scholarly journals Multimodal movement planning: logistics network and analysis of transportation alternatives. study case

2019 ◽  
Vol 8 (4) ◽  
pp. 559
Author(s):  
Miguel Figueroa ◽  
Otto Mora Lerma ◽  
Ricardo Fuentes ◽  
Alfredo Ojeda
Keyword(s):  
Single Mode ◽  
Road Transport ◽  
Movement Planning ◽  
Operating Costs ◽  
Logistics Network ◽  
Main River ◽  
Railway Infrastructure ◽  
Multimodal Transport ◽  
Study Case ◽  
Magdalena River

One of the most relevant problems in transport engineering is the planning of multimodal movements where it is necessary to define the logistics network. To analyze the logistics of a foreign trade operator in Colombia, a mathematical model has been designed for the choice of ports, considering multimodal transport and the state of the art. Initially, a multimodal network was built considering modes of maritime, river, rail and road transport, taking advantage of the main river of Colombia (Magdalena river) and the railway infrastructure. Port operating costs, transshipment, port fees, sea freight, operational and variable costs were included in the analysis. It was found that the most suitable ports in Colombia for export are Cartagena and Buenaventura, with the current infrastructure and demand. It has been found that multimodal arcs are more used than those with a single mode, in addition to exports to Ecuador being made by Buenaventura, while to America and Europe is Cartagena. Additionally, there is sensitivity in the choice of ports concerning the level of prices of road transport since in the Colombian context it is vital to change transfers due to the lack of connectivity between modes such as rail and river.   

scholarly journals The usage of green building concept to reduce operating costs (study case of PT. Prodia Widyahusada)

2018 ◽  
Vol 3 (1) ◽  
pp. 72-81 ◽  
Author(s):  
Felix Novendra Tjenggoro ◽  
Khusnul Prasetyo
Keyword(s):  
Design Methodology ◽  
Environmental Design ◽  
Green Building ◽  
Operating Costs ◽  
Water Usage ◽  
Content Type ◽  
Leed Certification ◽  
Study Case ◽  
Concept Usage

Purpose The purpose of this paper is to emphasize green building concept usage and its effect on operating costs and uses Grha Prodia, a building with a green concept owned by PT. Prodia Widyahusada. Design/methodology/approach This research will test whether Grha Prodia could earn Leadership in Energy and Environmental Design (LEED) certification based on the aspects that it has and it will also compare the operating costs of Grha Prodia with Prodia Tower. The two main theories used in this research are cost and green building. Findings The result of this research is Grha Prodia is considered as a green building and it could earn LEED certification if the current aspects are continuously implemented and maintained. Originality/value Moreover, it can fulfill all prerequisite credits in each criterion and further enhance it by fulfilling optional credits in all criteria available. Grha Prodia is also able to demonstrate lower operating costs than a regular building, with 63 percent less water usage and 53 percent less electricity usage.

scholarly journals Low genetic variability in the endangered Colombian endemic freshwater turtle Podocnemis lewyana (Testudines, Podocnemididae)

2007 ◽  
Vol 76 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Mario Vargas-Ramírez ◽  
Ylenia Chiari ◽  
Olga Victoria Castaño-Mora ◽  
Steph B.J. Menken
Keyword(s):  
Dna Sequences ◽  
Nucleotide Substitution ◽  
River Basins ◽  
Habitat Destruction ◽  
Freshwater Turtle ◽  
Fine Scale ◽  
Main River ◽  
Genetic Survey ◽  
Geographic Regions ◽  
Magdalena River

The Magdalena River Turtle (Podocnemis lewyana) is a Colombian endemic species, endangered due to human exploitation and habitat destruction. To date, this species is poorly known ecologically and data on its genetic diversity are lacking. Here we report on the first genetic survey of the species across its distribution range. We obtained mitochondrial DNA sequences (488 bp) of the cytochrome b gene from 109 individuals. Samples belong to populations located at several different localities, grouped in five regions, along the four main river basins: Magdalena, Cauca, San Jorge, and Sinú drainages. We found two haplotypes, which differ in only one nucleotide substitution and which are represented with different frequencies in the five geographic regions. These results suggest that P. lewyana harbors little genetic variation and is a genetically uniform species, but more variable markers (i.e., microsatellites) should be used to unravel fine-scale phylogeographic structures in this species.

