Prof. Dr.-Ing. Carlos Jahn

Address

Hamburg University of Technology
Institute of Maritime Logistics
Am Schwarzenberg-Campus 4 (D)
21073 Hamburg

 

Contact Details

Office: building D room 5.002a
Registration via Ms. Beckmann (Room 5.003)
Phone: +49 40 42878 4450
Fax: +49 40 42731 4478
E-mail: carlos.jahn(at)tuhh(dot)de
ORCiD: 0000-0002-5409-0748



Publications (excerpt)

2024

[182404]
Title: Impact of Rubber-Tired Gantry Crane Dimension on Container Terminal Productivity. <em>Computational Logistics</em>
Written by: Kastner, Marvin and Jahn, Carlos
in: (2022).
Volume: Number:
on pages: 74-88
Chapter:
Editor: In de Armas, Jesica and Ramalhinho, Helena and Vo&szlig;, Stefan (Eds.)
Publisher: Springer International Publishing:
Series:
Address: Cham
Edition:
ISBN: 978-3-031-16579-5
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1007/978-3-031-16579-5_6
URL: https://link.springer.com/chapter/10.1007/978-3-031-16579-5_6
ARXIVID:
PMID:

[www]

Note:

Abstract: When a Container Terminal (CT) is being newly planned or re-designed, the yard equipment must be selected before the yard layout can be planned. Commonly, Rubber-Tired Gantry cranes (RTGs) are selected for stacking the laden containers in the yard. These are available in different dimensions, typically designed to span over yard blocks between five to nine containers wide. The lift heights usually support four, five, or six containers that are stacked on top of each other. But what are the implications of the selected RTG dimension on the yard productivity? In a step-by-step analysis, the stacking density and yard productivity are estimated for the different RTG dimensions. The yard area of the CT MSC Valencia serves as an example and reference. It is shown that the stacking density ranges from 233 to 320 Twenty-foot Ground Slot (TGS) per hectare (ha) and from 853 to 1744 Twenty-foot Equivalent Unit (TEU) per ha. When the simplistic rule of one RTG per yard block is applied, with increasing RTG spans the yard productivity decreases from 360 to 240 moves per hour. An analysis of operational data indicates that the crane cycle times differ slightly but are less relevant in daily operations. It is concluded that RTG deployment strategies (avoiding idling times) should be further investigated considering a range of commonly purchased RTG dimensions. Furthermore, the impact of higher container stacks on the number of reshuffles needs to be revisited in this context

2023

[182404]
Title: Impact of Rubber-Tired Gantry Crane Dimension on Container Terminal Productivity. <em>Computational Logistics</em>
Written by: Kastner, Marvin and Jahn, Carlos
in: (2022).
Volume: Number:
on pages: 74-88
Chapter:
Editor: In de Armas, Jesica and Ramalhinho, Helena and Vo&szlig;, Stefan (Eds.)
Publisher: Springer International Publishing:
Series:
Address: Cham
Edition:
ISBN: 978-3-031-16579-5
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1007/978-3-031-16579-5_6
URL: https://link.springer.com/chapter/10.1007/978-3-031-16579-5_6
ARXIVID:
PMID:

[www]

Note:

Abstract: When a Container Terminal (CT) is being newly planned or re-designed, the yard equipment must be selected before the yard layout can be planned. Commonly, Rubber-Tired Gantry cranes (RTGs) are selected for stacking the laden containers in the yard. These are available in different dimensions, typically designed to span over yard blocks between five to nine containers wide. The lift heights usually support four, five, or six containers that are stacked on top of each other. But what are the implications of the selected RTG dimension on the yard productivity? In a step-by-step analysis, the stacking density and yard productivity are estimated for the different RTG dimensions. The yard area of the CT MSC Valencia serves as an example and reference. It is shown that the stacking density ranges from 233 to 320 Twenty-foot Ground Slot (TGS) per hectare (ha) and from 853 to 1744 Twenty-foot Equivalent Unit (TEU) per ha. When the simplistic rule of one RTG per yard block is applied, with increasing RTG spans the yard productivity decreases from 360 to 240 moves per hour. An analysis of operational data indicates that the crane cycle times differ slightly but are less relevant in daily operations. It is concluded that RTG deployment strategies (avoiding idling times) should be further investigated considering a range of commonly purchased RTG dimensions. Furthermore, the impact of higher container stacks on the number of reshuffles needs to be revisited in this context

