Violation of the use of traffic regulation means as a cause of a traffic accident

This article provides statistical data on the number of road accidents and their consequences (deaths and/or injuries) in all regions of Ukraine in 2021 as compared to the same period in 2020. Regions with a decrease in road traffic accident rates (Zakarpattya region, 9.6% decrease) and their percentage increase (Zhytomyr region, 56.1% increase) are highlighted. Based on the analysis of statistical data, it is estimated that the number of road traffic accidents in the country during this period increased by 19.6%. But as a positive phenomenon, the number of injuries and/or fatalities in these road accidents decreased by 17.2%. The article analyses and gives concrete examples of the use of some legally adopted road traffic control devices in the regional center of Ukraine - Zhytomyr city (traffic lights, road signs and road markings). Shows incidents of their use which are characterized by violations of traffic rules (Sections 8.1., 8.2, 8.3, 8.4, 8.7, Sections 33 "Traffic signs" and 34 "Traffic lanes"), DSTU 2587:2021 "Traffic lanes. General Technical Conditions", DSTU 4100:2021 "Road Safety. Road Signs". At the same time there are situations when road signs are in contradiction, which is categorically unacceptable. It also shows the cases where traffic signs are installed in a shape and design that is not included in traffic regulations and the relevant standard. It was concluded that the use of the above road traffic control devices in violation of the conditions of their installation (application) can lead to misinformation of road users, create additional informational and emotional pressure on them, contribute to increased fatigue, which consequently increases the probability of occurrence of road accidents and increases their importance.

Improvement of the traction current asymmetry control system

The article presents approaches that allow modernizing the system for monitoring the asymmetry of the traction current. The existing systems of technical diagnostics and monitoring of the technical condition of automation and telemetry control devices, which have found wide application on the railways of JSC Russian Railways, do not allow monitoring the condition of adjacent railway transport infrastructure systems that affect the performance of railway automation and telemetry control devices. Besides, information about the condition of the object being diagnosed is sent to the monitoring center, while the operational and repair personnel do not have the necessary information and start working only after receiving information about the malfunction from the dispatcher of the monitoring center. The mobile device, proposed in the article, allows reducing the time necessary for obtaining information about the unserviceable condition of the railroad line. The article presents the analysis of gadgets planned for use in a mobile device, and the concept of the interface of the mobile application for technicians. It is noted that the hardware intended for use in a mobile device must provide protection against unauthorized access to the application, as well as have a high degree of protection against penetration. Besides, the article identifies the areas for further improvement of the traction current asymmetry control system.

Research of inflow control devices for estimation of application in intellectual well

Ensuring the completeness of oil and gas production from the subsoil by using modern techniques and technologies for controlling the inflow into the well is an urgent task, especially for wells with long horizontal ends. Inflow control devices (ICD), used in conjunction with packers and downhole measurement devices, are part of such systems, covered by the concept of «smart well». In general, such systems make it possible to control the inflow (flow rate) in individual intervals of horizontal wells or in vertical wells of multilayer fields while operating simultaneously in order to optimize production without additional downhole operations in real time. Keywords: inflow control device; horizontal well; intelligent well.