The driver is a key element in the system of interaction "driver - vehicle - road - environment". About 70 - 90% of all failures falls on errors of this subsystem. One of the main indicators that reflect the willingness of the driver to the professional activity is its functional state. The aim of this work is to identify the dependence of values of the driver's functional state of road surface equality.
The work describes the features of studying the functional state of road users by recording an electrocardiogram. Reviewed different methods of research. Presented requirements for modern cardiographs and devices that meet these requirements. Also was conducted a brief description of the software for the processing of research results.
The research of the functional state (FS) of the passenger is important for assessing the quality of service of transportation by public transport. Analyzed techniques can be used during research of human’s FS. The advantages and disadvantages of different methods of evaluation of FS are established.