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The paper focuses on road safety assessment. The main objective was to assess the impact of different types and sizes of advertising devices as a potential distraction for drivers. Distraction of driver’s attention in real traffic was evaluated using the “Wiener Fahrprobe” structured observation method. As a method for reliable data collection, the eye tracking method was used to accurately define the time delay caused by the observation of the advertising device. As part of the assessment of the direct impact on drivers, test runs were carried out with 40 drivers on a pre-defined section of road on which different types of advertising devices were present. As an additional, supporting measurement, a vehicle simulator was also used. From the obtained knowledge it was possible to create a unique classification system that can be used to assess the severity of any installed advertising device in general. In the case of distraction, it was found that dynamic advertising devices attract the most attention than conventional static devices and appear to be a significant risk to road safety.

Polysulfone Tecason S samples, designed for use in nuclear facilities, were aged under different conditions to simulate their long-term use in nuclear power plants. The specimens, with thicknesses of 4 mm, were irradiated with 60 Co g rays in oxygen and/or in air at different temperatures and thermally aged at 1808C. For all samples, the glass-transition temperature, the stepwise change in the heat capacity at the glass-transition temperature, and the oxidative induction temperature were measured with differential scanning calorimetry. Simultaneously, the mechanical properties were determined and correlated with the results obtained by differential scanning calorimetry. Although the material was aged under very harsh conditions (irradiation in oxygen with absorbed doses up to 500 kGy and thermal aging at 1808C up to 115 days), the detected changes were relatively small. Nevertheless, a tendency of the glass-transition temperature and oxidative induction temperature to decrease with advanced material degradation was evident. The color changes of the cross-sectional slices of some samples clearly indicated that the degradation was due to diffusion-limited oxidation not homogeneously distributed throughout the sample bulk. In addition, samples from the near surface layers and from the center of the sample were examined.