scholarly journals Trade-Offs in Competitive Transport Operations

Economies ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 56 ◽  
Author(s):  
Usman Akbar ◽  
Akash Kumar ◽  
Hameed Khan ◽  
Muhammad Asif Khan ◽  
Khansa Parvaiz ◽  
...  

One of the goals of developing a transport corridor is to promote socio-economic development by improving connectivity and sustainable transport operations, which largely depends on the operational strategy. Trade-off policies can be important tools for gaining the competitive advantage of road transport corridors, and thus, help facilitate sustainable growth and welfare. This article uses a case-based approach to observe the trade-offs in the first phase of transport infrastructure development, and then, in the second stage, further explores the trade-off variables in the transport operations strategy under the China-Pakistan Economic Corridor (CPEC). The results from the three cases of the parallel route system of the CPEC indicate that trade-off is an easily understandable and applicable method, which can foresee the operational gains or compromises for significant welfare of the regions. The implications of the trade-off are two fold, first is the “importance” of the trade-off, which is related to its impact on operational competitiveness. The other is the “sensitivity” of the trade-off, in terms of the change that will be caused to one variable when changing the other. The trade-off concept can be used for several landlocked transport corridors to achieve a competitive edge in transit trade.

Author(s):  
P.I. Tarasov

Research objective: studies of economic and transport infrastructure development in the Arctic and Northern Territories of Russia. Research methodology: analysis of transport infrastructure in the Republic of Sakha (Yakutia) and the types of railways used in Russia. Results: economic development of any region is proportional to the development of the road transport infrastructure and logistics. When a conventional railway is operated in the Arctic conditions, it is not always possible to maintain a cargo turnover that would ensure its efficient use, and transshipment from one mode of transport to another is very problematic. A new type of railway is proposed, i.e. a light railway. Conclusions: the proposed new type of transport offers all the main advantages of narrow gauge railroads (high speed of construction, efficiency, etc.) and helps to eliminate their main disadvantage, i.e. the need for transloading when moving from a narrow gauge to the conventional one with the width of 1520 mm, along with a significant reduction in capital costs.


2019 ◽  
Vol 11 (19) ◽  
pp. 5248 ◽  
Author(s):  
A Quium

There can be two broad objectives of transport corridor development: to improve efficiency in the transport and logistics processes in the corridor, and to generate economic development in the corridor region, capitalizing on improved connectivity and transport networks. This paper focuses on the second objective of corridor development. A transport corridor can become a tool for spatially balanced and more sustainable economic development and human well-being in the corridor region. Considering the promise of this approach, this paper undertakes a critical review of transport infrastructure development studies undertaken in Sub-Saharan and South Asian countries to find evidence of infrastructure development impacts. Evidence gathered from the review suggests that transport infrastructure development can have significant positive impacts on economic growth, income, poverty, employment, equity, and inclusion. However, there can be important trade-offs between economy and welfare and environmental quality, and the distribution of impacts can be uneven. The paper also considers how some of the transport corridor development issues are addressed and complementary interventions that may be required, and, finally, discusses lessons learned from the review and their policy implications which can be useful for future corridor designs, and provides suggestions of research studies to fill the current knowledge gaps.


Author(s):  
Nwanneka Tonnie Okoye ◽  
Samuel Oji Iheukwumere ◽  
Kelechi Friday Nkwocha ◽  
Ifunanya Rita Igboanugo

Author(s):  
Saidal Akbari ◽  
Khandker Nurul Habib

This research investigates the commuting trade-offs between individuals in two-worker households with home and work locations in the Greater Toronto Area (GTA). A commuting trade-off occurs when a home relocation results in one worker incurring a higher commute distance for the other worker to work closer to the home location. This research uses stated preference data and multilevel modeling to demonstrate that two-worker households adjust their home–work spatial configuration which results in commuting trade-offs between individuals. This research uses the angle between the two workplaces, measured at the home location, as a variable in its empirical model. This variable is a descriptor of the home–work spatial configuration and a predictor of total household commute distance. The modeling results indicate an inverse relationship between total household commute distance and the difference between individual commutes. This suggests that individuals in two-worker households trade off their individual commute distances and, in that process, reduce total household commute distance. A key policy implication arising from this research relates to the jobs–housing balance within a catchment area. Two-worker households have been regarded as a hindrance to achieving jobs–housing balance as the two work locations present a constraint in relocating the home near both work locations. However, as this research shows, workers will trade off their individual commute distances such that a home relocation results in a shorter commute distance for one worker and longer commute distance for the other.


