scholarly journals System Dynamics Analysis of the Relationship between Transit Metropolis Construction and Sustainable Development of Urban Transportation—Case Study of Nanchang City, China

2020 ◽  
Vol 12 (7) ◽  
pp. 3028
Author(s):  
Yunqiang Xue ◽  
Lin Cheng ◽  
Kuang Wang ◽  
Jing An ◽  
Hongzhi Guan
Keyword(s):  
Sustainable Development ◽  
System Dynamics ◽  
Traffic Congestion ◽  
Simulation Analysis ◽  
Supply And Demand ◽  
Urban Transportation ◽  
Urban Environments ◽  
Motor Vehicles ◽  
The Sustainable Development ◽  
New Energy

In order to systematically analyze the benefits of transit metropolis construction, the system dynamics (SD) theory was used to construct the transit metropolis SD simulation model from the four subsystems of economy, society, environment, and transportation supply and demand. The validity of the SD model was verified by the social and economic data of Nanchang City and the operational data of the bus company, and the quantitative simulation analysis was carried out by taking the construction of the transit metropolis in Nanchang as an example. The simulation results show that, in 2020, the number of motor vehicles in Nanchang will reach 1.13 million and the urban population will reach 5.71 million. It is necessary to build a transit metropolis for the sustainable development of urban transportation. In order to complete the transit metropolis creation goal of 60% of the public transit mobility sharing rate, the proportion of public transport investment in the total transportation investment needs to be adjusted from 0.25 to 0.35. As a result, Nanchang City will improve after the peak traffic congestion in 2022, indicating that the construction of the transit metropolis will have a positive effect on Nanchang. By developing new energy vehicles and low-emission vehicles, vehicle emissions will drop from 0.05 tons/year to 0.04 tons/year, and overall nitrogen oxide emissions will fall by 70%, which is significant for urban environments. The research results provide theoretical support for the significance of transit metropolis construction, and promote the sustainable development of urban transportation.

scholarly journals The Model of Vehicle and Route Selection for Energy Saving

2021 ◽  
Vol 13 (8) ◽  
pp. 4528
Author(s):  
Olga Lingaitienė ◽  
Juozas Merkevičius ◽  
Vida Davidavičienė
Keyword(s):  
Sustainable Development ◽  
Fuel Consumption ◽  
Motor Vehicles ◽  
The Sustainable Development ◽  
Supply Chain Efficiency ◽  
The World Bank ◽  
Cargo Delivery ◽  
Efficiency And Effectiveness ◽  
The Cost ◽  
Source Use

The World Bank, United Nations, the Organization for Economic Cooperation and Development, and others are in line with the governments of countries that are strongly interested in the sustainable development of countries, regions, and enterprises. One of the aspects that affects the indicators and prospects of sustainable development is the efficiency of energy source use. Nationwide reductions in the greenhouse gas emissions of motor vehicles could have a direct effect on ambient temperature and reducing the effects of global warming, which can affect future environmental, societal, and economic development. Significant reductions in fuel consumption can be achieved by increasing the efficiency of use, and the performance, of current cargo vehicles. This aspect is directly related to cargo delivery systems and supply chain efficiency and effectiveness. The article solves the problem of increasing the effectiveness of cargo delivery and proposes a model that would minimize transportation costs that are directly related to fuel consumption, shortening transportation time. The model addresses the problem of a lack of models evaluating the efficiency of cargo to Lithuania that is using several different modes of transportation. For the solution to this problem, the article examines the complexity of the rational use of land and water vehicles depending on the type of cargo transported, the technical capabilities of the vehicles (loading, speed, environmental pollution, fuel consumption, etc.), and the type (cars, railways, ships). The novelty of the findings is based on the availability to select the most appropriate vehicles, on a case-by-case basis, from the available options, depending on their environmental performance and energy efficiency. This model, later in this article, is used for calculations of Lithuanian companies for selecting the most rational vehicle by identifying the most appropriate route, as well as assessing the dynamics of the economic and physical indicators. The model allows for creating dependencies between the main indicators characterizing the transport process—the cost, the time of transport, and the safety, taking into account the dynamics of economic and physical indicators, that lead to a very important issue—reducing the amount of energy required to provide products and services.

scholarly journals From gross domestic product to wellbeing: How alternative indicators can help connect the new economy with the Sustainable Development Goals

2019 ◽  
Vol 6 (3) ◽  
pp. 207-222 ◽  
Author(s):  
Lorenzo Fioramonti ◽  
Luca Coscieme ◽  
Lars F Mortensen
Keyword(s):  
Sustainable Development ◽  
Gross Domestic Product ◽  
Sustainable Development Goals ◽  
Business Models ◽  
Supply And Demand ◽  
Economic Transformation ◽  
Domestic Product ◽  
National Accounts ◽  
The Sustainable Development ◽  
Development Goals

