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The worldwide population is aging and countries are facing ongoing challengesin improving the safety of elderly pedestrians. In this work, single-filemovement of the elderly are experimentally compared with that of different agegroups. The findings indicates that the age is not the only factor influencingthe pedestrian dynamics but the heterogeneity of the crowd composition and thefamiliarity among neighboring pedestrians also have significant effects. Theexistence of three regimes in the relationship between headway and speed isconfirmed. In the strong constrained regime, the slope of the relationshipbetween headway and speed of the elderly is bigger than that of the young,which means that the elders are more sensitive to the spatial headway than theyoung when adapting the speeds. However, the difference of the slopes in theweakly constrained regime is small, which indicates a weak dependency betweenage and the adaption time. The elderly need longer headway during thetransformation of the motion state. Besides, the 'active cease' behavior ofpedestrians, which is explained with the least effort principle, is observed inthe experiment. The findings offer empirical data of the elderly under highdensities and can be useful for the improvement of the pedestrian modelling andthe construction of elderly friendly facilities.

Contrastive study on the single-file pedestrian movement of the elderly and other age groups