THE METHOD TO SELECT THE TRANSPORT PATH BASED ON THE MULTIMODAL COST

Transport ◽  
2012 ◽  
Vol 27 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Yaorong Cheng
Keyword(s):  
Current Paper ◽  
Transport Cost ◽  
Mathematics Model ◽  
Total Cost ◽  
Forming Mechanism ◽  
Multimodal Transport ◽  
Transport Path ◽  
Multimodal Network ◽  
Set Up

To begin with, the current paper introduces the meaning of freight multimodal transport in order to select the best transport path in multimodal network. Secondly, the forming mechanism of freight multimodal transport cost has been illustrated. In addition to that the construction and the character of the freight multimodal cost have been analyzed carefully, and the mathematics model is set up so that to figure out the total cost of multimodal. Finally, a case of multimodal is given out and analyzed. The results indicate that the model and way to select the best multimodal path in the multimodal network are reasonable and effective.

scholarly journals A Model to Simulate Multimodality in a Mesoscopic Dynamic Network Loading Framework

2017 ◽  
Vol 2017 ◽  
pp. 1-16 ◽  
Author(s):  
Massimo Di Gangi ◽  
Antonio Polimeni
Keyword(s):  
Transport System ◽  
Dynamic Network ◽  
Real Situation ◽  
Dynamic Network Loading ◽  
Network Loading ◽  
Functional Aspects ◽  
Multimodal Transport ◽  
Multimodal Network ◽  
Modal Change ◽  
Simple Network

A dynamic network loading (DNL) model using a mesoscopic approach is proposed to simulate a multimodal transport network considering en-route change of the transport modes. The classic mesoscopic approach, where packets of users belonging to the same mode move following a path, is modified to take into account multiple modes interacting with each other, simultaneously and on the same multimodal network. In particular, to simulate modal change, functional aspects of multimodal arcs have been developed; those arcs are properly located on the network where modal change occurs and users are packed (or unpacked) in a new modal resource that moves up to destination or to another multimodal arc. A test on a simple network reproducing a real situation is performed in order to show model peculiarities; some indicators, used to describe performances of the considered transport system, are shown.

An Assessment of the Belt and Road Performance

2019 ◽  
pp. 108-127
Author(s):  
Sedat Baştuğ ◽  
Turgay Battal
Keyword(s):  
Cost Model ◽  
Volume Ratio ◽  
Transport Cost ◽  
Primary Methods ◽  
Original Analysis ◽  
Multimodal Transport ◽  
Belt And Road ◽  
The Cost ◽  
The Belt And Road

The aim of the chapter is to propose a methodology to illustrate the cost and time components of door-to-door movement by One Belt and One Road (OBOR) and traditional routes alongside with modes. The study is concentrated on a case study and uses established multimodal transport cost model as a research framework. Interviews with industry practitioners and observation from primary methods of data collection. The use of multimodal transport cost model is common in the containerized cargoes. Hence, this study provides an original analysis for OBOR initiative. The volumes of OBOR shipments are large, with a high value-to-volume ratio. The research initially confirms that multimodal transport alternatives and modal combinations may successfully be applied and assess the performance of OBOR initiative.

scholarly journals A Comparison of Logging Planning, Felling, and Skyline Yarding Costs Between Clearcutting and Five Group-Selection Harvesting Methods

1996 ◽  
Vol 11 (3) ◽  
pp. 90-96 ◽  
Author(s):  
Loren D. Kellogg ◽  
Pete Bettinger ◽  
Richard M. Edwards
Keyword(s):  
Pseudotsuga Menziesii ◽  
Group Selection ◽  
Douglas Fir ◽  
Total Cost ◽  
Silvicultural Treatment ◽  
Cable Yarding ◽  
Selection Harvesting ◽  
Set Up ◽  
Manual Felling ◽  
The Cost

