Article	Digital modeling of pedestrian flows in the tasks of pre-project analysis and optimization of the urban environment
Authors	Repa D.A., Makeev E.O., Kruchinin A.S. Saint Petersburg State University of Architecture and Civil Engineering, Saint Petersburg, Russia
Abstract	The article presents a method for digital modeling and assessing pedestrian activity within an urban environment, based on the integration of geoinformation data ("2GIS Pro"), three-dimensional modeling (Rhinoceros 3D), and multi-agent parametric simulation algorithms (Grasshopper). The application of the method eliminates the necessity of conducting labor-intensive field surveys for identifying zones of urban planning and functional-planning discrepancy. Testing the method on a representative sample of 20 planning situations in Saint Petersburg confirmed its analytical effectiveness and provided a basis for the classification of various pedestrian behavior scenarios, as well as correlating simulation results with actual physical observations-recorded networks of spontaneous desire lines and areas of soil erosion.
Keywords:	planning structure, pedestrian infrastructure, multi-agent simulation, urban context, geoinformation technologies, Grasshopper, "2GIS Pro"
	Article
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	UDC 711.6-112:004.9 DOI: 10.24412/1998-4839-2026-2-369-384 EDN: KWUTJF
For citation	Repa D.A., Makeev E.O., Kruchinin A.S. Digital modeling of pedestrian flows in the tasks of pre-project analysis and optimization of the urban environment. Architecture and Modern Information Technologies, 2026, no. 2(75), pp. 369-384. Available at: https://marhi.ru/AMIT/2026/2kvart26/PDF/23_repa.pdf DOI: 10.24412/1998-4839-2026-2-369- 384 EDN: KWUTJF
Article	Received by the editors on 24.04.2026; approved after review on 05.06.2026; accepted for publication on 10.06.2026; publication date: 15.06.2026