Agile Simulation Analysis for Automated Container Terminal and Intermodal Facility Development and Planning

Ports 2013 ◽  
2013 ◽  
Author(s):  
Yu (Alan) Zhang ◽  
Thomas Baldwin ◽  
Larry Nye ◽  
Michael McCarthy ◽  
Michael Richter ◽  
...  
2021 ◽  
Vol 11 (15) ◽  
pp. 6922
Author(s):  
Jeongmin Kim ◽  
Ellen J. Hong ◽  
Youngjee Yang ◽  
Kwang Ryel Ryu

In this paper, we claim that the operation schedule of automated stacking cranes (ASC) in the storage yard of automated container terminals can be built effectively and efficiently by using a crane dispatching policy, and propose a noisy optimization algorithm named N-RTS that can derive such a policy efficiently. To select a job for an ASC, our dispatching policy uses a multi-criteria scoring function to calculate the score of each candidate job using a weighted summation of the evaluations in those criteria. As the calculated score depends on the respective weights of these criteria, and thus a different weight vector gives rise to a different best candidate, a weight vector can be deemed as a policy. A good weight vector, or policy, can be found by a simulation-based search where a candidate policy is evaluated through a computationally expensive simulation of applying the policy to some operation scenarios. We may simplify the simulation to save time but at the cost of sacrificing the evaluation accuracy. N-RTS copes with this dilemma by maintaining a good balance between exploration and exploitation. Experimental results show that the policy derived by N-RTS outperforms other ASC scheduling methods. We also conducted additional experiments using some benchmark functions to validate the performance of N-RTS.


2020 ◽  
Vol 206 ◽  
pp. 03004
Author(s):  
Qiao Jianzhe ◽  
Shou Youping ◽  
Zhao Junjie

In general, transportation of Dangerous Goods in the port and shipping industry is mainly based on the container. This paper summarized the types of container terminal accidents, and put forward a method to select source of pollutants, and showed pollution range of typical accidents, provided the basis for the decision of management department. Taking a domestic container terminal as an example, the calculation results show that, under the premise of taking corresponding measures, the pollution range of accidents is not wide, and the risk is controllable.


2020 ◽  
Vol 114 ◽  
pp. 241-271 ◽  
Author(s):  
Xuchao Chen ◽  
Shiwei He ◽  
Yongxiang Zhang ◽  
Lu (Carol) Tong ◽  
Pan Shang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document