Jiří Čejka

The Application of Mathematical Methods to the Determination of Transport Flows

This article deals with the basic mathematical methods applied to the determination of the size of traffic flows in an urban area transport network. The methods were applied to the design of a new system of public bus transport in the city of Ceske Budějovice. This article represents the partial outcome of the research carried out by the Institute of Technology and Businesses in Ceske Budějovice.

Possibilities of Using Transport Terminals in South Bohemian Region

Abstract Currently, when there is a need for transport services adapted to the customer requirements and create a workable operational system, there is increasing talk about transport terminals. Since the South Bohemian region is one of those where this issue will be increasingly dealt with, this paper suggests ways to use transport terminals as important support systems for freight and passenger transport.

Determining of Provable Loss in Municipal Bus Transport and Its Influence on Public Budgets in Sparsely Populated Areas of the Czech Republic

Abstract This paper is aimed to compare two regulations concerned with the issue of determining the amount of a provable loss or, newly, a compensation, i.e. Government Decree No. 493/2004 Sb., regulating the provable loss in the public line transport and specifying the method of the exercise of the professional government supervision in the road transport over funding the traffic services, and Regulation No. 296/2010 Sb. on the procedures for establishing the financial model and setting the maximum amount of the compensation. Both regulations suggest the different methodology for determining the amount of compensation in a transport company for the accounting period. The goal is to analyse which methodology encourages the explanatory power of individual items of economically substantiated costs and revenues and whether it has a consistent influence on the final value of compensation. The question is raised of whether we can achieve the same or at least a similar amount of compensation if both methodologies of the provable loss or compensation calculation are applied in the municipal bus transport.

Relationship Estimated Bearing Capacity of Fine-grained Soils with Respect to the Classes of Foundation Soils

Its aim is to elucidate the relationship orientation bearing capacity fine-grained soils and classes of the foundation soils. Quantification and understanding of the nature of bearing capacity in fine-grained soils is one of the basic senses of a geotechnical survey. We can know the orientation suitability of the site for the foundation. This is possible based on the knowledge of the approximate bearing capacity of field surveys. We can also assume certain complications due to demanding building foundations. Approximate estimate of the percentage of each type classes of fine-grained soil is another reason to the knowledge an indicative bearing capacity. It interests us because of its suitability or unsuitability of view the most important characteristics of foundations represented by the bearing capacity.

Evaluation of the Parameters Affecting the Cohesion of Fine Grained Soil

Cohesion of the soils is one of the most important parameters which soil is evaluated in terms of its suitability for building foundations. Safety of construction is in fact dependent on the strength of soil, respectively shear strength. Fine-grained soil represents very specific group, in which is distinguished an effective and total cohesion of soils. The water in the soil thus drastically affects its cohesion contrary to gravel and sandy soils. The publication compares the tabular values of the effective and total cohesion and define the influence of water, grain size and consistency of her behaviour.