Ensuring the sustainability of road infrastructure cannot be achieved without the continuous application of new knowledge and approaches within individual management steps. A particularly risky stage in the life cycle of existing roads is the operation phase. High attention is paid to the environmental, financial and social impacts and benefits of individual processes applied by road managers. These processes meet in pavement management systems (PMS), which, however, cannot work reliably without the necessary input data. Information on the development of the technical condition of the road can also be included among the most important data. The paper brings the first outputs from several years of research of measurements on the Slovak 1st class road. Its aim is to gradually determine the degradation functions for the needs of Slovak geographical, climatic and transport conditions. The secondary objective is to verify the reliability of non-destructive measurement procedures of the technical condition of the road. Emphasis is placed on the application of such mathematical procedures that can not only reliably bring about the determination of past developments in the roadway, but can also present the expected picture of future developments.

Effective road management requires the constant generation of new approaches. It is our duty to focus on improving all technical and process areas of road management, especially in the context of environmental and economic sustainability. Otherwise, we will face the fact that neglected parts will slow down the progress of the whole system. This will be reflected in a reduction in the quality of the infrastructure and increased costs over its life cycle. The approach must be systematic and therefore it is necessary to address the elements that, at first sight, do not have a major impact on other elements contained in the whole structure of road infrastructure management. One of the key areas for improvement is the process of winter road maintenance. It must reflect global climate change, new approaches to the cost-effectiveness of finances spent by users and road managers and, last but not least, the need for modern and safe mobility of goods and people. Advanced technologies such as automated anti-icing spraying systems or predictive monitoring of road structure temperature development are one example. However, these innovations bring not only positive but also negative effects.

No abstract

No abstract

Air quality affects the state of the environment, human health as well as individual ecosystems to a significant extent. The permissible level of air pollution is determined by the national laws of each country and the EU. Air quality problems are related to the amount of pollutant emissions that escape into the atmosphere. These emissions have different origins. Transport is identified as one of the serious problems of the future also in terms of air pollution, especially in view of the rising trend of final energy consumption in road transport. One of the main factors of deteriorating air quality in the urban environment is burdened by high traffic density. Regulation of emissions from transport, including passenger cars, is in the general interest of European legislation. Transport produces almost a quarter of Europe's greenhouse gas emissions and is a major cause of urban air pollution. At the same time, it is necessary to deal with air quality in cars, which is affected by several factors. The aim of this article is to analyse the air quality in the cabin of a car that uses a pollen filter with activated carbon. The analysis is focused on particles from 0.3 to 10μm in 16 size categories that affect the health of people in the car. The influence of the fan setting and the state of the indoor environment on the particle concentrations will also be evaluated.