Perception of density by pedestrians on urban paths: an experiment in virtual reality (original) (raw)

Abstract

This paper presents a virtual reality experiment in a controlled visualization laboratory. The study explores the impact of morphology on the perceived density by participants along pedestrian paths. The issue addressed is the intensification of existing urban centres, where overcrowding may diminish their viability. The basic hypothesis is that increased visibility in a given urban space will be evaluated with a lower perceived density, and in some cases, a preferred view will decrease the participant's perceived density. This research can contribute to future research and practice for the planning and design of sustainable urban environments for the benefit of pedestrian users. Introduction: movement along pedestrian paths and the phenomenon of urban intensification This paper focuses on perceived density, as influenced by the built form in the city, while in movement on a pedestrian urban path. The intensification of the existing urban fabric is an accepted strategy for preventing urban sprawl and creating compact accessible city centres. Vibrant existing historical urban centres tend to attract pedestrians, not only for their diverse and colourful activities, but also for their attractive physical environment. Thus, changing or adding structures, reducing unbuilt space or demolishing small buildings and replacing them with high-rise structures, should be considered carefully and be implemented with foresight and discretion. Intensification is synonymous with the addition of storeys and the construction of towers, actions likely to both change the visual setting for the urban user and influence the perception of space and perceived density. Most intensification processes are governed by strict rules, including setbacks from existing street facades, and the creation of defined low-built mass to fit the human scale, setting back the tall-built mass. Nevertheless, the results of these intensification initiatives may still block visibility to the sky and distant view perspectives, and can alter the sense of scale for pedestrians, changing their perception of space. This, in turn, could negatively influence the attractiveness of these environments. In this paper, whilst the virtual reality variations refer to a single realistic environment going through such a process of intensification, they can significantly reflect on many such environments around the world.

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References (41)

