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Application of new and progressive diagnostic methods on transport infrastructure objects - implementation process
Styk, Josef ; Březina, Ilja ; Matula, Radek ; Janků, Michal ; Grošek, Jiří
In order to maintain the proper condition of buildings, bridges, roads and other structures, their regular maintenance is essential. Often, if the distress is detected at the beginning of the disorder, the cost of removing it is far lower than after months of uncontrolled degradation. Locating a distress in time, often means detecting it before it is visible to the naked eye. A key means of detecting hidden distresses is non-destructive diagnostic methods (NDT). The purpose of the proposed methodology is to clarify the procedure for introducing new non-destructive diagnostic methods into practice in order to exploit their potential and to replace them or to suitably complement the existing methods. There are presented selected NDT methods and possibilities of their application on selected transport infrastructure objects, including the contribution of comparative measurements (round robin tests) and the creation of illustrative cases of the application of new NDT methods. The presented methodology was prepared within project TE01020168 - Centre for Effective and Sustainable Transport Infrastructure (CESTI), with financial support of the Czech Technology Agency within the Centre of Competence Program. This methodology is intended primarily for the state authorities, the transport infrastructure administrators and companies dealing with diagnostic surveys.
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Air quality monitoring in areas with high traffic load
Ličbinský, Roman ; Huzlík, Jiří ; Hegrová, Jitka
Emissions of pollutants are one of the most serious problems of transportation, particularly as a result of a significant risk to human health. The causes of emissions of pollutants to ambient air are the exhaust gases generated by the combustion of fuel in motor vehicles. They are complex mixtures containing hundreds of chemical substances at different concentrations contributing to long-term warming of the atmosphere, the so-called "greenhouse effect" or often with toxic, mutagenic and carcinogenic properties for humans. The presented methodology was developed within project TE01020168 - Center for effective and sustainable transport infrastructure (CESTI) with the financial support of the Technological Agency of the Czech Republic within the Competence Centres Programme. Its aim is to unify the procedures for the implementation and evaluation of air quality monitoring in order to provide objective information on the actual status and development of air quality in areas with intensive transport. It summarizes the legislatively defined requirements for air quality monitoring and at the same time defines the pollutants whose very important source is transport and which should be monitored when assessing the impact of transport on air quality: nitrogen dioxide, (nano)particles, benzene, or platinum group elements and benzo[a]pyrene. The methodology can be used by the Ministry of Transport, road owners or their managers (ŘSD, regions and municipalities) as an effective tool for controlling both long-term monitoring and indicative measurements of air quality in the vicinity of roadways. At the same time, it will find application to metering processors and organizations providing their own air quality measurement to provide a standardized procedure to ensure a precise air quality assessment based on real data. The methodology will also help to deepen the knowledge of the staff of all the mentioned institutions and provide a standardized procedure for which, for example, contracting authorities may refer to public procurement.
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Application of thermography in the diagnostics of transport infrastructure objects
Janků, Michal ; Stryk, Josef
In order to maintain the proper condition of buildings, bridges, roads and other structures, their regular maintenance is essential. Often, if the distress is detected at the beginning of the disorder, the cost of removing it is far lower than after months of uncontrolled degradation. Locating a distress in time, often means detecting it before it is visible to the naked eye. A key means of detecting hidden distresses is non-destructive diagnostic methods (NDT), including thermographic testing. The purpose of the presented methodology is to provide an efficient tool that will allow a rapid assessment of the state of the transport infrastructure objects and help with the identification of the locations where visual inspection or detailed diagnosis is required. The thermographic measurement is non-contact and can be carried out without the need to exclude traffic on the road. The methodology describes possible ways of using infrared thermography, especially in diagnosis of bridges, roads and tunnels. The presented methodology was prepared within project TE01020168 - Centre for Effective and Sustainable Transport Infrastructure (CESTI), with financial support of the Czech Technology Agency within the Centre of Competence Program. This methodology is intended for road managers at all levels (state, county, city), designers, construction companies and other entities that can use data and processed outputs from thermographic measurements.
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Evaluation of pavement condition by combination of FWD device and ground penetrating radar
Stryk, Josef ; Březina, Ilja ; Matula, Radek ; Grošek, Jiří ; Janků, Michal
The combination of two non-destructive diagnostic devices – the Falling Weight Deflectometer (FWD) used to assess the bearing capacity of pavements and the Ground Penetrating Radar (GPR) used to determine the thickness of structural layers, to identify inhomogeneities, hidden defects and failures are increasingly being used in pavement diagnostics. The purpose of the methodology is to specify the procedure for performing measurements of combinations of these two devices, in the context of conducting a diagnostic survey of pavements. It draws attention to the benefits of processing data measured by both devices and their use in creating homogeneous sections, which serve as a basis for planning of maintenance, repair and reconstruction of roads. The presented methodology was prepared within project TE01020168 – Centre for Effective and Sustainable Transport Infrastructure (CESTI), with state support of the Czech Technology Agency within the Centre of Competence Program. This methodology is intended primarily for companies dealing with pavement diagnostic surveys
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Geocomposite drainage for the purpose of drainage on transport infrastructure objects
Macan, Tomáš ; Zedník, Petr ; Stryk, Josef ; Vodáček, Ondřej ; Kašpar, Martin ; Hubík, Petr
This methodology describes in detail the design, dimensioning and application of geocomposite drainage for the purpose of drainage on transport infrastructure objects. In addition to conventional systems, such as drainage layers made up of unbound, permeable materials, geocomposites are increasingly encountered on construction sites. Drainage geocomposite is a geosynthetic with drainage function, able to drain water in the plane in which it is installed for this purpose due to its composite structure. It consists of a drainage core and core protection. Very little space is devoted to drainage geocomposites in Czech standards and technical regulations. Therefore, this methodology deals in more detail with the design and application of drainage geocomposites, summarizes knowledge and procedures from various, mainly foreign, sources and is intended to help their wider and technically correct use in practice. It gives details, sample sheets and specific examples of implementation that supplement the information given in the technical regulations for drainage. The methodology was prepared within project TE01020168 - Centre for Effective and Sustainable Transport Infrastructure (CESTI), with state support of the Czech Technology Agency within the Centre of Competence Program. This methodology is intended primarily for the transport infrastructure owners and administrators, designers and contractors of transport infrastructure objects.
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