Citation

Kravchenko P, Plotnikov A, Oleshchenko E. Transp. Res. Proc. 2018; 36: 364-372.

Copyright

(Copyright © 2018, Elsevier Publications)

DOI

10.1016/j.trpro.2018.12.109

PMID

unavailable

Abstract

The paper addresses techniques for applying structural methods to study complex systems of various purposes to substantiate functional organization and control. Those systems include traffic safety assurance (TSA) systemsin general, their individual control channels managing the level of traffic safety ensured by main macro factors affecting it, as well as their individual functional elements. The logic of developing a complete set of causes behind grave road accidents, both primary and final, which is missing in the Russian practice, is presented Typical models of setting up the organization of controlled, functionally compulsory activities of various kinds, and a structural mathematical model developed for a fully observable system that provides an opportunity for the determination of mechanisms underlying the formation and digital evaluation of its main functional properties, such as controllability, accuracy of conversion of input, controlling and disturbing signals into the final, systemic and local results, are provided. A structural and functional model of a nation-wide multi-channel system to ensure traffic safety as the basis to support all functional properties and procedures for breaking-down into various functionally separate subsystems at any level of the hierarchy is described.Main advantages of using methods for the functional and structural modeling of systems, relevant for practical tasks,are shown. Among those advantages are the following: the possibility of using those methods in systems of any category and designation ranging from technical, man-machine, and organizational systems to large systems -- combinations of complex systems having different functional (internal) organization. It is shown that they can be presented in a digital format and used to carry out system researches in the absence of initial information. Organizational management systems, where linguistic variables are taken as functions of transforming input signals into output signals, can be given as an example. Such linguistic variables change in the range of "1,0", boundaries of which correspond to activities performed in accordance with the requirements established or not performed at all.It is shown that,in systems of organizational management,the latter advantage can be implemented rather easily in terms of procedures. Moreover, it is able to ensure the transformation of non-systemic activities on traffic safety assurance into strictly systemic activities, i.e. into transparent, observable, predictable, and capable of continuous improvement activities up to the status where the "zero mortality" on Russian roads is achieved.

Language: en

Keywords

digitatl modeling; functional property (FP) of a system; functional structure; road accident; system approach; traffic safety