Abstract. The purpose of the document is to analyse and evaluate the situation in the field of chronometrations of the town's public transport company Dopravní společnost Zlín-Otrokovice (DSZO) in the Czech Republic in relation to the project "Preference and Area Coordination of Public Transport" and to carry out an evaluation in the sense of evaluation of time savings. In this paper methodological procedures are used corresponding to the procedures, which have been used in the past years with the aim of maximizing transparency and comparability of data and outputs. The project "Preference and Area Coordination of Public Transport" in the town's public transport company Zlín-Otrokovice is connected with 39 junctions with traffic light. Measures to build an active preference system had a significant effect on the main tracking parameter, i.e. the driving time of public transport vehicles. The computational algorithm for the monitored parameter is given by calculating the time savings in public transport. The rate of improvement of the driving time of public transport vehicles in 2017 will be determined compared to the original condition in 2009. In 2017 it had a company DSZO with 53 trolleybuses and 37 buses. The total distance of all 21 lines in both directions is 384,669 meters. The aim of the analysis is to evaluate, how the system of active preference was reflected in the reduction of driving times on public transport vehicle lines. As will be apparent from the results presented in this document, it can be stated that the time savings on the public transport DSZO lines have been achieved.
Malý V., Kučera M., 2014. Determination of mechanical properties of soil under laboratory conditions. Res. Agr. Eng., 60 (Special Issue): S66-S69. This paper presents the mechanical properties of soil. In order to determine the properties of soil under laboratory conditions, a special measuring device was constructed, viz. a bevameter. Two types of soil with different levels of moisture were examined and their mechanical properties were determined. Measurements were taken of non-compressed soil. A measuring network was set up, consisting of measuring and recording devices. In the course of measuring, the force and penetration depth of the pressing plate were recorded simultaneously. Three different diameters of pressing plate were used, namely 38, 50 and 70 mm. The pressure on the contact area was calculated after completion of the measurements, and the relationships between pressure and penetration depth were presented graphically.
We describe and illustrate the application of a geographical information system (GIS) approach to map ice gouge locations and depths from high-resolution multibeam echo sounder (MBES) bathymetric surfaces by calculating residuals relative to spatially variable moving trend surfaces. The workflow can be used to rapidly characterize gouges over large areas and, because minimal human intervention is required, is especially attractive in heavily gouged areas where traditional manual measurement techniques would be tedious and produce highly uncertain results. The method produces maps showing gouge depth as a continuous field rather than point measurements or cross-gouge profiles, so that variations in depth along gouges can be easily visualized and analyzed. Once gouges have been delineated, gouge depth distribution statistics can be further used to estimate exceedance probabilities for gouge depths within local neighborhoods. Seafloor roughness maps can also be generated to highlight the spatial variability of seafloor disturbance and, in a relative sense, visualize the ages of different gouges if certain assumptions are satisfied. We illustrate application of the method using a sample MBES data set depicting a heavily gouged portion of seafloor.
Water column velocities derived from deep water Gulf of Mexico conductivity, temperature, and depth data has been modeled into a seventh-order polynomial to provide a function for seismic time to depth conversions. This model is most accurate in Gulf of Mexico water depths ranging from about 1,500 to 13,000 ft, away from anomalous areas of higher temperatures and salinity. The utility of this equation extends from geohazard assessments to augmenting incomplete velocity profiles for geophysical surveys.
We propose a more robust procedure than the traditional 3D seismic maximum negative amplitude volume extraction analysis to improve shallow gas assessments for sites on the North Slope, Alaska. 3D seismic maximum negative amplitude volume extractions have proven unreliable for prediction of shallow gas accumulations for sites on the North Slope (e.g. Qugruk-2 and Cirque-1 wells uncontrolled fluid release to the environment, and Kookpuk #1 gas influx to the wellbore). The incorporation of seismic multi-attributes to the traditional maximum negative amplitude analysis has improved the geohazards assessment within the overburden section for more than 40 wells in the North Slope of Alaska. This study uses a publicly available 3D seismic data set to reproduce and share the procedures applied over proprietary data for identification of gas-related amplitude anomalies with a focus on an evaluation of seismic amplitudes, relative acoustic impedance, sweetness and automatic gain control. The results reveal that when multiple seismic attributes are correlated and show a consistent response, they appear to be significantly better predictors than maximum negative amplitude analysis alone or other individual attributes as revealed by reported drilling results. This study contributes an improved 3D seismic method for predicting gas accumulations within the reservoir overburden section at proposed drilling sites on the North Slope.
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