RAILWAY TRANSPORT UNDER POLISH LAW

2017 ◽  
Vol 71 (0) ◽  
pp. 93-104
Author(s):  
Maciej Ruciński
Keyword(s):  
Road Transport ◽  
Rail Transport ◽  
Railway Transport ◽  
Legal Obligations ◽  
Railway Infrastructure ◽  
The Law ◽  
Polish Law ◽  
The Cost ◽  
The Impact

The article presents an outline of the law governing railway transport in comparison with the regulations for road transport. The comparison shows that railway entrepreneurs are much more encumbered with legal obligations than road carriers, which in part is due to the specificity of this branch of transport. The essential constraints to the competitiveness of railway transport relate to the cost of access to railway infrastructure and its condition. The article also points out the faulty legislation, disadvantageous to both modes of transport, and attempts to determine the impact of legal solutions for the development of rail transport.

scholarly journals Evaluation and space representation of the maximum surface runoff in watersheds

2021 ◽  
Vol 5 (6) ◽  
pp. 281-287
Author(s):  
Alain Paneque Martínez ◽  
Liber Galbán Rodríguez ◽  
Rosana Caridad Ramírez González
Keyword(s):  
Surface Runoff ◽  
Maximum Flow ◽  
Significant Advance ◽  
Space Representation ◽  
Detailed Knowledge ◽  
Subsequent Work ◽  
Maximum Surface ◽  
Main River ◽  
Santiago De Cuba ◽  
Magdalena River

In Cuba, regardless of the advances made in hydrological and hydraulic investigations related to floods, there are limitations with the detailed knowledge of the true maximum surface runoff or maximum flow that characterizes these phenomena in the season of intense rains, for which it is necessary to carry out complex hydrological study that, with the help of professional software and statistical techniques, help to determine and model spatially with certain reliability, the maximum water surface drained in watersheds. The general objective was pursued: To determine and represent spatially with the use of Geographic Information Systems (GIS) and hydrological methods, the runoff or maximum flow produced by the intense rains in a watershed, selecting to exemplify the watershed from the Magdalena River to the south east of the Santiago de Cuba municipality. As a result was obtained in the first instance, that it is feasible to apply this procedure to know in a preliminary way what maximum flow is available at any point of a main river or tributary. This approximation constitutes a significant advance for subsequent work in other watersheds of Cuba or internationally.

scholarly journals On the creation of the Intelligent multimodal transport system of Russia and the project “Intelligent container chain“

2020 ◽  
Vol 79 (5) ◽  
pp. 276-281
Author(s):  
B. M. Lapidus
Keyword(s):  
Transport System ◽  
High Speed ◽  
Road Transport ◽  
Unmanned Vehicles ◽  
High Tech ◽  
Railway Transport ◽  
Russian Science ◽  
Multimodal Transport ◽  
The Creation ◽  
Transport Complex

In the article, the ideas for the development of unmanned freight vehicles and the construction of high-speed railways are transformed into an innovative resource-efficient and high-tech solution — the creation of an Intelligent Multimodal Transport System of Russia, and the development of projects and structures for unmanned vehicle freight traffic — into the “Intelligent Container Chain” project. The proposals put forward are based on an analysis of the potential of the Russian railways and its implications for the spatial development of the Russian Federation. The trends in the development of unmanned vehicles are analyzed and it is concluded that its implementation in Russia will require the construction of specialized road, energy and digital infrastructure with the appropriate allocation of land allocation and supply of energy, communications and other technological communications. The need to search for new scientific, technological and organizational solutions is shown to achieve synergy between the demand for container road transport and the infrastructural and technological capabilities available in the railway transport system. As such a decision, the expediency of developing a new Intelligent Multimodal Transport System under the auspices of the Russian Railways was substantiated. Priority directions for the development of this system, as well as technical and investment solutions and scientific and technological tasks necessary for its implementation, have been determined. At the same time, questions have been formulated that require scientific study. The advantages of the proposed system for increasing the efficiency of using the transport space and developing a breakthrough competitive infrastructure business of the Russian Railways are disclosed. The prospect of the formation on this basis of unique high-tech groundwork is shown, which makes it possible to realize the potential of Russian science and the transport complex and has a high export potential.

scholarly journals Applying ERRC of Blue Ocean Strategy: A Value Innovation for Contracting Carrier Company Study Case in Indonesia

2021 ◽  
Vol 1 (2) ◽  
pp. 18-27
Author(s):  
Ahmad Sugiono ◽  
Agus Rahayu ◽  
Lili Adi Wibowo
Keyword(s):  
Price Competition ◽  
Added Value ◽  
Operating Costs ◽  
Company Performance ◽  
Value Innovation ◽  
A Value ◽  
Operational Costs ◽  
The Subject ◽  
Study Case ◽  
Freight Forwarding

