Problem. Currently, the problem of energy independence is one of the most urgent. Consequently, there is a significant need for alternative sources of power. Along with this, throughout the history of human development, the issues of roads and their quality have been very topical and relevant. It is especially true for Ukraine. With the development of science and technology, these issues are expanded by functionality of roads, their safety both for drivers and for other road users and the ability to perform several functions simultaneously, for example, to provide transport traffic and generate electricity. Goal. The goal is development of the method of road marking and automatic control of the road traffic using multifunctional road panels. Methodology. The analytical methods of research on the development and application of methods and devices for transforming the energy of the sun into electricity were used. Methods of mathematical modulation were used when considering the principle of multi-functional road panels, combined in one system. Results. The functional features of multi-functional road panels of pavement are revealed and their scheme on the roadway is presented. The principle of operation of the road as a unified system of multifunctional road surface panels has been researched. The scheme of implementation of road marking and automatic control of road traffic is presented. Originality. It is suggested to use special plates – multifunctional road panels – instead of the top layer of the road cover. Such an upper layer of road clothing will allow the road, as an integral complex system, to perform several functions simultaneously: to be a part of the road for motor transport, to generate electricity and to draw a road marking independently, and if necessary – to change it. Practical value. The use of the proposed method of road markings and automatic control of road traffic will make possible quality performance and rapid change of road markings at any time of the year and day, depending on the current natural and traffic conditions. Also, the proposed road pavement will generate electricity as an alternative renewable source of energy.

It is impossible to effectively use water with a high salt content at car washes. In many places, access to water with a high salt content is almost unlimited but its utilization requires deionization. For this purpose, several methods are used, the main of which are reverse osmosis, electrodialysis, ion exchange methods, and distillation. However, they have significant drawbacks. Recently, the technology of capacitive deionization of water has been widely used, based on the removal of salt ions from the solution during the charge/discharge of "double" electric layers of carbon materials with a significant active surface (800‒2,000 m2/g). Theoretically, this process should be more energy efficient by using a low potential voltage (1–2 V). This paper considers the interrelation of physical parameters that affect the process of capacitive deionization of water. The dependences of voltage drop on serial internal resistance on different concentrations of sodium chloride and the distance between electrodes for electrodes based on the material SAUT-1S (Belarus) have been investigated. It is shown that the main contribution to the sequential internal resistance is introduced by the resistance of the electrolyte. As the distance between the electrodes increases, the voltage drop on the serial internal resistance increases linearly. A decrease in the concentration of ions leads to a decrease in the conductivity of the solution, which causes an increase in energy consumption and a decrease in the efficiency of sorption. It has been demonstrated that the voltage drop at the serial internal resistance when the voltage on the electrodes is limited, which is set in order to avoid the transition of the electrode charging mode to the electrolysis of water, causes a significant drop in the efficiency of the capacitive deionization process