Pedestrians are the most vulnerable road users. For evaluating and modifying pedestrian safety in unsignalized crosswalks,the first important issue is to identify and explore factors affecting the interaction behavior of pedestrians andvehicles in conflict areas. By analyzing those factors and determining how they affect road user's behavior, we canrepresent the plans and proc...

Most of these accidents occur as pedestrians try to evacuate the facility in panic mode. Thus, increasing attention has been given to planning for the evacuation of these facilities by considering of all possible emergencies. The objective is to minimize the period required to evacuate a facility while ensuring the safety of all pedestrians. Evaluation of the effectiveness of an evacuation plan...

The study of human-robot interaction (HRI) has received increasing research attention for robot navigation in pedestrian crowds. In this paper, we present empirical study of pedestrian-robot interaction in an uni-directional exit corridor. We deploy a mobile robot moving in a direction perpendicular to that of the pedestrian flow, and install a pedestrian motion tracking system to record the co...

â understanding the flow behaviour in a gas well is crucial for future production strategies, obtaining bottomhole conditions from wellhead production data, analyzing production data and estimating reservoir properties. in this work, the pressure profile and flow regime are studied on four wells of a multi-well, multi-layer gas-condensate reservoir, producing at high rate. the wells are deviate...

The focus of the thesis is the utilization of the data collected using state-of-the-art tracking technologies for the characterization and modeling of pedestrian movements. In this context, the main objectives are the development of (i) data-driven definitions of fundamental variables and (ii) data-inspired mathematical formulations of fundamental relationships characterizing pedestrian traffic...

Group Behavior Modeling is a subset of the simulation field that attempts to model a large system of entities and their interactions with one another. A typical entities state is dependent not only on its environment, but also on other entities within its locality. Group behavior therefore exhibits an example of emergence: where complex global behaviors can arise from the interaction of simple ...

We propose a novel approach to pedestrian flow characterization. The definitions of density, flow and velocity existing in the literature are extended through a data-driven spatio-temporal discretization framework. The framework is based on three-dimensional Voronoi diagrams. The new definitions are (i) independent from an arbitrarily chosen discretization; (ii) appropriate for the multi-direct...

The average pedestrian flow through an exit is one of the most important indices in evaluating pedestrian dynamics. In order to study the flow in detail, the floor field model, which is a crowd model using cellular automata, is extended by taking into account realistic behavior of pedestrians around the exit. The model is studied by both numerical simulations and cluster analysis to obtain a th...

Modeling pedestrian traffic at the micro-level is a relatively young research area. The key to success is driven on the ability to appropriately model crowd behavior that arises in pedestrian traffic. One method of validation for such simulation models examines their ability to reproduce commonly observed crowd behavior. This paper demonstrates how commonly observed crowd behavior emerges from ...