Abstract

Competitiveness of rail transport compared to road transport has been reducing, especially on regional railway lines. To improve this situation, the EU adopted various directives and regulations to increase efficiency of railway undertakings. In this paper we present an organizational and economic model based on European policies for local railway system. The organizational model is based on multi-criteria decision analysis. For the economic model we used an econometric approach to estimate the cost function and marginal costs in regional lines, which constitute the basis for railway charges. By implementing such an organizational model, the functioning of the railway network will improve. The research found that a change in the existing model of calculating costs of infrastructure use would bring economic effects for the railway infrastructure manager and the providers of transport. Using the proposed model we also found that it is reasonable to increase the flow of goods on unused regional railway lines because the railway infrastructure maintenance costs are inelastic with regard to transported gross tons. Konkurentnost željezničkog prijevoza u usporedbi s cestovnim se smanjuje, naročito na regionalnim željezničkim prugama. Kako bi se poboljšala ta situacija, EU je donijela razne direktive i pravila u svrhu povećanja učinkovitosti željezničkih poduzeća. U ovom radu predstavljamo organizacijski i ekonomski model koji se zasniva na europskoj politici vođenja lokalnog željezničkog sustava. Organizacijski model se temelji na analizi odluke o više kriterija. Za ekonomski smo model primijenili ekonometrijski pristup u procjeni funkcije troškova i marginalnih troškova na regionalnim prugama, koji predstavljaju osnovu troškova na željeznici. Primjenom takvog organizacijskog modela, poboljšat će se funkcioniranje željezničke mreže. Istraživanjem se ustanovilo da bi promjena postojećeg modela izračuna troškova korištenja infrastrukture donijela ekonomske koristi rukovodiocu željezničke infrastrukture i onima koji su zaduženi za promet. Primjenom predloženog modela također smo ustanovili da ima smisla povećati protok robe na nekorištenim željezničkim linijama jer su troškovi održavanja željezničke infrastrukture neelastični u odnosu na prevezene bruto tone.

Abstract

Satellite geodetic networks are commonly used in surveying tasks, but they can also be used in mobile surveys. Mobile satellite surveys can be used for trackage inventory, diagnostics and design. The combination of modern technological solutions with the adaptation of research methods known in other fields of science offers an opportunity to acquire highly accurate solutions for railway track inventory. This article presents the effects of work carried out using a mobile surveying platform on which Global Navigation Satellite System (GNSS) receivers were mounted. The satellite observations (surveys) obtained were aligned using one of the methods known from classical land surveying. The records obtained during the surveying campaign on a 246th km railway track section were subjected to alignment. This article provides a description of the surveying campaign necessary to obtain measurement data and a theoretical description of the method employed to align observation results as well as their visualisation. Document type: Article