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Tunnels, as specific types of transport structures, place high demands on pavement construction. When selecting the pavement type, two main construction types are often compared: asphalt concrete and cement concrete. Both have their advantages and disadvantages, which must always be considered in light of the boundary conditions. The choice between asphalt and concrete pavement should be based on the specific project requirements, climatic conditions, traffic load, planned service life, maintenance and repair opti...

Repairs of cement concrete pavements are among the most demanding technological operations in road construction and therefore require increased attention. Repairs of less damaged cement concrete pavements are usually made using plastic mortars, epoxy and polyester resins or special materials. The economics of the repair, or the strengthening of damaged cement concrete pavements, is tied to the technical and technological problems of interaction with asphalt layers. Thin reinforced cement concrete slab is a method ...

In 2011, it was decided that the carrying public transport system in Bratislava would be tram transport. Today's transport system is based on radials, it was created as part of Bratislava's first comprehensive transport concept in the ?70s. One of the disadvantages of Bratislava's public transport system is the few tram lines in the city centre, which, with a large number of radials, causes vehicles from different radials to cluster together at dense and poorly spaced intervals. The disadvantage of the radial syst...

Climate change is a global problem with serious social, economic and distributional effects on the environment. It is one of the main current challenges for humanity. Changing climate conditions in the long term, as well as short-term fluctuations and non-standard variation of temperature characteristics, have a significant impact on the behavior of pavement structure. Since the end of the 19th century, average temperatures have risen to 0.6 -C. The article describes the results of measurements and evaluations of ...

The creation of public spaces is currently quite conditioned by the impact of the idea of sustainable mobility and efforts to improve the environment in urban spaces. On the one hand, there are ideas and thoughts for improving public spaces, on the other hand, outdated legislation prevents these ideas from being sufficiently implemented. One of the most important elements for changing the division of transport work in urban conditions and thus improving the perception and appearance of public spaces is to increase...

Several types of transport integrates transit nodes. Transit nodes are located in built-up areas, inside cities or on the outskirts of cities, urban agglomerations. Transit nodes are an important part of public passenger transport. The article is about transit nodes on the regional railway line between Bratislava and Dunajska Streda. The transit nodes are the railway stations on this line. Intercepting parking lots are part of the transit nodes outside large cities. It is important to compare travel times from sou...

In addition to the traffic load, the temperature also has a significant effect on the course of stresses in cement concrete slabs. It is the load of temperature changes that is often underestimated. Recently, there have been significant changes in climatic conditions and increasingly frequent extremes (especially high temperatures in the summer months and extreme fluctuations during the day), which affect the behavior of road structures and the basic characteristics affecting the stress of cement concrete pavement...

Cement concrete pavements are very specific group of the road construction due to the different traffic loads and vary time difficulties in the course of maintenance and repairs. For the design of the planed repairs the increased requirements are imposed especially in the terms of repair life time cycle. The economical evaluation shall consider not only the value of the repair itself but also the cost connected with the diversion of air traffic during the execution of the maintenance and repairs. Therefore, is hig...

In 2019, a new, modern Strategy of the Environmental Policy of the Slovak Republic until 2030 (the Envirostrategy 2030) was approved. The previous one has been in force since 1993, so it was only a matter of time before implementing a strategy to address current environmental challenges and problems. Along with industry and energy, transport is one of the main producers of greenhouse gas emissions. According to the statistics of the Ministry of the Environment of the Slovak Republic, the amount of greenhouse gas e...

Environmental risk factors for environmental problems with physical, chemical and biological factors that cause or may cause health disorders as well as environmental degradation. One possible factor is noise. The World Health Organization (WHO) estimates that a target of 40% of the EU population is exposed to traffic noise of more than 55 dB and that more than 30% is exposed to levels of more than 55 dB at night. The issue of protection of the health of the population against the adverse effects of noise and vibr...

Climate change is a global problem with serious social, economic and distributional effects on the environment. It is one of the main current challenges for humanity. Changing climate conditions in the long term, as well as short-term fluctuations and non-standard variation of temperature characteristics, have a significant impact on the behavior of pavement structure. Since the end of the 19th century, average temperatures have risen to 0.6 °C. The article describes the results of measurements and evaluations of ...

Recycling of asphalt is an important technological process applied worldwide. The strategy is to use as much milled, ripped or broke asphalt material into the new mixture. With the correct technological design, the maximum appreciation of this material is achieved. Due to the dominant use of asphalt mixtures in pavements, it is important to address the possibilities of their recycling. At present, a sufficient amount of reclaimed asphalt with good potential for further use is available in Slovakia. The problem is ...

Transport is part of our lives. We live in an accelerated time and this also affects our transport demands. We need to move from one place to another faster. People often use own cars to move faster. The individual automobile transport has advantages. I tis flexible, fast and comfortable. But the automobile transport disadvantages. Many cars cause traffic jams, have a negative impact on the environment and the public roads are load. Individual car transport competes with public transport. In our country the public...

The transportation infrastructure belongs among the factors, which significantly affect the development of economy and living standard in the country. The development of the highway network, therefore, belongs to priorities. Slovakia has a programme of completion of highway network with length 660 kilometres with the priority of connection to the international multimodal corridors. The preparation and construction of highways sections are gradually shifting from flat territory of Slovakia to the hilly and mountain...

The territory of Slovakia is in Central Europe at the interface of the parts of the continent that are influenced by continental and by oceanic climates. This is reflected in the variability of weather and climate characteristics. Apart from traffic load, change of climatic conditions are one of the constant external factors with adverse effects on physical and mechanical properties of different structural multi-layers in pavements. These impacts together with frost index and their corresponding changes significan...

There are many technologies in road construction to ensure the better parameters of materials, mainly strength and deformation parameters and in recent years are very interesting and necessary so called environmentally acceptable technologies. With the development in the field of asphalt pavements there are various types of organic or chemical additives applied. The main reason of this application is to reduce the temperature used for producing and especially for laying of asphalt mixture. Chemical additives are s...