF能够较好地再现混合疏散中的超越行为。在实验条件下,发现个体密度小于0.548人/m2时,自行车占比的增加能加快疏散;相对密度大于0.81时,自行车失去疏散速度优势。 |
| 英文摘要: |
| When a public safety incident occurs, the use of bicycles is an important way for evacuation. In view of this situation, pedestrian bicycle mixed evacuation modeling and simulation were carried out. To better quantify the overtaking behavior of the bicycle, the temporary expected movement direction is introduced to change the self-driving force of the bicycle to achieve a detailed description of overtaking behavior of the bicycle. The bicycle model is modified to update the bicycle movement, and a multi-level bicycle movement sub-model is established. By combining this model with the pedestrian social force model, a pedestrian-bicycle mixed evacuation model "MixSF" based on social force is obtained. The simulation shows that the MixSF can better reproduce the overtaking behavior in mixed evacuation. Under the experimental conditions in this paper, it is found that when the individual density is less than 0.548 pedestrian/, the increase of bicycle proportion can accelerate evacuation. And when the relative density is greater than 0.81, the bicycle loses the advantage of evacuation speed. |
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