12. THE CONCEPT OF CREATING RASTER ACCESSIBILITY MAPS FOR MULTI-STOREY BUILDINGS
The paper presents proposals for solving the problem of carrying out a comprehensive analysis of the evacuation process running on many storeys of buildings. The difficulty arises from the use of raster model, which as an extension of the concept of occupancy grid used in mobile robotics allows modeling of movement on the entire surface of rooms, but is limited to one storey. The raster model has replaced here the graph usually used in applications related to evacuation and, also, navigation. Due to the location of staircases, in many cases in places surrounded by other rooms, it is often impossible to connect, even with paths of cell, individual floors into a single raster, which was the author's first idea to cover the entire building. Finally, it was proposed to introduce “common points”, that could be identified on two adjacent storeys. On the lower floor it would be a place where a person descends from the upper storey, while on the upper storey it would be place of leaving it during the movement towards the exit. At the same time, such a point on the upper storey would be the starting point of the analysis, playing the same role as the exit from the building on the ground floor. This allowed transferring information about the distance of reaching the evacuation exit to the next floors covered by the analysis. Thus, it would be possible to take full advantage of the benefits of the raster model, such as possibility to consider obstacles that impede movement.
Listing Details
- AuthorPiotr Cichociński
- AffiliationAGH University of Science and Technology, Krakow
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