694. Yard capacity and external truck quotas planning: a case study in Chile
Invited abstract in session TD-32: Container Stacking and Yard Planning-2, stream Maritime and Port Logistics.
Tuesday, 14:30-16:00Room: Maurice Keyworth 1.09
Authors (first author is the speaker)
| 1. | Rosa G. González-Ramírez
|
| Universidad de Los Andes, Chile | |
| 2. | Karol Suchan
|
| Escuela de Informática y Telecomunicaciones, Universidad Diego Portales | |
| 3. | Sebastian Muñoz-Herrera
|
| School of Engineering, Universidad del Desarrollo |
Abstract
In this study, we examine a real-case scenario of a multipurpose terminal in Chile for landside operations to coordinate truck arrivals. The terminal currently operates with an appointment system for import containers, where port managers assign strict appointments to external trucks based on the unloading sequence (direct dispatch) or offer an alternative schedule with additional container handling fees (indirect dispatch). On the other hand, trucks for export operations can arrive randomly within a stacking window of 3 to 5 days before the vessel's arrival.
Terminal managers aim to introduce a truck appointment system for export operations to reduce congestion and truck turnaround times of external trucks. This requires balancing truck arrivals across different time zones each day and the yard's workload and vehicle traffic. Therefore, we propose a workload assignment model to allocate tasks to the available yard cranes over a one-shift planning horizon (eight periods of one hour each). The aim is to determine the yard's slack capacity to receive external trucks for incoming vessels while performing loading and unloading tasks for vessels already moored and dispatching import containers unloaded in prior shifts. Using historical data provided by the terminal, we conducted numerical analyses to compare the workload assignment solutions implemented by the terminal with our proposed model and recommend truck quotas considering container groups.
Keywords
- Maritime applications
- Transportation
- Logistics
Status: accepted
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