Spatiotemporal concomitant analysis and epidemic control strategies for commuter pedestrian flow in campus

doi:10.16265/j.cnki.issn1003-3033.2022.09.2737

Abstract

Abstract:

In order to prevent the spread of the epidemic due to the frequent movement of students, densely populated colleges and universities are under pressure during the normalization stage of epidemic prevention and control. A typical scene of student flow in college campuses was selected, and a pedestrian flow model on campus was built in this paper. By introducing the concept of spatiotemporal concomitant, the risk of epidemic transmission caused by pedestrian-to-pedestrian contact was quantified. Based on the spatiotemporal concomitant indicators, simulation calculations were carried out for three campus epidemic prevention and control strategies in Xipu Campus of Southwest Jiaotong University, including opening all passageways in the dormitory park, designing a new road between different areas, and classes in batches. Comparing and analyzing the simulation results, it can be found that the declines of the spatial concomitant indicators of the three strategies are: 12.12%, 6.08%, and 74.02%, and the declines of the temporal concomitant indicators are 30.49%, 0.16%, and 60.78%, respectively. When the three strategies are implemented at the same time, the declines of the spatial concomitant indicators and temporal concomitant indicators are 82.37% and 76.63% respectively.

Key words: campus, pedestrian flow, spatiotemporal concomitant, AnyLogic, corona virus disease 2019 (COVID-19), epidemic prevention

MA Jian, LI Huiwen, SONG Dandan, CHEN Juan. Spatiotemporal concomitant analysis and epidemic control strategies for commuter pedestrian flow in campus[J]. China Safety Science Journal, 2022, 32(9): 86-93.

Figures/Tables 11

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宿舍楼号	1	2	3	4	5	6	7	8	9	10	11
平均上课人次	892	689	892	689	388	320	262	456	369	388	369
比例/%	7.61	5.88	7.61	5.88	3.31	2.73	2.24	3.89	3.15	3.31	3.15
宿舍楼号	12	13	14	15	16	17	18	19	20	21	22
平均上课人次	417	417	310	921	465	921	465	921	465	233	465
比例/%	3.56	3.56	2.65	7.86	3.97	7.86	3.97	7.86	3.97	1.99	3.97

教学楼号	1	2	3	4	5	6	7	8	9
平均上课人次	654	5 171	673	1 384	265	475	504	1 027	1 561
比例/%	5.58	44.14	5.75	11.81	2.26	4.05	4.30	8.77	13.33

区域	北区宿舍区	南区宿舍区	北区教学区	南区教学区	道路区	总计
空间伴随点数量/个	109 480	24 159	9 416	58 156	27 4115	475 326
比例/%	23.03	5.08	1.98	12.23	57.67	100

区域	北区宿舍区	南区宿舍区	北区教学区	南区教学区	道路区	总计
总伴随时间/s	10 200	1 714	395	3 394	21 430	37 133
比例/%	27.47	4.62	1.06	9.14	57.71	100