Examples of the destruction of bridge structures caused by overloading of the supporting structure, the appearance of aging material and the adverse effects of the operational environment are considered.

In this article the analysis of traffic flows in the central part of the city of Orenburg is given, the most characteristic reasons of formation of traffic jams on city streets of Orenburg in particular are defined. In the overview, the ways to minimize traffic congestion in the form of a more dense analysis of the existing urban development are highlighted.