PEDESTRIAN SAFETY SYSTEM RS PSS

Abstract

The pedestrian safety system is a complex of constructive solutions, the main purpose of which is to create safe conditions for pedestrians on potentially dangerous sections of highways. The article provides an abbreviated analysis of statistical data on the number of road accidents in the city of Kharkiv in recent years, the result of which justifies the need to update the city's infrastructure in terms of pedestrian safety. Known constructive solutions for arranging pedestrian safety islands have certain shortcomings, which prompted the development of the RS PSS constructive system. A distinctive feature of the proposed system is that it consists of separate elements. The main structural elements of the system are a bollard - a protective element of the road infrastructure, a refuge - a reinforced concrete element into which the bollard and the pedestrian slab are attached. The developed system provides a line of standard sizes of each of the elements, which differ in size and ability to absorb external loads. Depending on the place of installation, the type of highways, and other factors, a certain combination of system elements is used. The work provides a description and justification of constructive solutions of all constituent elements of the RS PSS system. The most responsible part of the system is the attachment of the bollard to the refuge. The structural implementation of this node is made in the form of an embedded part, into which the bollard is directly attached. Special attention is paid to the reliable fastening of the part in the reinforced concrete shelter. The work also presents an analysis of the stress-strain state of the proposed constructive solutions. The calculations were performed in the Autodesk fusion 360 software complex. Based on the results of the calculations, recommendations were made for the use of certain standard sizes of the structures under study. This scientific study is the basis for the development of technical conditions for the manufacture of the RS PSS pedestrian safety system.