In a 2014 issue of Nature, members of our research group called for abandoning the gross domestic product as the key indicator in economic policymaking. In this new article, we argue that a new post–gross domestic product economy focusing on wellbeing rather than material output is already emerging in the Anthropocene, thanks to the convergence of policy reforms and economic shifts. At the policy level, the Sustainable Development Goals require policymakers to protect ecosystems, promote greater equality, and focus on long-term equitable development. At the economy level, the provision of services has outpaced industrial production as the key driver of prosperity, with innovative business models optimizing the match between supply and demand and giving rise to a burgeoning “sharing economy”, which produces value to people while reducing output and costs. The economic transformation already underway is, however, delayed by an obsolete system of measurement of economic performance still dominated by the gross domestic product–based national accounts, which rewards the incumbent and disincentives the new. We show that a different approach to measuring wellbeing and prosperity is the “missing link” we need to connect recent evolutions in policy and the economy with a view to activating a sustainable development paradigm for a good Anthropocene.

scholarly journals Sustainable Deforestation Evaluation Model and System Dynamics Analysis

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Huirong Feng ◽  
C. W. Lim ◽  
Liqun Chen ◽  
Xinnian Zhou ◽  
Chengjun Zhou ◽  
...  
Keyword(s):  
Sustainable Development ◽  
System Dynamics ◽  
Evaluation System ◽  
Evaluation Model ◽  
Dynamic Effect ◽  
Visual Image ◽  
Sustainable Forestry ◽  
Flow Diagram ◽  
The Sustainable Development ◽  
Time Dynamic

The current study used the improved fuzzy analytic hierarchy process to construct a sustainable deforestation development evaluation system and evaluation model, which has refined a diversified system to evaluate the theory of sustainable deforestation development. Leveraging the visual image of the system dynamics causal and power flow diagram, we illustrated here that sustainable forestry development is a complex system that encompasses the interaction and dynamic development of ecology, economy, and society and has reflected the time dynamic effect of sustainable forestry development from the three combined effects. We compared experimental programs to prove the direct and indirect impacts of the ecological, economic, and social effects of the corresponding deforest techniques and fully reflected the importance of developing scientific and rational ecological harvesting and transportation technologies. Experimental and theoretical results illustrated that light cableway skidding is an ecoskidding method that is beneficial for the sustainable development of resources, the environment, the economy, and society and forecasted the broad potential applications of light cableway skidding in timber production technology. Furthermore, we discussed the sustainable development countermeasures of forest ecosystems from the aspects of causality, interaction, and harmony.

Sustainable Development of the Dongting Lake Flood Detention Basin’s Economic and Social Based on the System Dynamics

2014 ◽  
Vol 962-965 ◽  
pp. 2249-2252
Author(s):  
Yuan Jun Yu ◽  
Lin Wu
Keyword(s):  
Sustainable Development ◽  
System Dynamics ◽  
Population Control ◽  
Dongting Lake ◽  
Model Structure ◽  
System Dynamics Model ◽  
Dynamics Model ◽  
Exogenous Variables ◽  
Internal Factors ◽  
The Sustainable Development

System dynamics was used to analyze the sustainable development issues of flood detention basin form the perspective of economic, population, resources and environmental. Based on the analysis of the subsystems characteristics and internal factors affect between the various subsystems constructed Dongting Lake flood detention basin’s system dynamics model of sustainable development was build. Constraint and exogenous variables analysis based on the model structure was taken. And from the perspective of economic planning, population control and River Basin Compensation, offered proposals for the promotion of Dongting Lake flood detention basin’s sustainable development.

Simulation Study for Oasis-Type Urban Systems Sustainable Development - A Case Study on Wuwei City in Gansu Province

2013 ◽  
Vol 869-870 ◽  
pp. 134-141
Author(s):  
Bo Yang ◽  
Pei Ji Shi
Keyword(s):  
Sustainable Development ◽  
Economic Development ◽  
Environmental Pollution ◽  
Supply And Demand ◽  
Urban System ◽  
Development Trend ◽  
Gansu Province ◽  
Urban Systems ◽  
Steady Increase ◽  
The Sustainable Development

Oasis city ecological environment and socio-economic development is the only way to achieve regional sustainable development. The paper takes the use of Wuwei City in 2000-2010 statistics to simulate the next 10 years the sustainable development of the Urban System, using SD simulation model in system dynamics to comparative analysis three simulation program of complex systems including population, economy, water resources, land resources, environmental pollution and other subsystems, and explore the problems of Urban System sustainable development in Wuwei City in the future. The results showed that: only when the various factors within the system have maintained stable development trend, that steady economic development, population growth steady, steady increase water consumption, water emissions control increases, so that Wuwei City will maintain the situation of the balance between supply and demand of resources and environmental pollution, and improve and achieve ultimately the sustainable development of complex n Oasis city System.

scholarly journals The Research on Traffic Congestion Problem in Beijing Based on Random Effect Model

