46 research outputs found

    Factors influencing walking distance to the preferred public transport stop in selected urban centres of Czechia

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    One of the ways of improving the attractiveness of public transport is to bring it closer to its potential users. A long walking distance from a stop is often one of the critical factors limiting its more frequent and extensive use. Studies dealing with the accessibility of transport networks usually work only with the closest stop. This article analyses the actual walking distance from the place of residence to the preferred stop. The survey used a questionnaire method and was conducted in two cities in the Czech Republic-Ostrava and Olomouc. Based on the results of the study, the average walking distance was assessed and the impact of demographic characteristics (gender, age, education, number of members in the household, economic activity, the presence of a child in the household, and car ownership), transport behavior (preferred mode of transportation, car convenience and opinions on public transport), and urban characteristics (prevailing housing type) on the walking distance were analyzed. The main findings prove a significant impact on walking distance by a number of these factors, but the preferred use of a car for commuting or unemployment does not significantly affect walking distance. Highlights for public administration, management and planning: The public transport stop reported as being closest to a respondent's residence was used by only 51% of all respondents in the survey. Another 20% of residents used the second closest stop, 11% the third stop. Travellers select the stop based on number of connections; seamless connection; the speed of connection; potential delays; equipment of stops and nearby areas; the comfort of the vehicle; avoiding overcrowded stop; other personal factors. The average walking distance to the preferred stop is 568 metres in Ostrava while only 439 metres in Olomouc. Significantly shorter distances refer to the female population in Ostrava, retired and unemployed. Assumption of the negative influence of the higher number of family members, higher salaries, car ownership and worse education (blue collar) was not proved.Web of Science131301

    Changes in spatial discontinuity in settlement patterns in the Czech-Polish border area : a case study of Těšín Silesia

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    The paper presents a discontinuity-based analysis of the settlement pattern changes in the Czechia–Poland cross-border historical region of Těšín Silesia. An approach based on a well-known and popular method (regression discontinuity design) was applied to measure spatial discontinuity. To describe the spatiotemporal changes, a combination of spatial, statistical and cartographic methods was used. The observed differences have been developing for more than 150 years; at the start, this area belonged to the territory of one state, and later it was divided by a national border. The division of the region resulted in areas following different development trajectories

    Gas evolution of GEOPOL (R) W sand mixture and comparison with organic binders

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    The article deals with the gas development of the geopolymer binder system hardened by heal and provides the comparison with organic binder systems. The GEOPOL (R) W technology is completely inorganic binder system, based on water. This fact allow that the gas generated during pouring is based on water vapour only. No dangerous emissions, fumes or unpleasant odours are developed. The calculated amount of water vapour generated from GEOPOL (R) W sand mixture is 1.9 cm(3)/g. The measured volume of gas for GEOPOL (R) W is 4.3 cm(3)/g. The measurement of gas evolution proves that the inorganic binder system GEOPOL (R) W generates very low volume of gas (water vapour) in comparison with PUR cold box amine and Croning. The amount of gas is several times lower than PUR cold box amine (3.7x) and Croning (4.2x). The experiment results are consistent with the literature sources. The difference between the calculated and the measured gas volume is justified by the reverse moisture absorption from the air after dehydration during storing and preparing the sand samples. Minimal generated volumes of gas/water vapour brings, mainly as was stated no dangerous emissions, also the following advantages: minimal risk of bubble defects creation, the good castings without defects, reduced costs for exhaust air treatment, no condensates on dies, reduced costs for cleaning.Web of Science192544

    TRAFFIC INTENSITY CHANGES AND SPATIAL DISTRIBUTION OF SUBURBANIZATION

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    Příspěvek se zabývá projevem zvýšené míry intenzity osobní automobilové dopravy na suburbanizaci mezi územím města Olomouce a jeho zázemím. Cílem výzkumu bylo na základě dat intenzit dopravy (Celostátní sčítání dopravy v letech 2000 a 2005) a autory provedeného měření v roce 2010 provést temporální analýzu intenzit dopravy a výsledné změny porovnat s prostorovou diferenciací suburbanizace v zázemí města Olomouce.The paper deals with an increase of car traffic intensity within the area of Olomouc city and its neighborhoods. The aim of the research was temporal analysis of traffic volumes and the resulting changes compared with the spatial differentiation of suburbanization in the hinterland of the city of Olomouc. Input datasets were data traffic volumes of traffic census in 2000 and 2005 and field research of authors in 2010

    Attitudes and Motivation to Use Public or Individual Transport: A Case Study of Two Middle-Sized Cities

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    This paper presents the results of a quantitative study in the Czech Republic to understand travellers’ attitudes towards and motivation to use different means of transport. Two Czech cities, Olomouc and Ostrava, are compared from the point of view of factors influencing spatial and temporal patterns and citizen’s selection of transport mode and transport behaviour (range and daily movements of the population, perception of the quality of public transport etc.). The data for the analysis were obtained from the survey with more than 500 respondents in each city. Spatial and temporal behaviour represented by the pattern of the movement in Olomouc and Ostrava city was identified by statistical and visual analytics methods. Based on a case study of two cities of a different size, we conclude that the size and shape of the city centre (spatial structure) influence not only the distances travelled but also the average speed of public transportation (slower for a smaller city). Distances and choice of transport mode also vary with the density of urban areas but can also be influenced by the spatial structure of the city. The walking distance to a public transport stop does not influence the most frequently used mode of transport. Temporal patterns in both cities are very similar and are not dependent on city size or city spatial structure. The spatial patterns of the car and public transport flows are similar in both cities. Different patterns can be observed for walking and shopping routes

    Design of bonding system for PCB repairs

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    The goal of this thesis is to design a device for PCB repairing, mainly for conductive traces and soldering pads. The design focuses on mechanical construction, control unit and controling of the whole device, which is semiautomatic. A great deal of emphasis is placed on the simplicity and versality of the construction. The teoretic part of this thesis is addressed to the printed circuit board and its repairs. There are presented existing devices for repairing of those defects in the second part. The next part is focused on the design itself in terms of mechanical construction and choosing electrical components. There is described controlling of these components. Part of making mechanical components follows. Last but not least, firmware, which controls whole machine is described there. Finally, the machine was tested in the repair process of the solder pad on the printed circuit board

    Implementation of geospatial technologies into modeling of urban processes in strategic planning of city development

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    OF PH.D. THESIS - RNDR. JAROSLAV BURIAN Abstract in English "Implementation of geospatial technologies into modeling of urbanization processes in strategic planning of city development" PhD thesis represents original author's approach to the modeling of urban processes by using GIS in Olomouc region. In theoretical part, urban processes and spatial structures of the cities are described in connection with geospatial technologies and digital data for studying, analysis, modeling and simulation. Practical part is divided into for separated parts to fluently binding and creating homogenous thematic block. The first part of the thesis analyses development of Olomouc city by using functional areas derived from historical urban plans (since 1930). The development of urban processes, spatial structures of the city and impacts of urbanization and suburbanization are evaluated. Second chapter describes identification, analysis and quantification of suburbanization in Olomouc suburban space. The main result is Toolbox "Suburban Analyst" in ArcGIS software that use multi- criteria evaluation method and allows identifying and quantifying suburbanization in municipalities' level. Third part analyses the readiness of municipalities and cadastral areas for suburbanization. The final values of readiness represent..
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