2022

[182404]
Title: Impact of Rubber-Tired Gantry Crane Dimension on Container Terminal Productivity. <em>Computational Logistics</em>
Written by: Kastner, Marvin and Jahn, Carlos
in: (2022).
Volume: Number:
on pages: 74-88
Chapter:
Editor: In de Armas, Jesica and Ramalhinho, Helena and Vo&szlig;, Stefan (Eds.)
Publisher: Springer International Publishing:
Series:
Address: Cham
Edition:
ISBN: 978-3-031-16579-5
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1007/978-3-031-16579-5_6
URL: https://link.springer.com/chapter/10.1007/978-3-031-16579-5_6
ARXIVID:
PMID:

[www]

Note:

Abstract: When a Container Terminal (CT) is being newly planned or re-designed, the yard equipment must be selected before the yard layout can be planned. Commonly, Rubber-Tired Gantry cranes (RTGs) are selected for stacking the laden containers in the yard. These are available in different dimensions, typically designed to span over yard blocks between five to nine containers wide. The lift heights usually support four, five, or six containers that are stacked on top of each other. But what are the implications of the selected RTG dimension on the yard productivity? In a step-by-step analysis, the stacking density and yard productivity are estimated for the different RTG dimensions. The yard area of the CT MSC Valencia serves as an example and reference. It is shown that the stacking density ranges from 233 to 320 Twenty-foot Ground Slot (TGS) per hectare (ha) and from 853 to 1744 Twenty-foot Equivalent Unit (TEU) per ha. When the simplistic rule of one RTG per yard block is applied, with increasing RTG spans the yard productivity decreases from 360 to 240 moves per hour. An analysis of operational data indicates that the crane cycle times differ slightly but are less relevant in daily operations. It is concluded that RTG deployment strategies (avoiding idling times) should be further investigated considering a range of commonly purchased RTG dimensions. Furthermore, the impact of higher container stacks on the number of reshuffles needs to be revisited in this context

2021

[182404]
Title: Impact of Rubber-Tired Gantry Crane Dimension on Container Terminal Productivity. <em>Computational Logistics</em>
Written by: Kastner, Marvin and Jahn, Carlos
in: (2022).
Volume: Number:
on pages: 74-88
Chapter:
Editor: In de Armas, Jesica and Ramalhinho, Helena and Vo&szlig;, Stefan (Eds.)
Publisher: Springer International Publishing:
Series:
Address: Cham
Edition:
ISBN: 978-3-031-16579-5
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1007/978-3-031-16579-5_6
URL: https://link.springer.com/chapter/10.1007/978-3-031-16579-5_6
ARXIVID:
PMID:

[www]

Note:

Abstract: When a Container Terminal (CT) is being newly planned or re-designed, the yard equipment must be selected before the yard layout can be planned. Commonly, Rubber-Tired Gantry cranes (RTGs) are selected for stacking the laden containers in the yard. These are available in different dimensions, typically designed to span over yard blocks between five to nine containers wide. The lift heights usually support four, five, or six containers that are stacked on top of each other. But what are the implications of the selected RTG dimension on the yard productivity? In a step-by-step analysis, the stacking density and yard productivity are estimated for the different RTG dimensions. The yard area of the CT MSC Valencia serves as an example and reference. It is shown that the stacking density ranges from 233 to 320 Twenty-foot Ground Slot (TGS) per hectare (ha) and from 853 to 1744 Twenty-foot Equivalent Unit (TEU) per ha. When the simplistic rule of one RTG per yard block is applied, with increasing RTG spans the yard productivity decreases from 360 to 240 moves per hour. An analysis of operational data indicates that the crane cycle times differ slightly but are less relevant in daily operations. It is concluded that RTG deployment strategies (avoiding idling times) should be further investigated considering a range of commonly purchased RTG dimensions. Furthermore, the impact of higher container stacks on the number of reshuffles needs to be revisited in this context

