scholarly journals METHODOLOGICAL PRINCIPLES OF THE ORGANIZATION OF THE MARINE PASSENGER TRANSPORT NETWORK

Author(s):  
Nikolaj Nikolaevich Maiorov

Realization of sustainable development of sea passenger transportation and overcoming negative influence of unstable environment are determined by the chosen course, which is the basis of strategic management. According to statistics, the sector of sea passenger transport shows a significant increase both in passenger traffic and the intensity of the work of the ships on the routes. Besides, there are observed changes of the routes of ferry lines, expansion of the fleet, as well as the role of sea passenger terminals is also changing. Ferry lines owners, striving to increase profits and their importance in ports, compete for passenger traffic. This circumstance calls for description of the principles and forms of organization of maritime transport networks, identification of patterns of construction and changes under the influence of the environment on the basis of choosing discrete values of the system states. The received models of marine transport network organization are intermediate stages of development, on the basis of which it is possible to determine potential of the transport network development, to evaluate possibility of the company's transition to a new level. To solve the tasks of strategic management, it is necessary to construct the objective function taking into account a large number of constraints and influence of the environment. The region of the Baltic Sea and the existing network of cruise and ferry routes have been chosen as the object of research. As a result of the analysis, there have been obtained schemes for arranging ferry and cruise lines, models of target functions for achieving transportation efficiency, which will enable to solve the task of strategic management at a qualitative level. The obtained results allow to increase the quality of modeling as well, since they are the initial data that are introduced into the simulation models for development forecast.

Aviation ◽  
2007 ◽  
Vol 11 (1) ◽  
pp. 28-34 ◽  
Author(s):  
Tatiana O. Blinova

At present the problem of forecasting passenger transport demand is of immense importance for air transport producers as well as for investors since investment efficiency is greatly affected by the accuracy and adequacy of the estimation performed. The aim of the present research is to analyze the possibility of using a neural network approach to forecast the expansion of the air‐transport network in Russia.


2020 ◽  
Vol 13 (3-4) ◽  
pp. 215-229
Author(s):  
Katarzyna Wardin

AbstractThe Baltic Sea basin is one of the busiest areas in Europe in terms of the passenger transport and is considered as a domestic sea of the European Union, very important for the development and prosperity of all citizens. A high number of ferries connections along with exclusive cruise ships, visiting the Baltic countries, make the sea very busy. At the same time the security of lines of communications has become the highest priority, especially that a possibility of terrorist attacks still poses a serious threat. Although terrorism has been being fought intensively since 11th September, terrorist organizations such as Al-Qaeda or Islamic State of Iraq and the Levant, are still able to attack. The article considers the threat of organizing a terrorist attack posed by Foreign Terrorist Fighters returning home to the Baltic countries. Due to the fairly high number of Foreign Terrorist Fighters in some countries around the Baltic Sea, very intense passenger traffic in the area, and the appeals which have been proclaimed by Al-Qaeda and Islamic State leaders, there is a possibility of a terrorist attack occurrence in the near future. Cited facts lead to the conclusion that some precautions should be taken both in terms of technical and organizational measures to make passenger traffic secure.


2010 ◽  
Vol 10 (1) ◽  
pp. 5-20
Author(s):  
Jakub Chmelík ◽  
Viktor Květoň ◽  
Miroslav Marada

Evaluation of Competitiveness of Rail Transport on Example of Connection Among Regional Capitals in Czechia The article is focused on evaluating the significance of rail passenger transport in transport contacts among regional capitals in Czechia representing the most important centres in the settlement hierarchy. The review of the particular connections works with the values of the year 2007 and is based on the relationship between supply and demand for rail passenger traffic. The evaluation is based on the number of rail links within the working day, while assuming that the supply is influenced by the location of the centre in the transport network and its position in the settlement hierarchy. Real demand data represent the number of tickets sold by the Czech Railways. Theoretical size of the interaction is obtained by application of the gravity model. Based on the final evaluation of indicators of supply and demand for rail traffic among regional capitals and their interactions, relations are described where demand is substantially below, respectively beyond the level of real supply and theoretical interaction, which is based on the importance of centres and their accessibility of the railway transport in time. In conclusion, the opportunities for the development of infrastructure in the selected connection in relation to transport planning are outlined, using the obtained results.