This study aims to determine the strategy's ability to make price competition irrelevant and optimize the company's operating costs. This type of research uses descriptive qualitative research with the subject of this research is one of the Freight Forwarding companies in Jakarta, namely IGL. The results obtained in this study, among others, by creating partners abroad (Key Partnership), which focus on having freehand shipments import and nominee shipments export, can make a condition where price competition becomes irrelevant. The results also show that focusing on being a contractual carrier and procurement of warehouses is also proven to positively impact operational costs and company performance, provide added value to customers, and support the company's main business.

scholarly journals South Africa’s freight rail reform: A demand-driven perspective

2014 ◽  
Vol 8 (1) ◽  
Author(s):  
Jan H. Havenga ◽  
Zane P. Simpson ◽  
Anneke De Bod
Keyword(s):  
South Africa ◽  
Market Segmentation ◽  
Road Transport ◽  
Freight Transport ◽  
Strategy Development ◽  
Management Approach ◽  
Long Distance ◽  
Logistics Network ◽  
Reform Agenda ◽  
Standard Management

During the 20th century, freight transport in South Africa was employed to attain politicoeconomic ideals, resulting in the overprotection of rail and overregulation of road transport. Increasing industry pressure, combined with the international deregulation trend, led to deregulation in 1988. Myopia resulted in a rail investment hiatus and exponential growth in high-value, long-distance road transport, causing excessive logistics and externality costs for the country. The aim of this study was to propose a freight rail reform agenda based on, (1) lessons from past freight transport policy efforts and (2) the results of freight transport market segmentation driven by models developed over the past two decades. For the study, freight flows were modelled by disaggregating the national input–output model into 372 origin–destination pairs and 71 commodity groups, followed by distance decay gravitymodelling. Logistics costs were calculated by relating commodity-level freight flows to the costs of fulfilling associated logistical functions. The standard management approach of founding strategy development on market-driven segmentation provides a neutral input to steer rail reform discussions in South Africa. Market segmentation points to a dualistic rail reform agenda, enabling both a profit-driven core and a development-driven branch line network. Freight flow insights are steering the policy reform debate towards long-term freight strategy development and optimal freight logistics network design.

scholarly journals Research and application of new multimodal transport equipment-swap bodies in China

2020 ◽  
Vol 145 ◽  
pp. 02001
Author(s):  
Ou Chuan-jin ◽  
Li Bing-tao
Keyword(s):  
Road Transport ◽  
Technical Level ◽  
Transport Equipment ◽  
Multimodal Transport ◽  
Transport Industry ◽  
The 1960S

Swap bodies emerged in Germany in the 1960s and is now a very mature and widely used product in Europe. Compared with Europe, the use of swap bodies in China started late. The application of swap bodies can effectively improve the technical level of the swap trailer transport equipment and accelerate the transformation of the modern road transport industry. This paper comprehensively introduces the size and transportation advantages of swap bodies, discusses the problems existing in the course of development, and expounds its prospect, providing a reference for the promotion and application of swap bodies in China.

scholarly journals Creación de mapas batimétricos usando vehículos submarinos autónomos en el río Magdalena

2010 ◽  
Vol 4 (7) ◽  
pp. 31
Author(s):  
Monique Chyba ◽  
John Rader ◽  
Michael Andoinian
Keyword(s):  
High Resolution ◽  
Autonomous Underwater Vehicle ◽  
River Mouth ◽  
Underwater Vehicle ◽  
Geometric Control ◽  
Navigation Algorithm ◽  
River Bed ◽  
Main River ◽  
Magdalena River

The goal is to develop a guidance and navigation algorithm for an AUV to perform high resolution scanning of the constantly changing river bed of the Magdalena River, the main river of Colombia, from the river mouth to a distance of 10 Km upriver, which is considered to be the riskiest section to navigate. Using geometric control we design the required thrust for an under-actuated autonomous underwater vehicle to realize the desired mission.

scholarly journals Transport-related problems of Bratislava city and its suburbanregion

2020 ◽  
Vol 92 (2) ◽  
pp. 213-226
Author(s):  
Daniel Michniak
Keyword(s):  
Transport System ◽  
Rapid Development ◽  
Road Transport ◽  
Daily Mobility ◽  
Multimodal Transport ◽  
The Future ◽  
The Creation ◽  
Geographical Perspective ◽  
The City ◽  
The Way

Increased daily mobility between Bratislava and its hinterland combines with mobility within the city to put demands on the transport system. The massive increase in road transport, connected inter alia with the rapid development of suburbanisation based mainly on individual automobile transport, has caused many problems. This paper introduces some of those problems as manifested in Bratislava and its hinterland – from a geographical perspective – and outlines the way in which an unfavourable situation can be improved. The future of transport in Bratislava and its hinterland requires the creation of a multimodal transport system, which can effectively serve various transport requirements and ensure the mobility of inhabitants.

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