Design of a network of cycling routes in the Kutná Hora district

Cycling is a dynamically expanding transport mode of today. At the same time, cycling is an alternative to individual car transport as well as to public transport. The basis of a good cycling infrastructure is a comprehensive network of safe cycling routes linking transport sources and destinations in the area. The partial objectives of the project are to evaluate the management of the existing cycle routes according to the way cyclists are guided and according to the surface of the individual route sections, as well as to determine the basic sources and destinations. The main objectives of the project are to design a network of bicycle routes with a focus on keeping them separate from motorized traffic and linking the identified resources and destinations, as well as determining thedifficulty of each newly proposed route

Dynamic tests of the protective and security barrier system probar

The purpose of this paper is to present a series of dynamic tests for testing the protective and security barrier of the PROBAR system, developed by STRIX Chomutov, a.s., according to the PAS 68:2013 standard. The goal of the tests was to assess how the obstacle resist impacts and whether it can absorb the energy exerted on it. Verification of the mechanical properties of the device was performed in two types of impact configurations. Emphasis was placed on the behaviour of both the obstacle and the vehicle during the impact and in the short time interval after the collision. In terms of criteria for evaluating the impact tests, it can be stated that Test 2 exceeded the Theoretical Head Impact Velocity (THIV) criterion by 20 km h−1, while Test 1 did not exceed the limit value. However, all values for other criteria (ASI, PHD, HIC, 3ms) were within the specified limits, and the safety barrier met the required criteria which allows to be certificated

The possibilities of utilising the skiddometer T2GO for forensic engineering

The aim of the paper is to verify the applicability of the T2GO skiddometer for measuring the coefficient of friction for forensic practice in accordance with the legislative framework of the Czech Republic. In the introduction, the article discusses the problem of friction coefficient measurement. The results of the comparison with dynamic measuring devices used in the Czech Republic and the determination of the mutual compliance rate with these devices, based on data obtained within the National Comparative Measurement Action, are presented. The article concludes with an interpretation and discussion of the results. In cases where no sufficient mutual compliance was found, an analysis and reasoning of these results is provided. Last but not least, based on the results, a procedure is proposed for future use of the T2GO skiddometer in practice within the legislative conditions of the Czech Republic

Application of ontology/conceptual modelling in the context of risk identification at level crossings

This conference paper discusses a new analytical approach to the evaluation of traffic safety at the railway crossings. The new method is based on the use of ontological principles. The ontological tools present a comprehensive decision-making tool, will can be applied to any potential hazardous railway crossing on a road or rail network. The ontology can be considered as a knowledge base that not only stores the data itself, but also defines the relationships between these data, and can therefore be described as a clearly suitable tool for describing risks at level crossings

Design of a network of cycling routes in the Kutná Hora district

Cycling is a dynamically expanding transport mode of today. At the same time, cycling is an alternative to individual car transport as well as to public transport. The basis of a good cycling infrastructure is a comprehensive network of safe cycling routes linking transport sources and destinations in the area. The partial objectives of the project are to evaluate the management of the existing cycle routes according to the way cyclists are guided and according to the surface of the individual route sections, as well as to determine the basic sources and destinations. The main objectives of the project are to design a network of bicycle routes with a focus on keeping them separate from motorized traffic and linking the identified resources and destinations, as well as determining the difficulty of each newly proposed route

The possibilities of utilising the skiddometer T2GO for forensic engineering

The aim of the paper is to verify the applicability of the T2GO skiddometer for measuring the coefficient of friction for forensic practice in accordance with the legislative framework of the Czech Republic. In the introduction, the article discusses the problem of friction coefficient measurement. The results of the comparison with dynamic measuring devices used in the Czech Republic and the determination of the mutual compliance rate with these devices, based on data obtained within the National Comparative Measurement Action, are presented. The article concludes with an interpretation and discussion of the results. In cases where no sufficient mutual compliance was found, an analysis and reasoning of these results is provided. Last but not least, based on the results, a procedure is proposed for future use of the T2GO skiddometer in practice within the legislative conditions of the Czech Republic

Dynamic tests of the protective and security barrier system probar

The purpose of this paper is to present a series of dynamic tests for testing the protective and security barrier of the PROBAR system, developed by STRIX Chomutov, a.s., according to the PAS 68:2013 standard. The goal of the tests was to assess how the obstacle resist impacts and whether it can absorb the energy exerted on it. Verification of the mechanical properties of the device was performed in two types of impact configurations. Emphasis was placed on the behaviour of both the obstacle and the vehicle during the impact and in the short time interval after the collision. In terms of criteria for evaluating the impact tests, it can be stated that Test 2 exceeded the Theoretical Head Impact Velocity (THIV) criterion by 20 km h−1, while Test 1 did not exceed the limit value. However, all values for other criteria (ASI, PHD, HIC, 3ms) were within the specified limits, and the safety barrier met the required criteria which allows to be certificated

Merojské královské město ve Wad Ben Naga // The Meroitic royal city at Wad Ben Naga

Almost two thousand years ago, Wad Ben Naga was one of the most important centres of the so-called Island of Meroe. The ancient city developed on the right bank of the Nile, to the north of Wadi Kirbikan, at a distance of ca. 80 km upstream from Meroe, the capital of the Mer - oitic kingdom. The site gained its significance through its highly strategic location, controlling numerous trade routes meeting at the site. At the same time, it formed a southern limit of one of two core areas of the kingdom, stretching between Meroe in the north and Wad Ben Naga in the south. A settlement of a considerable size existed at Wad Ben Naga already at the turn of the Napatan and Meroitic periods. In the early Meroitic period, it developed into a royal city and distinctive administrative centre. In its heyday, around the beginning of the Christian era, the city went through an intensive building boom, namely during the reigns of Queen Amanishakheto, King Natakamani and Queen Amanitore. Today the archaeological site covers circa 4 km2 and can be divided into three main zones: Central Wad Ben Naga with the ruins of the ancient city, and the Northern and the Southern Cemeteries. Since 2009, the National Museum of the Czech Republic has carried out archae - ological research at the site. During the research, re-excavation of structures unearthed by the Sudanese expedition of Thabit Hassan Thabit, active at the site between 1958 and 1960, was carried out. In the past three years, the expedition has focused on the excavation of the socalled Typhonium, identified as a temple dedicated to the goddess Mut

Using the Eye Tracking Method to Determine the Risk of Advertising Devices on Drivers’ Cognitive Perception

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