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• W2897064799 abstract "In 2016, pedestrians accounted for the largest share within fatalities of vulnerable roadusers in traffic inside the European Union with a 21% fatality rate among all road users [1].Active safety systems aim at avoiding crashes with pedestrians, however, there is a need todevelop systems which are accepted by drivers, i.e. systems which are able to avoid collisionswhile keeping false alarm rate as low as possible. There has been a substantial amount ofprevious research with focus on driver interaction with pedestrians in crossing situations,but longitudinal scenarios have not gained the same amount of attention in research yet.This thesis aims at exploring the interaction between drivers and pedestrians in longitudinalscenarios, i.e. when drivers overtake or pass a pedestrian.To allowan analysis of driver behaviour, two data sets of realworld overtaking and passingmanoeuvres were used. The first data set was extracted from the latest European naturalisticdriving study, UDRIVE, and contained 77 overtaking events which occurred on rural roadsin France. The second data set was collected within this thesis on a rural road in Swedenwith a custom-made data logger. This second data set included 630 overtaking events whichwere collected by a pedestrian wearing the data logger. During the field test, experimentalfactors such as presence of oncoming traffic, walking direction of the pedestrian and lateralposition of the pedestrian were varied.Results from the UDRIVE data set indicate that, in presence of oncoming traffic, driversstart to steer away earlier from a collision path than when oncoming traffic is absent. Fromfield test data, a significant difference in minimum clearance between driver and pedestrianis shown for the factors oncoming traffic and walking direction. The implication is thatdrivers are willing to give less space to pedestrians in presence of oncoming traffic as well aswhen pedestrians are walking towards them. Almost 50% of the drivers in the field testsconducted in Sweden and about 90% of the french drivers from the UDRIVE data set keptless than 1.5 m distance to the pedestrian, less than the minimum distance set by policiesin other European countries [2]. Hence, infrastructure especially in rural roads should bedesigned to allow safe and comfortable collision avoidance among road-users, especially incombination with pedestrians. Results for distribution of time to collision when steeringaway go in accordance to the corresponding Euro NCAP scenario. Bayesian linear regressionwas applied to model the event describing metrics minimum clearance and time to collisionat the moment of steering away. Results show that the models are able to predict posteriordistributions of those metrics as well as estimates and uncertainty of changes under theinfluence of certain factor combinations." @default.
• W2897064799 created "2018-10-26" @default.
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• W2897064799 date "2018-01-01" @default.
• W2897064799 modified "2023-09-26" @default.
• W2897064799 title "Modelling driver behaviour in longitudinal vehicle-pedestrian scenarios - Analysis of driver comfort zone boundaries from naturalistic driving data and field tests" @default.
• W2897064799 hasPublicationYear "2018" @default.
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