Abstract Aiming at the crane scheduling problem for uncertainty tasks in multi-crane situation, this article proposes a deep reinforcement learning-based modeling method that is not dependent on mathematical planning and has certain generality. First, process integrated into learning framework which orbit space of transportation task environmental information intelligent agent. Second, interact...

due to the considerable growth in the worldwide container transportation, optimization of container terminal operations is becoming highly needed to rationalize the use of logistics resources. for this reason, we focus our study on the quay crane scheduling problem (qcsp), which is a core task of managing maritime container terminals. from this planning problem arise two decisions to be made: t...

A U-shaped automated container terminal (ACT) has been proposed for the first time globally and adopted to construct Beibu Gulf Port ACT. In this ACT layout, double cantilevered rail crane (DCRC) simultaneously provides loading unloading services external trucks (ECTs) automatic guided vehicles (AGVs) entering yard. The DCRC a complex scheduling coupling relationship with AGV ECT, its mathemati...

Daewoo Shipbuilding Company, one of the largest shipbuilders in the world, has been much troubled with planning and scheduling its production process for a long time since its establishment. To solve the problems, Korea Advanced Institute of Science and Technology (KAIST) and Daewoo have been jointly performing the DAS (DAewoo Shipbuilding Scheduling) Project for three years from 1991 to 1993. ...

One of the primary modes for worldwide trade of goods is maritime transport, which is exposed to rapid growth. In order to handle the increase of the traffic in ports, optimization of port operations has been studied and implemented in the past. In container terminals, significant amount of work has been done in the field of large scale optimization. In published literature, the main focus lies...

This section contains an overview of the different functional areas of a marine container terminal and a summary of the main types of container handling systems. The main advantages and disadvantages of each type of handling system are also summarized without focusing on technical details. 2.1 Functional Areas of Terminal Operations As every other terminal, a container terminal is a complex sys...

in this paper, we focus on a continuously deteriorating critical equipment which its failure cannot be measured by cost criterion. for these types of systems like military systems, nuclear systems, etc it is extremely important to avoid failure during the actual operation of the system. in this paper we propose an approach which constrains failure probability to a pre-specified value. this valu...

Abstract Background In 2017, smaller container ports handled approximately 22% of total containerized cargo. Nowadays liner operators are calling on those with larger ships and demanding fast efficient turnaround the in port. This is possible only if berth has right capacities, working properly achieves a good productivity level. Methodology Productivity level does not depend quay crane capacit...