The Effect of Multi-directionality on Pedestrian Flow Behavior

Document Type : Research Paper

Authors

1 MSc. Grad., Department of Transportation Engineering, Isfahan Industrial University, Isfahan, Iran

2 Department of Transportation Engineering, Isfahan Industrial University, Isfahan, Iran

Abstract

In this paper, the effect of making flow bidirectional in the main flow characteristics and pedestrian behavior are investigated. The investigation is based on both experimental and empirical data that were extracted from videos taken from Isfahan sidewalks. Results show that, in same density, the pedestrian mean speed in bidirectional flow is more than unidirectional flow. Mean speed difference in two type of flow becomes more considerable when densities are more than 0.6. The mean speed in majority and minority pedestrian group in bidirectional flow with unequal directional ratio is compared. The results show that density of the people walking in the same direction have more effective roll rather than counter flow density in each pedestrian speed. In high densities, the pedestrian try to walk in the trajectory that pedestrian walk ahead of him to reduce conflict. It leads to lane formation. In this paper, these lanes are studied in different densities and ratios. It is observed that number of the lanes increased in bidirectional flows. Using empirical data, fundamental diagrams are drawn for uni- and bidirectional flows. Analyzing pedestrian speed in all sidewalks shows that speed entropy in unidirectional flow is more in comparison to bidirectional ones.

Keywords

References

- Chattaraj, U., Seyfried, A. and Chakroborty, P. (2009) "Comparison of pedestrian fundamental diagram across cultures", Advances in Complex Systems, Vol. 12, No. 3.
- Daamen, W. and Hoogendoorn, S. P. (2003) "Qualitative results from pedestrian laboratory experiments", In E. R. Gales (Ed.), Pedestrian and Evacuation Dynamics, pp. 121-132.
- Daamen, W. and Hoogendoor,n S. P. (2007) "Flow-density relations for pedestrian traffic", In Traffic and granular flow’05, Vol. 5, pp. 315-322.
- Fang, Z., Lo, S.M. and Lu, J. A. (2003) "On the relationship between crowd density and movement velocity", Fire Safety Journal, Vol. 38,  No. 3, pp. 271–283.
- Kim, S., Choi, J., Kim, S. and Tay, R. (2014) "Personal space, evasive movement and pedestrian level of service", Journal of Advanced Transportation, Vol. 48, No. 6, October, pp. 673–684.
- Laxman, K .K., Rastogi, R. and Chandra, S. (2010) "Pedestrian flow characteristics in mixed traffic conditions", Journal of Urban Planning and Development, Vol. 136, No. 1, February, pp.  23–33.
- Rahman, K., Ghani, N. A., Kamil, A. A. and Mustafa, A. (2013) "Weighted regression method for the study of pedestrian flow characteristics in Dhaka", Modern Applied Science, Vol. 7, No. 4, March.
- Seyfried, A., Steffen, B., Klingsch, W. and Boltes, M. (2005) "The fundamental diagram of pedestrian movement revisited", Journal of Statistical Mechanics: Theory and Experiment, Vol. 2005, October.
- Teknomo, K. (2002) "Microscopic pedestrian flow characteristics", Tohoku University, Japan.
- Transportation Research Board (2010)  “Highway capacity manual”, Published by the National Research Council, Washington DC, 2010.
- Zhang, J., Klingsch, W., Schadschneider, A. and Seyfried, A. (2011) "Transitions in pedestrian fundamental diagrams of straight corridors and T-junctions", Journal of Statistical Mechanics: Theory and Experiment, Vol. 2011,  June. 
- Zhang, J. and Seyfried, A. (2013) "Empirical characteristics of different types of pedestrian streams", Procedia Engineering, Vol. 62, pp. 655 – 662.
- Wang, H., Li, J., Chen, Q. and Ni, D. (2011) “Logistic modeling of the equilibrium speed-density relationship”, Transportation Research Part A: Policy and Practice, Vol. 45, No. 6, pp. 554-566.

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History

  • Receive Date: 28 June 2015
  • Revise Date: 04 December 2015
  • Accept Date: 31 January 2016

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