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Analysis of selected properties of horizontal road marking
Šašinková, Daniela ; Jůza, Petr (referee) ; Tokař, Stanislav (advisor)
This diploma thesis deals with the analysis of selected properties of horizontal road marking (HRM). In terms of anti-skid properties measurements are made to determine the longitudinal friction coefficient, the coefficient of adhesion under different conditions and skid resistance of HRM. Measurements of anti-skid properties are supplemented by measurement of retroreflection of HRM. The theoretical part describes the current state of the issue, general characteristics of horizontal road marking and quantities measured in this thesis (friction and adhesion). The practical part consists of description of used measuring devices, custom solution and results analysis. The solution consists of the description of the measured samples, their preparation, subsequent measurement and a detailed description of the method of measured data evaluation. Data analysis is based on comparison of results obtained from individual sample groups and on comparison of measured values among themselves. The thesis is supplemented with photo documentation and video footage.
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Analysis of Critical Locations for Road Transport in a Chosen Region - Brno-venkov
Mazánková, Martina ; Jůza, Petr (referee) ; Andres, Josef (advisor)
The topic of the diploma work the Analysis of Critical Locations for Road Transport in a Chosen region – Brno-Country was proposed with the aim to use its results in a practice. The practical use is guaranteed by the cooperation with the Traffic Inspectorial Brno-country of the Police of Czech Republic. The aim of the work is to propose organization and constructional-technical measures that will lead to the increasing of the safety of the road transport after careful analysis of a concrete place, which is the crossroad A56 of the roads III/42510, III/41619, and III/39528. In the end of the work are proposed concrete remedies suitable for realization, which will contribute to an increasing to the road transport safety in the subject crossroad. The results are destined in the first for the use the Police of Czech Republic, appropriate City Hall, and Road Board and Service, but some partial conclusions are suitable for a serious consideration of drivers too.
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System comparison of road adhesion measurements
Mikulec, Roman ; Jůza, Petr (referee) ; Tokař, Stanislav (advisor)
This thesis presents a comparison of different methods for measuring road surface skid resistance and an assessment of whether there is a functional dependency in between measurement results of these methods. It consists of a description of the physical quantities, which are measured by these methods and equipment used for these measurements. The work includes the measurement and comparison of measurement outputs with each other. Among the measurement methods there can be seen similar development of their values, with two exceptions there is similar difference between the results of the measurement methods. When comparing the results XL Meter instrument seemed more accurate than the RaceLogic due to its higher frequency of data recording. By using numerical method of comparison between XL Meter device and multipurpose device TRT there was a constant by which the results differed from each instrument, with value of 0,35, using the method of interspacing the resulting differences of values by a line, the resulting constant by which the results differed between the devices had the value of 0,33.
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The amount of damage determination in cases of defects and failures of flexible pavements road structures
Špaček, Petr ; Jůza, Petr (referee) ; Kledus, Robert (referee) ; Stehlík, Dušan (advisor)
This thesis is focused on possibilities of financial valuation of flexible pavements surface layers conditions, in connection with whole life cycle of the pavement and certain possibilities of their maintenance and repairs, in cases of defects and failures from forensic engineering point of view. There were carried out analysis of the topics connected with judging of flexible pavements surface layers defects and failures related to forensic investigation in the Czech Republic, as well as abroad. In this thesis there were created pricing models of the certain construction works which are related to repairs and maintenance of flexible pavements. Within the possibilities of the author, there were compared market prices of the particular construction works in selected regions with the prices according to generally used pricing systems in the Czech Republic. The goal of this thesis is to create unified methodology for amount of damage financial valuation in cases of defects and failures of flexible road pavements surface layers for forensic engineering practice in the Czech Republic.
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Analysis of selected properties of horizontal road marking
Šašinková, Daniela ; Jůza, Petr (referee) ; Tokař, Stanislav (advisor)
This diploma thesis deals with the analysis of selected properties of horizontal road marking (HRM). In terms of anti-skid properties measurements are made to determine the longitudinal friction coefficient, the coefficient of adhesion under different conditions and skid resistance of HRM. Measurements of anti-skid properties are supplemented by measurement of retroreflection of HRM. The theoretical part describes the current state of the issue, general characteristics of horizontal road marking and quantities measured in this thesis (friction and adhesion). The practical part consists of description of used measuring devices, custom solution and results analysis. The solution consists of the description of the measured samples, their preparation, subsequent measurement and a detailed description of the method of measured data evaluation. Data analysis is based on comparison of results obtained from individual sample groups and on comparison of measured values among themselves. The thesis is supplemented with photo documentation and video footage.
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