Abstract Logging planning, felling, and cable yarding costs were determined for five group-selection treatments and a clearcut in a 90 yr old Douglas-fir (Pseudotsuga menziesii) stand in western Oregon. The harvesting system included manual felling and a yarder rigged in a standing skyline configuration with a mechanical slackpulling carriage. The clearcut treatment had the lowest total harvest cost; costs of the group-selection treatments were 7.3 to 31.5% higher than the clearcut. Yarding cost associated with road and landing changes, plus the cost of equipment moving, set up, and tear down allocated over different treatment volumes removed had the biggest influence on total cost for each silvicultural treatment. West. J. Appl. For. 11(3):90-96.

scholarly journals Competitive interactions between species of freshwater snails: I. Laboratory: Ia. General methodology

1983 ◽  
Vol 78 (3) ◽  
pp. 335-341 ◽  
Author(s):  
Frederico Simões Barbosa ◽  
Dirceu P. Pereira da Costa ◽  
Francisco Arruda
Keyword(s):  
Laboratory Experiments ◽  
Freshwater Snail ◽  
Current Paper ◽  
Competitive Interactions ◽  
Laboratory Work ◽  
Freshwater Snails ◽  
Technical Advance ◽  
General Methodology ◽  
Different Types ◽  
Set Up

For the development of laboratory experiments on the competitive interacitons between freshwater snail populations, special snail rooms were set up in the main building of the Research Center "Aggeu Magalhães". In the current paper, the first of a series on this subject, the general methodology of the laboratory work is described in detail. Using indoor cement channels in which a uniform seminatural environment was created, interactions of freshwater snail populations can be studied with minimal interference of the usual variables. Controlled indoor environmental techniques, as described in the current paper, may also be utilized in different types of experiments in malacology, and represent a substantial technical advance in malacological work.

scholarly journals Multimodal Capacitated Hub Location Problems with Multi-Commodities: An Application in Freight Transport

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Alan Osorio-Mora ◽  
Francisco Núñez-Cerda ◽  
Gustavo Gatica ◽  
Rodrigo Linfati
Keyword(s):  
Latin American ◽  
Location Problems ◽  
Transport Cost ◽  
Mixed Integer ◽  
Hub Location ◽  
Proposed Model ◽  
Multimodal Transport ◽  
Two Factors ◽  
Commercial Solver

Hub location problems (HLPs) support decision making on multimodal transport strategic planning. It is related to the location of hubs and the allocation of origin/destination (O/D) flow in a system. Classical formulations assume that these flows are predefined paths and direct delivery is not available. This applied research presents a mixed integer linear programming (MILP) model for a capacitated multimodal, multi-commodity HLP. Furthermore, an application on the export process in a Latin American country is detailed. The new proposed model, unlike the traditional HLP, allows direct shipment, and its O/D flows are part of the decision model. Situations with up to 100 nodes, six products, and two transport modes are used, working with initial and projected flows. All instances can be solved optimally using the commercial solver, Gurobi 7.5.0, in computational times less than a minute. Results indicate that only one hub is profitable for the case study, both for the initial and projected scenarios. The installation of a hub generates transport savings over 1% per year. Two factors affect the location decision: low concentration and distance between the hubs and destinations. Long distances involve an exhaustive use of trains instead of trucks, which leads to lower transport cost per unit.

Optimal Design of SRC Transfer Beam of High-Rise Building

2013 ◽  
Vol 438-439 ◽  
pp. 1884-1887
Author(s):  
Bin Liang ◽  
Zhao Liang Zhang ◽  
Rong Li
Keyword(s):  
Fair Division ◽  
The Finite Element Method ◽  
Optimal Model ◽  
Optimal Method ◽  
Total Cost ◽  
Steel Reinforced Concrete ◽  
High Rise ◽  
Actual Design ◽  
Design Software ◽  
Set Up

