## 3 Results
### Experimental Measurements
During the measurements, passenger cars and delivery vans were recorded as slowing down before the speed bump, and passenger cars that did not reduce their speed. Figure 3: Measured buildings: (**a**) building with Klein slabs; (**b**) building with wooden slab (source: authors’ own). Figure 2: Part of the measuring equipment—load disk with sensors (source: authors’ own). Firstly, preliminary measurements were carried out. Figure 4 shows the RMS values of accelerations across 1/3-octave bands obtained as the result of jumping on the floor of the first structure (three-story building with Klein slabs). The results of measurements show that the highest RMS value of vibration acceleration in the X/Y directions peaks at 0.155 m/s\({}^{2}\) within the frequency range centered on 63 Hz. Within this frequency band, it is noted that the threshold frequency specified in the standard [13] corresponds to a central frequency of 80 Hz, where the standard value is outlined at 0.05 m/s\({}^{2}\). It can also be seen from Figure 3 that the RMS values of accelerations in both the X/Y and Z directions are larger than the available values specified in the standard [13] for a wide range of frequencies. Moving forward, Figure 5 provides a detailed overview of the effects stemming from trips involving various vehicle types, encompassing passenger vehicles, trucks, and buses. As could be expected, the RMS values of accelerations in both the X/Y and Z directions are now much smaller, but still larger than the available values specified in the standard [13] for some frequencies in the case of the X/Y direction. By encompassing this diverse range of data, a comprehensive understanding of how vibrations manifest and influence different aspects of the environment can be achieved, shedding light on crucial insights essential for further analysis and interpretation. Figure 4: Maximum RMS accelerations for jumping on the floor: (**a**) in the X/Y directions; (**b**) in the Z-direction—testing the Klein slab (source: authors’ own). Figure 5: Maximum RMS accelerations for traffic-induced vibrations: (**a**) in the X/Y directions; (**b**) in the Z-direction—measurement of the Klein slab (source: authors’ own). In line with this procedure, a similar test was conducted for the second structure (one-story building with wooden slab). Figure 6 shows the RMS values of accelerations across 1/3 octave bands obtained as the result of jumping on the floor. It can also be seen from the figure that the RMS values of accelerations in both the X/Y and Z directions are larger than the available values specified in the standard [13] for the chosen frequencies. This subsequent evaluation specifically pertains to the measurement and analysis of the forces used during testing. It is crucial to note that the comprehensive examination of these testing forces provides valuable insights into the structural integrity and load-bearing capacity of the wooden slab. The data derived from this examination aid in identifying any potential weaknesses or vulnerabilities within the floor's construction. Furthermore, by comparing and contrasting the results obtained from both tests, a more thorough understanding of the floor's overall performance characteristics can be obtained. Such detailed investigations play an important role in ensuring the safety and durability of architectural structures, particularly those incorporating wooden elements like the slab under scrutiny. Figure 7 depicts the results of the analysis of vehicle trips, encompassing both passenger cars and delivery vans, providing valuable insights into transportation patterns and potential impacts on urban areas. It can be seen from the figure that the RMS values of accelerations in both the X/Y and Z directions are now much smaller, but still larger than the available values specified in the standard [13] for some frequencies in the case of the Z-direction. It is crucial to note that wooden slabs, due to their innate characteristics, are particularly susceptible to artificial vibrations.