The article presents the results of research on the behavior of vehicle drivers while approaching the intersection, after the traffic light signal changes from green to yellow. In the above mentioned situation, the driver is required to stop the vehicle. Questionnaire surveys were conducted on a group of two hundred road traffic participants. The scope of the survey was the knowledge on how to react accordingly in the risk triggering situations. The objective of the survey was to get to know the participants' state of knowledge in the specified road traffic situation. The results were compared with the calculations and analyzes of possible behavior patterns arising from the legal regulations in force. Three rational procedure scenarios were selected. Each scenario is describing a possible reaction before the intersection after the transmission of a green signal has ended. The surprise reaction of the driver caused by the change of the signal and insufficient time for correct reaction, which is needed in order to evaluate the situation appropriately, results very often in the road traffic collisions or road traffic accidents. Therefore, it is crucial for the vehicle's driver to have the ability to react accordingly based on the acquired knowledge.

The transport of oversized loads, such as wind turbine components, represents a key logistical challenge due to specific technical and regulatory requirements. The development of the renewable energy sector, particularly wind energy in Poland, has significantly increased the demand for this type of transport. The implementation of wind farm construction projects requires not only advanced technological solutions but also special attention to transport safety and the organization of logistical processes. This study employed the FMEA (Failure Mode and Effects Analysis) risk analysis method, which allows for the identification of potential defects and their causes. Data were collected through surveys, interviews with representatives of transport companies, and field observations. The research sample included 11 companies specializing in oversized transport in Poland and European countries. Based on the gathered information, 15 typical risks associated with the transport of wind turbine components were identified. The most significant risks include the possibility of road accidents and discrepancies between the actual dimensions of the cargo and the transport documentation. The results highlight the need for improvements in route planning, precise verification of cargo parameters, and better management of administrative processes related to obtaining permits. The development of the wind energy sector and dynamic investments in wind farms make the optimization of oversized transport a crucial element in supporting the execution of eco-friendly projects and sustainable development.

Summary Operation of motor vehicles should take into account the elimination of the possibility of accidents. The article considers selected problems occurring in the operation of public transport buses at intersections. Compliance with the requirements of the safety system during signal change on the signaling device controlling traffic at the intersection was analyzed. The human factor in ergonomics is important. Ending the green signal display (in special situations) causes a dilemma of decisions. The driver brakes abruptly (resulting in potentially harming passengers on the bus) or passes through a signal light displaying a red signal. The need to introduce changes in the regulations that would allow the introduction of adequate solutions was pointed out. These are activities in the area of the active safety system in the operation of vehicles in road traffic. The need to provide advance information and change the provisions in applicable law has been demonstrated.

Imprecise and defective regulations should be eliminated in the operation of vehicles. The article discusses and evaluates the differences in legal acts regarding the requirements for the yellow signal at intersections with traffic lights. Poland has signed the Vienna Convention on signs and signals. When implementing it into Polish legislation, the original provision was changed slightly. The reason for the ban on entering the intersection during the yellow signal has been changed. As a result, an unfavorable situation arises for the driver without a good way out. In addition, a colloquial word was introduced, undefined – “rapid braking”. The changes introduced in relation to the Vienna Convention were analyzed and evaluated. Defects were found and the need and necessity of correction of the applicable provision were reported. The necessity to consider changing the provision in the Vienna Convention was also pointed out. There is a need to provide advance information about an upcoming change. These are activities in the operation of vehicles in road traffic from the area of active safety system. It may be possible to use e.g. a flashing signal in the final phase of displaying a solid green signal on the S1 signaling device for vehicles.