2020

[182404]
Title: Impact of Rubber-Tired Gantry Crane Dimension on Container Terminal Productivity. <em>Computational Logistics</em>
Written by: Kastner, Marvin and Jahn, Carlos
in: (2022).
Volume: Number:
on pages: 74-88
Chapter:
Editor: In de Armas, Jesica and Ramalhinho, Helena and Vo&szlig;, Stefan (Eds.)
Publisher: Springer International Publishing:
Series:
Address: Cham
Edition:
ISBN: 978-3-031-16579-5
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1007/978-3-031-16579-5_6
URL: https://link.springer.com/chapter/10.1007/978-3-031-16579-5_6
ARXIVID:
PMID:

[www]

Note:

Abstract: When a Container Terminal (CT) is being newly planned or re-designed, the yard equipment must be selected before the yard layout can be planned. Commonly, Rubber-Tired Gantry cranes (RTGs) are selected for stacking the laden containers in the yard. These are available in different dimensions, typically designed to span over yard blocks between five to nine containers wide. The lift heights usually support four, five, or six containers that are stacked on top of each other. But what are the implications of the selected RTG dimension on the yard productivity? In a step-by-step analysis, the stacking density and yard productivity are estimated for the different RTG dimensions. The yard area of the CT MSC Valencia serves as an example and reference. It is shown that the stacking density ranges from 233 to 320 Twenty-foot Ground Slot (TGS) per hectare (ha) and from 853 to 1744 Twenty-foot Equivalent Unit (TEU) per ha. When the simplistic rule of one RTG per yard block is applied, with increasing RTG spans the yard productivity decreases from 360 to 240 moves per hour. An analysis of operational data indicates that the crane cycle times differ slightly but are less relevant in daily operations. It is concluded that RTG deployment strategies (avoiding idling times) should be further investigated considering a range of commonly purchased RTG dimensions. Furthermore, the impact of higher container stacks on the number of reshuffles needs to be revisited in this context

2019

[182404]
Title: Impact of Rubber-Tired Gantry Crane Dimension on Container Terminal Productivity. <em>Computational Logistics</em>
Written by: Kastner, Marvin and Jahn, Carlos
in: (2022).
Volume: Number:
on pages: 74-88
Chapter:
Editor: In de Armas, Jesica and Ramalhinho, Helena and Vo&szlig;, Stefan (Eds.)
Publisher: Springer International Publishing:
Series:
Address: Cham
Edition:
ISBN: 978-3-031-16579-5
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1007/978-3-031-16579-5_6
URL: https://link.springer.com/chapter/10.1007/978-3-031-16579-5_6
ARXIVID:
PMID:

[www]

Note:

Abstract: When a Container Terminal (CT) is being newly planned or re-designed, the yard equipment must be selected before the yard layout can be planned. Commonly, Rubber-Tired Gantry cranes (RTGs) are selected for stacking the laden containers in the yard. These are available in different dimensions, typically designed to span over yard blocks between five to nine containers wide. The lift heights usually support four, five, or six containers that are stacked on top of each other. But what are the implications of the selected RTG dimension on the yard productivity? In a step-by-step analysis, the stacking density and yard productivity are estimated for the different RTG dimensions. The yard area of the CT MSC Valencia serves as an example and reference. It is shown that the stacking density ranges from 233 to 320 Twenty-foot Ground Slot (TGS) per hectare (ha) and from 853 to 1744 Twenty-foot Equivalent Unit (TEU) per ha. When the simplistic rule of one RTG per yard block is applied, with increasing RTG spans the yard productivity decreases from 360 to 240 moves per hour. An analysis of operational data indicates that the crane cycle times differ slightly but are less relevant in daily operations. It is concluded that RTG deployment strategies (avoiding idling times) should be further investigated considering a range of commonly purchased RTG dimensions. Furthermore, the impact of higher container stacks on the number of reshuffles needs to be revisited in this context

