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Outsourcing logistics at petrol stations in Slovenia
Ratko Zelenika, Darko Bečaj, Helga Pavlić, 2008, kratki znanstveni prispevek

Opis: The environmental disburdening by means of outsourcing logistics (sorting, bundling, transport) is today significantly more present, since this has been regulated by the law provisions on environmental protection and the economic reasons. Outsourcing logistics in this field with its activities such as: improvement in assembling separate fraction, introduction of new, i. e. additional boxes, usage of specific vehicles for collection and dispatch, reestablishment of information systems and organization of a centre for disburdening of the environment(sorting, bundling and waste disposal) is contributing largely to a better accomplishment of the mission of logistics rationalization and adaptation to new law claims on environmental protection.
Ključne besede: logistics, petrol stations, outsourcing logistics, environemntal protection, economics
Objavljeno: 05.06.2017; Ogledov: 42; Prenosov: 0
.pdf Polno besedilo (2,45 MB)

New type of roundabout: roundabout with “depressed” lanes for right turning - “flower roundabout”
Tomaž Tollazzi, Marko Renčelj, Sašo Turnšek, 2001, kratki znanstveni prispevek

Opis: Recently, many of the foreign traffic-safety analyses point out the low level of traffic safety in multi-lane roundabouts. This problem is resolved in several ways in different countries; however, the solution, whereby the number of conflict points is diminished (e.g. turbo roundabout) has proven to be the most successful. However, the turbo roundabout also has its deficiencies: it has conflict crossing points and larger reconstruction of the existing two-lane roundabout is needed when the turbo roundabout is to be implemented instead of the existing one. In the paper a new type of roundabout has been introduced; the roundabout with “depressed” lanes for right turning (“the flower-roundabout”). Financially speaking, the main advantage of the new type of roundabout is that it can be implemented within the dimensions of the already existing “normal” two-lane roundabout. From the traffic-safety point of view, the main advantage of the new type of roundabout is that it has no crossing conflict points.
Ključne besede: traffic safety, roundabouts, turbo roundabout, roundabout with "depressed" lanes for right turn
Objavljeno: 05.06.2017; Ogledov: 56; Prenosov: 0
.pdf Polno besedilo (896,59 KB)

New type of roundabout: dual one-lane roundabouts on two levels with right-hand turning bypasses - "target roundabout"
Tomaž Tollazzi, Goran Jovanović, Marko Renčelj, 2013, kratki znanstveni prispevek

Opis: The problems of low level traffic safety on multi-lane roundabouts have been resolved in various ways in different countries, usually by using alternative types of roundabouts that reduce the number of conflict points. Alternative types of roundabouts typically differ from "normal" or "standard" roundabouts in one or more design elements, as their implementation purposes could also be specific. Today, several different types of roundabouts are already in use ("mini", "double mini", "dumb-bell", those "with joint splitter islands" ("dog-bone"), those "with a spiralling circular carriageway" ("turbo"), those "with depressed lanes for right-hand turners" ("flower") etc.). This paper introduces a new type of roundabout, dual one-lane roundabouts on two levels with right-hand turning bypasses, namely the "target roundabout". This paper describes and analyses their design, traffic safety, and capacity characteristics, compared with the standard two-lane roundabouts.
Ključne besede: roundabouts, alternative types of roundabouts, turbo roundabout, target roundabout
Objavljeno: 05.06.2017; Ogledov: 40; Prenosov: 0
.pdf Polno besedilo (1,33 MB)

New feeder line rail freight paradigm for the European railways
Stanislav Božičnik, 2006, kratki znanstveni prispevek

Opis: The article deals with the development of the new paradigm of the European rail freight system predominantly suitable for the feeder lines (market niches). Taking into consideration the so far adopted legal solutions of the EU Commission for internationalisation (liberalisation) of the European railway system, the concept of the new rail freight model was developed in order to contribute to the increase of the quality, as well as to the growth of the volume of the rail freight services in Europe. Based on the findings about the disadvantages of the existing rail freight paradigm, the new solution consisting of the three interrelated and interconnected subsystems: institutional, technical/technological and organisational, is proposed. New liberalised access to the entire European rail infrastructure network will increase the competition and most probably attract new railway freight service providers. The introduction of the suggested innovative solutions in form of small, self-propelled, bi-directional train formation that can be automatically coupled and decoupled and equipped with the innovative loading and unloading equipment (enabling loading/unloading operations wherever the truck can stay parallel to the train), is to be expected predominantly on the feeder lines (market niches) of the European railways.
Ključne besede: rail freight, EU transport policy, railway freight system, rail freight paradigm, innovative freight technological solutions, transport policy
Objavljeno: 05.06.2017; Ogledov: 39; Prenosov: 1
.pdf Polno besedilo (2,81 MB)

New approach to determining visibility length on passive protected level railroad crossings
Drago Sever, 2012, kratki znanstveni prispevek

