Ján Čelko
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View article: Research on Vehicle Congestion Group Identification for Evaluation of Traffic Flow Parameters
Research on Vehicle Congestion Group Identification for Evaluation of Traffic Flow Parameters Open
The traffic flow parameters of the road network are most often evaluated through volumes, which are compared with its maximum volume (capacity) or speed and density. Capacity assessment was performed, considering horizontal and vertical or…
View article: Evaluation of the traffic flow characteristics in relation to the platoon occurrences
Evaluation of the traffic flow characteristics in relation to the platoon occurrences Open
Traffic congestion has become part of daily life. Morning and afternoon queues have a major impact on increasing the average travel time. Furthermore, increasing the negative impact on the environment reduces the overall satisfaction of th…
View article: Road pavement friction determination at various testing conditions
Road pavement friction determination at various testing conditions Open
Pavement skid resistance has a direct and indubitable influence on road safety. The level of measured friction is influenced by many factors such as speed, water film presence and depth, tire type, measuring principle, and of course paveme…
View article: Increasing the level of detail of the macroscopic national model for regional application
Increasing the level of detail of the macroscopic national model for regional application Open
The article presents a pilot example of increasing the detail and meaning of the Slovak national model through the transport model of the Žilina region, which has fundamental international importance in terms of transport infrastructure. T…
View article: Modal split analysis through the traffic volumes
Modal split analysis through the traffic volumes Open
The article deals with the analysis of the modal split in Žilina self-region (ŽSK) during the morning and afternoon peak hours. The results are based on a mobility survey in the region. Households and inhabitants were divided into three ma…
View article: Morning modal split model of economically active people in Zilina region
Morning modal split model of economically active people in Zilina region Open
The paper deals with the parameterization of the morning modal split in the four-step model of the traffic prognosis for the economically active population. Multiple Logit model theory is the process of calculating the modal split. This mo…
View article: Traffic Volumes as a Modal Split Parameter
Traffic Volumes as a Modal Split Parameter Open
Traffic volume depends on several indicators. The most important are the degree of motorization, mobility, and especially the travel time and travel cost factor. The article presents an analysis of the possibility of using mobility surveys…
View article: The Economically Active People in the Transport Process
The Economically Active People in the Transport Process Open
Traffic-planning process, the traffic management process requires continuous collection and analysis of traffic data. The direct measurement usually determines the volume or speed of the traffic flows. In comprehensive traffic, assessment …
View article: Influence of Selected Vehicle Maneuvers on Reduction of the Urban Roads Capacity
Influence of Selected Vehicle Maneuvers on Reduction of the Urban Roads Capacity Open
Capacity assessment of urban roads according to Slovak standard does not sufficiently take into account the influence of vehicle maneuvers on road section performance between the two intersections. This research analyzed turning relations …
View article: Approximate solution the problem of low-speed impact of a conical indenter in a cylindrical shell
Approximate solution the problem of low-speed impact of a conical indenter in a cylindrical shell Open
The article is devoted to solving the problem of impact interaction of a conical indenter with a cylindrical shell. A quasi-static solution is built on the assumption that the total displacement upon impact can be represented as the sum of…
View article: Analysis in modal split
Analysis in modal split Open
The paper deals with the parameterization of the calculation of the modal split in the four-step model determining the traffic prognosis. Multiple Logit model theory is the process of calculating the modal split, the model is in common use…
View article: Air TRITIA transport model
Air TRITIA transport model Open
The project AIRTRITIA has a uniform approach to the air pollution management system for functional urban areas in Tritia region. AIR TRITIA aims to increase air quality management capacities of public sector bodies through the development …
View article: Data Structure of Regional Transport Forecast Model
Data Structure of Regional Transport Forecast Model Open
There are several ways to define basic transport relations in an studied area. Generally, the values have to represent relevant and real situation. The quality of data sources is the determining factor of transport forecast quality. The ba…
View article: Implementation of Transport Data in to the Transport Forecasting in Slovakia
Implementation of Transport Data in to the Transport Forecasting in Slovakia Open
The transport forecast is the unconditional part of every transport studies, LOS capacity calculations or town transport plans. It is processed for several time horizons or time intervals. The basic purpose of transportation planning and m…
View article: Analysis of the Pavement Surface Texture by 3D Scanner
Analysis of the Pavement Surface Texture by 3D Scanner Open
Interaction between vehicle and the pavement surface has the primary effect to the road safety. This phenomenon including adhesive and hysteresis forces influences the contact stresses which are responsible for appropriate interaction betw…