Pedestrian simulation is gaining more and more attention in recent years as demonstrated by the increasing number of pedestrians related paper in the literature. Whether this is for infrastructure design (stations, malls, etc.) or emergency evacuation, all fields are concerned. The different scales in modelling (macroscopic, microscopic) all have benefits and drawbacks. Several models exist in the pedestrian literature, most of them describing behaviours at a microscopic level. But no one deals with the coupling which can allow adaptation of the representation level to local needs. However, hybrid models begin to emerge in the road traffic field. The main goal of this paper is to present a first hybrid pedestrian model, given what exist in the road traffic field, by coupling a microscopic simulation model based on the Social Force Model of Helbing and the macroscopic traffic model LWR adapted to pedestrian simulation. This hybrid model would take the benefits of the two representation scales: being able to simulate a large network and having detailed information on specific nodes. The work is built on two main parts: the coupling of the macroscopic and the microscopic model on one side, and the calibration of the hybridization on another one. In the calibration part, the problems of compatibility is considered to elaborate several conditions at the transitions. This paper is a first work and is aimed at being completed in the future. The case of a unidirectional flow is investigated here and will further be updated to simulate a bidirectional flow.
A first macroscopic-microscopic pedestrian model: Results in the case of a unidirectional flow