Opis: The paper is based on the question whether the existing (legislation determined) method for determining the visibility length on passive protected level railroad crossings insures the relevant level of traffic safety. It has been recognised that using of such method does not provide stopping of road driver vehicles in front of railroad crossing in all conditions. Based on such conclusion a new approach to determining visibility length on passive protected level railroad crossing is proposed. The new approach is based on the assumption that it is necessary, primarily on level railroad crossings with local roads to recognize the worst possible and expected road and weather conditions. The testing of the proposed method in the real environment has shown that at lower speeds of road vehicles there is almost no difference, and that important benefits are recognised for the speeds of 30 and 50km/h where longer stopping distances of road vehicles have been detected (road vehicle can stop safely in front of a rail crossing) with almost the same visibility lengths. The use of the proposed method could have important impact on the increase of traffic safety on passive protected level railroad crossings.
Ključne besede: traffic safety, visibility field, level railroad crossings
Objavljeno: 05.06.2017; Ogledov: 31; Prenosov: 0
.pdf Polno besedilo (892,41 KB)

Multimodal transport operator liability insurance model
Ratko Zelenika, Tomaž Lotrič, Ervin Bužan, 2011, kratki znanstveni prispevek

Opis: Multimodal transportation means transporting goods from a pickup point, where the operator receives the goods, all the way to the delivery location, using at least two different means of transportation, covered under the same multimodal transport contract and by only one document, regardless of the number or type of transportation vehicles used. The key factor to the optimal operation of multimodal transportation is the multimodal transport operator. It is up to this individual to compensate for various unpredictable circumstances, the complexity of the business processes, nature’s whims and carelessness. He must also organize and execute multimodal transport in all stages. Due to the above mentioned dangers and the fact that the area of liability insurance for multimodal transport operators is still being neglected, this article raises some valid points in favour of a proposal that would cover all of the transportation means as well as all the accompanying activities with a single insurance policy. The model includes 17 elements of liability insurance for a multimodal transport operator and all values which quantify the insurance elements in 2009 as well as the projected values for 2015, when progress is expected in the areas pertaining to the implementation of economical processes concerning transit development, as well as values for 2025, representing a period of innovation, reconstruction, optimization and modernization. With this supposed model for liability insurance of a multimodal transport operator, the foundation is laid for a liability insurance which would be used by a multimodal transport operator.
Ključne besede: transport insurance, multimodal transport, multimodal transport operator, multimodal transport operator liability systems
Objavljeno: 05.06.2017; Ogledov: 47; Prenosov: 0
.pdf Polno besedilo (430,14 KB)

Multicriteria optimisation in logistics forwarder activities
Tanja Poletan, Alen Jugović, Ratko Zelenika, 2007, izvirni znanstveni članek

Opis: Logistics forwarder, as organizer and planner of coordination and integration of all the transport and logistics chains elements, uses adequate ways and methods in the process of planning and decision-making. One of these methods analysed in this paper, which could be used in optimisation of transport and logistics processes and activities of logistics forwarder, is the multicriteria optimisation method. Using that method, in this paper is suggested model of multicriteria optimisation of logistics forwarder activities. The suggested model of optimisation is justified in keeping with method principles of multicriteria optimization, which is included in operation research methods and it represents the process of multicriteria optimization of variants. Among many different processes of multicriteria optimization, PROMETHEE (Preference Ranking OrganizationMethod for Enrichment Evaluations) and Promcalc& Gaia V. 3.2., computer program of multicriteria programming, which is based on the mentioned process, were used.
Ključne besede: traffic, transport, forwarding, logistic chain, planning, optimisation, PROMETHEE
Objavljeno: 05.06.2017; Ogledov: 53; Prenosov: 3
.pdf Polno besedilo (3,86 MB)

Model of sustainable growth and development of the cableway transport system in Slovenia
Sergej Težak, Ratko Zelenika, Drago Sever, 2011, izvirni znanstveni članek

Opis: The cableway transport system is very important for the Slovenian tourist economy. Within the Slovene transport system, the cableway transport subsystem has a specific role because it allows and ensures access to regions which are difficult to access or completely inaccessible by other transport subsystems owing to the configuration of the area. The quality and development of transport services are directly linked to the introduction of new cableways. New technical achievements, which are nowadays used in cableways, all provide greater capacity and higher speed of cableways, which, however, results in their higher maintenance and exploitation costs. The cableway transport system is being developed in Slovenia, but not on principles of sustainable development. This paper presents a model of sustainable growth and development of the cableway transport system in Slovenia based on which it is possible to determine assumptions for future growth so that the Slovene cableway transport system would approach standards of such highly developed systems. The new model includes ten essential elements of this system for which growth rates were calculated.
Ključne besede: cableway transport system, cableways, econometrics, growth matrix, sustainbale growth, winter tourism, mountain tourist centre
Objavljeno: 05.06.2017; Ogledov: 51; Prenosov: 0
.pdf Polno besedilo (513,45 KB)

Model approach to quality provision of public passenger transport
Roman Krajnc, Drago Sever, 2010, pregledni znanstveni članek

Opis: Modern approach to transportation system research is based on the system theory. System analysis is relevant. Constant transportation technique and technology development caused by the need of conformation to the new market conditions is the basis for such an approach. The model approach for resolving the problems of public passenger transport is provided in a scientific report. The model of quality of passenger transport comprises the submodels which define relevant measures for the provision of passenger transport quality. The synthesis of sub-model for adoption of quality standards, submodel of passenger demands, submodel of operation safety and security and economic submodel construct the model of quality of public passenger transport (PPT). Its evaluation has been carried out using SWOT analysis.
Ključne besede: public passenger transport, traffic, lines, network quality, mobility
Objavljeno: 05.06.2017; Ogledov: 60; Prenosov: 2
.pdf Polno besedilo (212,87 KB)

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