2021 ◽  
Vol 14 (3) ◽  
pp. 4-11
Author(s):  
Evgeniy Anikeev

Various methods of collecting data on passenger traffic, their advantages and disadvantages are considered. It is shown that in order to improve the quality of transport services, it is necessary to regularly collect and refine data on passenger traffic. The goals and methods of obtaining information about passenger traffic in the system of municipal passenger transport are indicated. All currently existing methods are divided into three categories: data collection using technical means, data collection with the help of censors and volunteers, and interpretation of fare payments. All the methods presented in the article were compared in terms of labor intensity, costs and accuracy of the results obtained. The advantages and disadvantages of each method are considered. The general structure of an automated system for collecting data on passenger traffic is presented. The necessity of creating a centralized system for collecting and processing data associated with all passenger transport control systems has been substantiated. The tasks solved by this system at all levels of transport services for passengers are shown. Each of the tasks is assigned to one of three service levels: pre-transport, transport and post-transport. It is shown that only solving problems at all levels can ensure high-quality operation of the municipal passenger transport system.


Author(s):  
Zoia Halushka

The article examines the development of the theoretical concept of stakeholders, a comparative analysis of approaches to the definition and grouping of stakeholders depending on their impact on the functioning of the organisation. The objective nature of the emergence of strategic stakeholder management as a modern concept of organisation management, operating in an unstable environment, is substantiated. Based on the analysis of theoretical approaches to substantiation of the essence of the concept of stakeholder management, the necessity and peculiarities of its application in strategic management of organisations in modern business conditions are shown. The main task of stakeholder management is identified, which is not just to maintain mutually beneficial interaction between all stakeholders, but to find mechanisms to improve the effectiveness of joint activities as a holistic system that includes the interests of all stakeholders. Based on the generalisation of all tools and mechanisms of strategic stakeholder management, two main approaches are identified - resource and relationship. It is noted that the relational approach means the formation of social capital, which in itself is a strategic resource, as it ensures the reputation of the business and promotes competitive advantage. It was found that in strategic management there are already certain principles of stakeholder management: systematic relationships, strategic orientation of all stakeholders to develop business strategies that take into account the interests, values and long-term goals of the organisation; mutual benefit of relations with stakeholders; the need to balance the interests of stakeholders; proactive management; focus on sustainable development and long-term relationships; transparency and accountability in non-financial relationships. It is substantiated that the result of effective stakeholder management is the value of the organisation. It is created by the joint efforts of all stakeholders on the basis of their interaction and depends on the availability, sufficiency and effectiveness of management of all resources and types of capital.


Author(s):  
Behnam Izadi

Shared mobility systems such as carsharing provide significant social and environmental benefits by reducing the number of vehicles used in the urban transport network. The carsharing systems are facing many challenges from the design to operation stages. In the design and strategic management level, it is important to find the best location for the stations, a minimum number of vehicles and a minimum number of operating staff, and in the operation stage, the most important problem is to relocate the vehicles moved by the members among the network to maximize the satisfied demands while the system is still economical. Effective and efficient optimization technology that can respond to user's demand is one of the necessary components for a successful carsharing system. The authors survey the related operations research models in the academic literature proposed to model different aspects of carsharing systems from a strategic and operational point of view to find the gaps and propose opportunities for new research.


Author(s):  
Xi Li ◽  
Thushara Weerawardane ◽  
Yasir Zaki ◽  
Carmelita Görg ◽  
Andreas Timm-Giel

This chapter introduces traffic separation technique and presents several traffic separation approaches to transmit HSPA (HSDPA/HSUPA) traffic and UMTS Release 99 (R99) traffic over a shared access transport network. The traffic separation technique enables QoS differentiations of HSPA and R99 traffic, while aiming to achieve a maximum utilization of the transport resources. In this chapter, two transport networks are studied for UMTS access network: ATM (Asynchronous Transfer Mode) based transport network and IP based transport network with DSL (Digital Subscriber Line) technology. In the ATM based transport network, the authors suggest the traffic separation approaches by using separate ATM Virtual Paths (VPs) or Virtual Circuits (VCs) for transmitting R99 and HSPA traffic with different ATM QoS class. With the introduction of IP transport, the authors propose to transport the HSPA traffic over the DSL network while transmitting the R99 traffic with the legacy ATM network. The benefit of applying traffic separation and its impact on the performance of the transport network as well as the end users are studied in this article. The quantitative evaluations are provided by simulations. The results presented are obtained from own developed UMTS R99 and HSPA simulation models, which can generate HSDPA and HSUPA traffic as well as R99 traffic in the same UMTS network and transmit them with different transport technologies and traffic separation approaches. The presented results demonstrate that applying traffic separation between HSPA and R99 traffic can considerably improve the performance of both HSPA and R99 traffic, and as well bring significant gain on efficient bandwidth utilizations.


PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e2906 ◽  
Author(s):  
Johan Eklöf ◽  
Åsa Austin ◽  
Ulf Bergström ◽  
Serena Donadi ◽  
Britas D.H.K. Eriksson ◽  
...  

Background Organism biomass is one of the most important variables in ecological studies, making biomass estimations one of the most common laboratory tasks. Biomass of small macroinvertebrates is usually estimated as dry mass or ash-free dry mass (hereafter ‘DM’ vs. ‘AFDM’) per sample; a laborious and time consuming process, that often can be speeded up using easily measured and reliable proxy variables like body size or wet (fresh) mass. Another common way of estimating AFDM (one of the most accurate but also time-consuming estimates of biologically active tissue mass) is the use of AFDM/DM ratios as conversion factors. So far, however, these ratios typically ignore the possibility that the relative mass of biologically active vs. non-active support tissue (e.g., protective exoskeleton or shell)—and therefore, also AFDM/DM ratios—may change with body size, as previously shown for taxa like spiders, vertebrates and trees. Methods We collected aquatic, epibenthic macroinvertebrates (>1 mm) in 32 shallow bays along a 360 km stretch of the Swedish coast along the Baltic Sea; one of the largest brackish water bodies on Earth. We then estimated statistical relationships between the body size (length or height in mm), body dry mass and ash-free dry mass for 14 of the most common taxa; five gastropods, three bivalves, three crustaceans and three insect larvae. Finally, we statistically estimated the potential influence of body size on the AFDM/DM ratio per taxon. Results For most taxa, non-linear regression models describing the power relationship between body size and (i) DM and (ii) AFDM fit the data well (as indicated by low SE and high R2). Moreover, for more than half of the taxa studied (including the vast majority of the shelled molluscs), body size had a negative influence on organism AFDM/DM ratios. Discussion The good fit of the modelled power relationships suggests that the constants reported here can be used to quickly estimate organism dry- and ash-free dry mass based on body size, thereby freeing up considerable work resources. However, the considerable differences in constants between taxa emphasize the need for taxon-specific relationships, and the potential dangers associated with ignoring body size. The negative influence of body size on the AFDM/DM ratio found in a majority of the molluscs could be caused by increasingly thicker shells with organism age, and/or spawning-induced loss of biologically active tissue in adults. Consequently, future studies utilizing AFDM/DM (and presumably also AFDM/wet mass) ratios should carefully assess the potential influence of body size to ensure more reliable estimates of organism body mass.


2016 ◽  
Vol 37 (1) ◽  
pp. 203-230 ◽  
Author(s):  
Marianna Jacyna ◽  
Jolanta Żak

Abstract The paper touches the problem of applying simulation models to assess the reliability of services in transport networks. Investigation of the transport processes in terms of their reliability is a complex decision-making task. The paper describes a method for assessing the reliability of transport process on the base of the criterion of minimizing the normalized lost time of vehicles. The time is wasted in a result of conflict situations occurring in the transport network during the transport process. The study includes stochastic distributions of system input. It enables studying the quality parameters of the transport network equipment, including service providers working under different workload and all kinds of disturbances. The method uses simulation models. Simulation studies were performed with Java Modelling Tools.


2016 ◽  
Vol 9 (2) ◽  
pp. 36-38
Author(s):  
Журавлева ◽  
I. Zhuravleva

In article priority tasks of the strategy of development for suburban passenger transport are considered. The direction for optimization of efficiency of suburban passenger traffic is determined.


Sign in / Sign up

Export Citation Format

Share Document