scholarly journals Use of System Dynamics Forecasting Model in Transportation System to Reduce Vehicular Emissions-A Mathematical Approach

2020 ◽  
Vol 1531 ◽  
pp. 012118
Author(s):  
Sandeep Singh ◽  
Bishnu Kant Shukla ◽  
Pushpendra Kumar Sharma
2020 ◽  
Vol 43 (7) ◽  
pp. 670-697
Author(s):  
Erma Suryani ◽  
Rully A. Hendrawan ◽  
Philip F.E. Adipraja ◽  
Arif Wibisono ◽  
Basuki Widodo ◽  
...  

2020 ◽  
Author(s):  
BO PENG ◽  
Shuo Liu ◽  
Lei Xu ◽  
Zhen He

Abstract Purpose: To predict and analyze the spatial and temporal distribution of combat attrition.Methods: Construct a combat process simulation and combat attrition forecasting model using system dynamics methods and introduce macroscopic attrition data to the attrition forecast model by using agents to decompose the attrition data, assigning battle wound information according to specific ratios.Results: Using the attrition forecast model, based on system dynamics, the causal loop and stock-flow relationship of the combat operation process may be constructed by combining the specific combat mission with an analysis of the factors that influence the operation, such as the lethality of the weapons and the defensive capability of the two sides. The damage levels of the various targets on the two sides in combat are converted into attrition data. Based on these data, an agent modeling method is used to extract the macroscopic attrition data derived from the battle attrition forecast model. By constructing a correspondence between the combat target damage level and the various types of battle injuries, the injury to each casualty may be modeled and assigned a value in order to complete the mapping from attrition to injury.Conclusions: This work establishes an attrition forecasting model based on system dynamics and an agent-based simulation model for the occurrence of casualties. It can estimate the temporal and spatial distribution of attrition in combat.


Author(s):  
Xuecai Xu ◽  
Xiangjian Luo

The coordination planning between land use and transportation system is an important premise of solving urban transportation problems and realizing land use integration. This study investigates the interactive and feedback relationship between land use and transportation system from the perspective of access management. By integrating the land use and traffic data from Las Vegas Metropolitan area with the system dynamics model, the causal relationship and causal loop diagrams (CLDs) are introduced to analyze the cause-and-effect relationship and quantitative relationship between the factors of the combined system of land use and transportation, and then sub-models partition and system simulation are performed. The systems dynamics model is established by analyzing the relationship between a series of access management techniques, traffic characteristics, and land use features. The results show that system dynamics model can be used as an effective alternative to model the symbiosis relationship of land use and transportation system for urban planning and construction.


2012 ◽  
Vol 461 ◽  
pp. 474-477
Author(s):  
Quan Li Huang ◽  
Jing Tao Yue ◽  
Yu Lan Ding

According to the establishment of the simulation model about urban integrated transportation system, this paper established kinematics model of the urban integrated transportation system by the core application of system dynamics theory, technical methods and special tools. This model provided a scientific basis and technical methods to intelligent control and Optimizing the decision-making for urban integrated transportation.


SIMULATION ◽  
2014 ◽  
Vol 90 (6) ◽  
pp. 706-716 ◽  
Author(s):  
Bin Yu ◽  
Chao Zhang ◽  
Lu Kong ◽  
Hong-Li Bao ◽  
Wen-Si Wang ◽  
...  

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