2021 ◽  
Vol 5 (3) ◽  
pp. p1
Author(s):  
Zhipeng Zhang ◽  
Chujun Zhao
Keyword(s):  
Traffic Congestion ◽  
Demand Curve ◽  
Rapid Development ◽  
Heavy Traffic ◽  
Supply And Demand ◽  
Random Effect ◽  
Random Effect Model ◽  
Economic Loss ◽  
Motor Vehicles ◽  
Traffic Light

With the advancement of urbanization and the rapid development of the economy, the number of motor vehicles has also increased sharply, which has led to the increasingly heavy traffic congestion problem, especially in the international metropolis like Beijing. It is more serious, bringing economic loss and seriously affecting its further development. Therefore, it is of great importance to solve the problem in Beijing. In response to the above issue, despite the introduction and implementation of a series of measures in Beijing, it is still unable to properly solve the traffic congestion problem. Today, traffic congestion in Beijing still exists. This paper will mainly start from the causes of traffic congestion, and analyze the problems and phenomena based on the random effects model to obtain the reasons. According to the goal of relieving the traffic congestion problem, we will use the traffic supply and demand theory combined with the actual traffic situation, establish the traffic light model, the travel optimization model and the automobile demand curve model. With the hypothesis, simulation and analysis, we drew the corresponding conclusions. At the same time, the corresponding policy recommendations were put forward to relieve the traffic congestion problem in Beijing.

scholarly journals Financing Dilemma of Minor enterprises in Post-epidemic Era and Its Suggestions-Taking Wuhan City as an Example

2021 ◽  
Vol 275 ◽  
pp. 01036
Author(s):  
Chenyi Zhao ◽  
Junyi Wang
Keyword(s):  
Sustainable Development ◽  
Economic Development ◽  
National Economy ◽  
Supply And Demand ◽  
Business Environment ◽  
Wuhan City ◽  
The Sustainable Development ◽  
Fund Allocation ◽  
Policy Suggestions ◽  
Financing Dilemma

Minor enterprises have made an indelible contribution to economic development, while financing has always been a problem hindering the sustainable development of them. Under the influence of the epidemic, the business environment of minor enterprises has changed, and the financing demand has also changed. However, the degree and scope of assistance are limited. There is a contradiction between supply and demand in fund allocation. Based on this, this project puts forward policy suggestions by studying the changes of financing demand and fund supplier of minor enterprises in Wuhan in the post epidemic era, which will help to solve the financing difficulties and promote healthy and sustainable development of the national economy.

scholarly journals Study on Sustainable Development of China’s New Energy Industry under the Background of Carbon Neutrality

2021 ◽  
Vol 248 ◽  
pp. 02021
Author(s):  
Jian Yuan ◽  
Yuxing An
Keyword(s):  
Sustainable Development ◽  
Rapid Development ◽  
Energy Industry ◽  
Energy Prices ◽  
Absorption Mechanism ◽  
The Sustainable Development ◽  
Carbon Neutrality ◽  
The Past ◽  
New Energy ◽  
Natural Gas Prices

The latest McKenzie Global Energy Outlook predicts that by 2030, new energy prices will be lower than existing coal and natural gas prices in most regions; by 2035, new energy sources (solar energy and wind energy) will account for more than 50% of the world’s electricity generation. The global new energy industry will continue to accelerate in the future after years of its rapid development. Compared to the past, China’s new energy industry has become an important industry leader instead of industry followers a decade ago. However, under the past achievements and carbon neutral constraints, China’s new energy industry still needs to be strengthened and completed in the policies and regulations, absorption mechanism, technical research and development to promote the sustainable development of China’s new energy industry.

A Systems Approach for Modeling Interactions Among the Sustainable Development Goals Part 2

2019 ◽  
Vol 8 (1) ◽  
pp. 41-59 ◽  
Author(s):  
David Zelinka ◽  
Bernard Amadei
Keyword(s):  
Sustainable Development ◽  
System Dynamics ◽  
Sustainable Development Goals ◽  
Impact Analysis ◽  
Systems Approach ◽  
Soft Systems ◽  
The Sustainable Development ◽  
Development Goals ◽  
The Impact ◽  
Over Time

This article presents a methodology using system dynamics to model the time-dependent progress of each one of the 17 Sustainable Development Goals (SDGs), as well as their mutual interactions. The hard-systems approach presented herein complements a soft-systems, cross-impact analysis approach presented in part 1. To accomplish this, a modified logistic innovation-diffusion model is used to represent the progress of individual SDGs over time. Then, matrix transposition is used to model the SDGs' interactions. Combining these two techniques into one system dynamics model, the authors propose an analytical, quantifiable, and easily learned tool to understand the complex interplay among the SDGs as a system. The new web-based tool can be used to analyze several scenarios of the SDGs over time to understand the impact of a certain policy or economic intervention. This article is the second of a sequence of two papers analyzing the interactions between the SDGs in a systemic manner.

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