  1. Alexander, C. 1987. A New Theory of Urban Design. New York, NY: Oxford University Press.
  2. Adkins, A., J. Dill, G. Luhr, and M. Neal. 2012. "Unpacking Walkability: Testing the Influence of Urban Design Features on Perceptions of Walking Environment Attractiveness. " Journal of Urban Design 17 (4): 499-510.
  3. Arnold, H. 1993. Trees in Urban Design. New York: Van Nostrand Reinhold.
  4. Bishop, I., J. R. Wherrett, and D. R. Miller. 2001. "Assessment of Path Choices on a Country Walk Using a Virtual Environment. " Landscape and Urban Planning 52 (4): 225-237.
  5. Borukhov, E. 1978. "Trade-off between Density and Other Objectives: A Re-Examination of Planning Norms. " GeoJournal 2 (1): 71-80.
  6. Bulthoff, H. H., and H. A. H. C. van Veen. 2001. "Vision and Actions in Virtual Environments: Modern Psychophysics in Spatial Cognition Research. " In Vision and Attention, edited by M. Jenkin and L. Harris, 233-252. New York, NY: Springer.
  7. Cao, X., S. L. Handy, and P. L. Mokhtarian. 2006. "The Influences of the Built Environment and Residential Self-Selection on Pedestrian Behavior: Evidence from Austin, TX. " Transportation 33 (1): 1-20.
  8. Churchman, A. 1999. "Disentangling the Concept of Density. " Journal of Planning Literature 13 (4): 389-411.
  9. Conroy-Dalton, R. 2001. Spatial Navigation in Immersive Virtual Environments. PhD diss. Faculty of the Built Environment, University College London.
  10. Dooley, K. 2002. "Simulation Research Methods. " In Companion to Organizations, edited by J. Baum, 829-848. London: Blackwell.
  11. Ewing, R., and S. Handy. 2009. "Measuring the Unmeasurable: Urban Design Qualities Related to Walkability. " Journal of Urban Design 14 (1): 65-84.
  12. Feitelson, E. 1992. "Consumers Preferences and Willingness to Pay for Water-Related Residences in Non-Urban Settings: A Vignette Analysis. " Regional Studies 26 (1): 49-68.
  13. Fisher-Gewirtzman, D. 2015. "Is Perception Quantifiable? Combining Measurements of Space with Quality of the View". ACE2015. 3rd Annual International Conference on Architecture and Civil Engineering, Singapore. Proceedings 2: 630-637.
  14. Fisher-Gewirtzman, D. 2016a. "The Association between Perceived Density in Minimum Apartments and Spatial Openness Index Three-Dimensional Visual Analysis. " Environment and Planning B; Planning and Design. 44 (4): 764-795.
  15. Fisher-Gewirtzman, D. 2016b. "Integrating Weighted Views to Quantitative 3D Visibility Analysis as a Predictive Tool for Perception of Space." Environment and Planning B; Planning and Design. doi: 10.1177/0265813516676486.
  16. Fisher-Gewirtzman, D. 2017. "Can 3D Visibility Calculations along a Path Predict the Perceived Density of Participants Immersed in a Virtual Reality Environment?" 11th Space Syntax Symposium, Lisbon, 3-7 July 2017)
  17. Fisher-Gewirtzman, D., M. Burt, and Y. Tzamir. 2003. "A 3-D Visual Method for Comparative Evaluation of Dense Built-up Environments. " Environment and Planning B: Planning and Design 30 (4): 575-587.
  18. Forsyth, A., and M. Southworth. 2008. "Cities Afoot-Pedestrians, Walkability and Urban Design. " Editorial, Journal of Urban Design 13 (1): 1-3.
  19. Gunnarsson, B., I. Knez, M. Hedblom, and Å. Sang. February 2017. "Effects of Biodiversity and Environment-Related Attitude on Perception of Urban Green Space. " Urban Ecosystems 20 (1): 37-49.
  20. Handy. S., X. Cao and P. L. Mokhtarian. 2007. "Self-Selection in the Relationship between the Built Environment and Walking: Empirical Evidence from Northern California. " Journal of the American Planning Association 71 (1): 55-74 | Published online: 26 Nov 2007.
  21. Hedman, R., and A. Jaszewski. 1984. Fundamentals of Urban Design. Chicago: American Planning Association.
  22. Jacobs, A. 1993. Great Streets. Cambridge, MA: MIT Press.
  23. Jacobs, A., and D. Appleyard. 1987. "Toward an Urban Design Manifesto. " Journal of the American Planning Association 53 (1): 112-120.
  24. Kuliga, S. F., T. Thrash, R. Dalton, and C. Hölscher. 2015. "Virtual Reality as an Empirical Research Tool -Exploring User Experience in a Real Building and a Corresponding Virtual Model. " Computers, Environment and Urban Systems 54: 363-375.
  25. Kultsova, A., B. Tuncer, and G. Schmitt. 2013. "Visibility Analysis for 3D Urban Environments: Research Development and Practical Application. " Models of Computation: Human Factors 2-Computation and Performance-ECAADe 375-383.
  26. Lange, E., and P. V. Schaeffer. 2001. "A Comment on the Market Value of a Room with a View. " Landscape and Urban Planning 55 (2): 113-120.
  27. Mavridou, M., C. Hoelscher, and C. Kalf. 2009. "The Impact of Different Building Height Configurations on Navigation and Wayfinding. " In D. Koch, L. Marcus, & J. Steen (Eds.), Proceedings of the 7th International Space Syntax Symposium, 072:1-072:11. Stockholm: KTH.
  28. Mavridou, M. 2012. "Perceptions of Three-Dimensional Urban Scale in an Immersive Virtual Environment. " Environment and Planning B: Planning and Design 39 (1): 33-47.
  29. Mehta, V. 2008. "Walkable Streets: Pedestrian Behavior, Perceptions and Attitudes. " Journal of Urbanism: International Research on Placemaking and Urban Sustainability 1 (3): 217-245 | Published online: 26 Nov 2008
  30. Natapov, A., and D. Fisher-Gewirtzman. 2016. "'Visibility of Urban Activities and Pedestrian Routes: An Experiment in a Virtual Environment' . Computers. " Computers, Environment and Urban Systems 58: 60-70.
  31. Ostoića, S. K., C. Cecil, K. van den Boschb, D. Vuletićc, M. Stevanov, I. Živojinović, S. Mutabdžija-Bećirović, et al. 2017. "Citizens' Perception of and Satisfaction with Urban Forests and Green Space: Results from Selected Southeast European Cities. " Urban Forestry & Urban Greening 23: 93-103.
  32. Paar, P. 2006. "Landscape Visualizations: Applications and Requirements of 3D Visualization Software for Environmental Planning. " Computers, Environment and Urban Systems 30 (6): 815-839.
  33. Portman, M., A. Natapov, and D. Fisher-Gewirtzman. 2015. "To Go Where No Man Has Gone before: Virtual Reality in Architecture, Landscape Architecture and Environmental Planning. " Computers, Environment and Urban Systems (CEUS) Special Issue on 'The Use of Virtual Reality for Environmental Representations' 54: 376-384.
  34. Shushan, Y., J. Portugali, and E. Blumenfeld-Lieberthal. 2016. "Using Virtual Reality Environments to Unveil the Imageability of the City in Homogenous and Heterogeneous Environments. " Computers, Environment and Urban Systems 58: 29-38.
  35. Stamps, A. E. 2011. "Effects of Area, Height, Elongation, and Color on Perceived Spaciousness. " Environment and Behavior 43 (2): 252-273.
  36. Trancik, R. 1986. Finding Lost Space: The Theories of Urban Spatial Design. New York, NY: Van Nostrand Reinhold.
  37. Tahrani, S., and G. Moreau. 2008. "Integration of Immersive Walking to Analyze Urban Daylighting Ambiences. " Journal of Urban Design 13 (1): 99-123.
  38. Wiener, J. M., and G. Franz. 2005. "Exploring Isovist-based Correlates of Spatial Behaviour and Experience". Proceedings of the 5th International Space Syntax Symposium.
  39. Yuan, S., S. Song, and Y. Zhang. 2014. "Experimental Research in Urban Spatial Cognition by Using Virtual Reality Technology. " Athens of Technology Engineering 1 (1): 19-32.
  40. Zacharias, J. 2001. "Pedestrian Behavior and Perception in Urban Walking Environments. " Journal of Planning Literature 16 (1): 3-18.
  41. Zacharias, J., A. Stamps, and A. 2004. "Perceived Building Density as a Function of Layout. " Psychological Reports: Perceptual and Motor Skills 98: 777-784.