title: Active and reactive behaviour in human mobility: the influence of attraction points on pedestrians.
abstract: Human mobility is becoming an accessible field of study, thanks to the progress and availability of tracking technologies as a common feature of smart phones. We describe an example of a scalable experiment exploiting these circumstances at a public, outdoor fair in Barcelona (Spain). Participants were tracked while wandering through an open space with activity stands attracting their attention. We develop a general modelling framework based on Langevin dynamics, which allows us to test the influence of two distinct types of ingredients on mobility: reactive or context-dependent factors, modelled by means of a force field generated by attraction points in a given spatial configuration and active or inherent factors, modelled from intrinsic movement patterns of the subjects. The additive and constructive framework model accounts for some observed features. Starting with the simplest model (purely random walkers) as a reference, we progressively introduce different ingredients such as persistence, memory and perceptual landscape, aiming to untangle active and reactive contributions and quantify their respective relevance. The proposed approach may help in anticipating the spatial distribution of citizens in alternative scenarios and in improving the design of public events based on a facts-based approach.
authors: Departament de Física Fonamental , Universitat de Barcelona. Martí i Franqués 1 , 08028 Barcelona, Spain.
authors: M
authors: 0000-0002-8488-1954
authors: M
authors: Gutiérrez-Roig
authors: Departament de Física Fonamental, Universitat de Barcelona. Martí i Franqués 1, 08028 Barcelona, Spain; Universitat de Barcelona Institute of Complex Systems UBICS, 08028 Barcelona, Spain.
authors: O
authors: O
authors: Sagarra
authors: Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Accés a la Cala Sant Francesc, 17300 Blanes, Spain; Centre de Recerca Ecològica i Aplicacions Forestals (CREAF), Campus de Bellaterra (UAB) Edifici C, 08193 Cerdanyola del Vallès, Spain.
authors: A
authors: A
authors: Oltra
authors: Centre de Recerca Ecològica i Aplicacions Forestals (CREAF) , Campus de Bellaterra (UAB) Edifici C , 08193 Cerdanyola del Vallès, Spain.
authors: J R B
authors: JR
authors: Palmer
authors: Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Accés a la Cala Sant Francesc, 17300 Blanes, Spain; Centre de Recerca Ecològica i Aplicacions Forestals (CREAF), Campus de Bellaterra (UAB) Edifici C, 08193 Cerdanyola del Vallès, Spain; ICREA, Passeig Lluis Companys 23, 08010 Barcelona, Spain.
authors: F
authors: F
authors: Bartumeus
authors: Departament de Física Fonamental, Universitat de Barcelona. Martí i Franqués 1, 08028 Barcelona, Spain; Universitat de Barcelona Institute of Complex Systems UBICS, 08028 Barcelona, Spain.
authors: A
authors: A
authors: Díaz-Guilera
authors: Departament de Física Fonamental, Universitat de Barcelona. Martí i Franqués 1, 08028 Barcelona, Spain; Universitat de Barcelona Institute of Complex Systems UBICS, 08028 Barcelona, Spain.
authors: J
authors: J
authors: Perelló
keywords: behavioural experiments; computational social science; human mobility; random walk