Combined with a design of steel reinforced concrete (SRC) transfer beam in a tall building, and by analyzing interaction between transfer-beam and shear wall by the finite element method, the optimal model is set up. It is to minimize the total cost subjected to constraint of bearing capacity etc. By proper optimal method, the model of SRC transfer beam is optimized. The results show that the beam size achieves a fair division subjected to the condition of strength, structure etc. Meanwhile, actual design software indicates that the optimized data meet the design.

scholarly journals The model of selecting multimodal technologies for the transport of perishable products

2019 ◽  
Vol 50 (2) ◽  
pp. 17-33 ◽  
Author(s):  
Paweł Leleń ◽  
Mariusz Wasiak
Keyword(s):  
Mathematical Model ◽  
Transport Cost ◽  
Maximum Temperature ◽  
Perishable Products ◽  
Safety Criterion ◽  
Significant Group ◽  
Perishable Goods ◽  
Multimodal Transport ◽  
Efficiency Of Selection ◽  
Selection Of

The main goal of this paper is to provide an original model of selecting multimodal technologies for the transport of perishable goods. The model in particular refers to the transportability of cargoes. The features of cargoes that have the most impact on transportability were specified. Formal representations of the key elements of the model were presented and characterized, including: perishable cargoes, form of transported goods (solid, liquid, etc.), means of handling (including loading devices and transport means), transport routes, categories of human labor, multimodal technologies and transportation tasks. A formal representation of decision variables, as well as constrains and a criterion function were provided. The model bases on two main solution assessment criteria: cost criterion and cargo safety criterion. A cargo safety criterion in the model is composed of 18 partial criterion functions. Each of these functions directly affects one safety aspect of the transported cargo. The exemplary partial criteria of cargo safety included in the model are: acceptable transport time, minimum or maximum temperature in the cargo’s direct surroundings, resistance to mechanical damage. In order to present a practical application of the presented mathematical model the paper shows also an example of selecting one of the multimodal technologies for the transport of perishable goods from the set of pre-defined types of multimodal transport technologies. The developed method uses different elements of the mathematical model provided in the paper, depending on the considered problem (including characteristics of cargo and their transport forms). For a significant group of perishable cargoes, it is not required to consider all defined criteria associated with cargo safety. The developed model allows for the accurate selection of transport technology for perishable cargoes for most transportation tasks. It should help to increase the efficiency of selection of multimodal transport technology for perishable products. The selected technology will then be characterized by the lowest transport cost and will ensure the safety of transported cargoes, as well as will meet other requirements determined by the transport task. As part of further work, it is possible to develop proposed method by considering additional characteristics of perishable cargoes.

scholarly journals GIS Application for Estimating the Current Status of Municipal Solid Waste Management System: Case Study of Chandigarh City, India

Our Nature ◽  
1970 ◽  
Vol 9 (1) ◽  
pp. 26-33 ◽  
Author(s):  
A. Khajuria ◽  
T. Matsui ◽  
T. Machimura
Keyword(s):  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Solid Waste Management ◽  
Assessment Model ◽  
Current Status ◽  
Municipal Solid Waste Management ◽  
Gis Application ◽  
Total Cost ◽  
Transport Path

The population growth in many urban cities and its urban activities in developing countries have resulted in an increased generation rate of municipal solid waste(MSW), an important issue. In the process of municipal solid waste management (MSWM) system in which, collection activities contributed the most of total cost that is paid for MSW collection activities by city’s citizen; and transport activities are required 60-70% of total cost that is the total expenditures spent on the transport, transfer, disposal and treatment of MSW by city authorities. Hence optimization of routing system, systematization of collection, transport and transfer activities is the important components for an effective MSWM system. This article describes the current problems and the improvement of the management activities in a city of Chandigarh. An integrated MSWM assessment model is proposed and used as a decision support tool for daily efficient operations such as collection/ transport path management, load balancing within vehicles, fuel consumption management by using GIS application. In addition, a simple optimal routing model is proposed to achieve the minimum cost/distance/time efficient collection and transport path for MSWM.DOI: http://dx.doi.org/10.3126/on.v9i1.5729

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