Author(s):  
Bertha Z. Osei-Hwedie ◽  
Napoleon Kurantin

Infrastructure development is considered a key factor in promoting economic growth and attracting foreign investors for sustainable production and productivity. Conversely, inadequate levels of infrastructure constrain economic growth, a situation developing countries find themselves in. This requires the government to invest in infrastructure supplemented by external financing. This chapter, therefore, discusses how levels of infrastructure development affect economic growth in Ghana, since 1986 to date. The focus is on road transport infrastructure and its impact on economic growth under successive Ghanaian governments. Using the Cobb-Douglas production function and Vector Auto-regression (VAR) approach our analysis shows a positive relationship between infrastructure development and economic growth. This explains governments' improved allocation and expenditure on infrastructure development and maintenance in the 2000s. Ghana governments' attempts to plan and prioritize development of infrastructure, roads in particular, and create a culture of maintenance are targeted at raising the country's competitiveness and attractiveness to foster growth of all sectors of the economy.


Author(s):  
Erwin Anggadjaja ◽  
Ian V. McLoughlin

Wireless sensor networks (WSNs) have been used to observe and monitor many environments for specific purposes and in many ways over the past few years. A number of operational trade-offs are possible when planning a WSN, influencing coverage, bandwidth, redundancy, lifetime, expandability, and so on. However, for systems in potentially hazardous locations or those experiencing restricted access, system unreliability tends to be the greatest operational concern. In the process of creating reliable WSNs for hazardous locations, it is highly desirable to ensure both an accurate and a reliable system design prior to deployment, and with as little unnecessary trade-off as possible. Especially as sensing systems become larger and more complex, and potential failure modes increase, this becomes more difficult to achieve. In an attempt to answer the question of reliability assurance, the authors investigate WSNs in the context of accurate and fast modelling of such networks. A comprehensive comparison of three modelling tools (ns-2, OPNET, and OMNeT++) is explored in this chapter, concluding that OMNeT++ is worthy of study as an alternative to the other two more established tools. As an illustration of the use of OMNeT++, two modelling schemes are simulated and compared against the theory to determine both bit-level correctness, but also to demonstrate ease of modelling and analysis.


2021 ◽  
Vol 23 (2) ◽  
pp. 39-45
Author(s):  
NIKITA OSOKIN ◽  
◽  
NIKITA POPOV ◽  

The level of transport infrastructure development directly affects the rate of economic growth. In 2018, in Russia, 67.1 % of the total volume of transported goods were delivered by road transport. However, we cannot talk about the full realization of the road transportation system since 57.6 % of public roads do not meet regulatory requirements. The available statistics indicate that, first of all, attention should be paid to the condition of the roads. The article analyzes the system for road maintenance in the constituent entities of the Russian Federation, considers the main regulatory documents governing the activities of road work suppliers and executive authorities in the field of road maintenance. The article examines and analyzes the advanced foreign experience in the field of technologies for servicing roads in the winter. As the result of analysis, the authors propose introducing performance-based contracts into the field of the road sector. The creation of an economically feasible form of performance-based contracts can lead to a decrease in the cost of road maintenance by 10-40 %.


Author(s):  
Yue Ma ◽  
Junlong Zhou ◽  
Thidapat Chantem ◽  
Robert P. Dick ◽  
X. Sharon Hu

AbstractMulti-processor systems on a chip (MPSoCs) are widely deployed in real-time embedded systems. In such systems, soft-error reliability (caused by transient faults) and lifetime reliability (caused by permanent faults) are both imperative design concerns. Most existing work considers only one of the two classes of faults. Unfortunately, techniques that increase one may adversely impact the other. Achieving high overall reliability requires a trade-off of soft-error reliability and lifetime reliability. In this chapter, we first introduce concepts and models associated with the two reliability metrics, then present two techniques that optimize them separately. Finally, we show how to make appropriate trade-offs using two case studies involving “big–little” type MPSoCs and CPU–GPU integrated MPSoCs.


2021 ◽  
Vol 11 (3) ◽  
pp. 304-315
Author(s):  
N. A. Popov ◽  
N. A. Osokin

The level of transport infrastructure development is one of the key determinants of economic growth. In 2018, 67.1% of all transported goods in Russia were delivered via road transport. However, Russia’s motor transport system has yet to come close to fulfilling its full potential – 57.6% of public roads do not meet regulatory maintenance requirements. The prevailing statistics highlights the task of ensuring the safety of roads. This issue is especially relevant during winter months, when the roads experience maximum climatic and physico-chemical effects. This article analyzes the road safety system of the constituent entities of the Russian Federation, considers the main regulatory documents governing the activities of road work suppliers and executive authorities in the field of road maintenance. The authors analyzed the best foreign practices in road maintenance policy. The main result of the study is the proposal to introduce a mechanism for servicing roads using a performance based contract to replace to cost based road maintenance contracts, which are the most widely applied in Russia.


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