2018

[182404]
Title: Impact of Rubber-Tired Gantry Crane Dimension on Container Terminal Productivity. <em>Computational Logistics</em>
Written by: Kastner, Marvin and Jahn, Carlos
in: (2022).
Volume: Number:
on pages: 74-88
Chapter:
Editor: In de Armas, Jesica and Ramalhinho, Helena and Vo&szlig;, Stefan (Eds.)
Publisher: Springer International Publishing:
Series:
Address: Cham
Edition:
ISBN: 978-3-031-16579-5
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1007/978-3-031-16579-5_6
URL: https://link.springer.com/chapter/10.1007/978-3-031-16579-5_6
ARXIVID:
PMID:

[www]

Note:

Abstract: When a Container Terminal (CT) is being newly planned or re-designed, the yard equipment must be selected before the yard layout can be planned. Commonly, Rubber-Tired Gantry cranes (RTGs) are selected for stacking the laden containers in the yard. These are available in different dimensions, typically designed to span over yard blocks between five to nine containers wide. The lift heights usually support four, five, or six containers that are stacked on top of each other. But what are the implications of the selected RTG dimension on the yard productivity? In a step-by-step analysis, the stacking density and yard productivity are estimated for the different RTG dimensions. The yard area of the CT MSC Valencia serves as an example and reference. It is shown that the stacking density ranges from 233 to 320 Twenty-foot Ground Slot (TGS) per hectare (ha) and from 853 to 1744 Twenty-foot Equivalent Unit (TEU) per ha. When the simplistic rule of one RTG per yard block is applied, with increasing RTG spans the yard productivity decreases from 360 to 240 moves per hour. An analysis of operational data indicates that the crane cycle times differ slightly but are less relevant in daily operations. It is concluded that RTG deployment strategies (avoiding idling times) should be further investigated considering a range of commonly purchased RTG dimensions. Furthermore, the impact of higher container stacks on the number of reshuffles needs to be revisited in this context

2017

[182404]
Title: Impact of Rubber-Tired Gantry Crane Dimension on Container Terminal Productivity. <em>Computational Logistics</em>
Written by: Kastner, Marvin and Jahn, Carlos
in: (2022).
Volume: Number:
on pages: 74-88
Chapter:
Editor: In de Armas, Jesica and Ramalhinho, Helena and Vo&szlig;, Stefan (Eds.)
Publisher: Springer International Publishing:
Series:
Address: Cham
Edition:
ISBN: 978-3-031-16579-5
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1007/978-3-031-16579-5_6
URL: https://link.springer.com/chapter/10.1007/978-3-031-16579-5_6
ARXIVID:
PMID:

[www]

Note:

Abstract: When a Container Terminal (CT) is being newly planned or re-designed, the yard equipment must be selected before the yard layout can be planned. Commonly, Rubber-Tired Gantry cranes (RTGs) are selected for stacking the laden containers in the yard. These are available in different dimensions, typically designed to span over yard blocks between five to nine containers wide. The lift heights usually support four, five, or six containers that are stacked on top of each other. But what are the implications of the selected RTG dimension on the yard productivity? In a step-by-step analysis, the stacking density and yard productivity are estimated for the different RTG dimensions. The yard area of the CT MSC Valencia serves as an example and reference. It is shown that the stacking density ranges from 233 to 320 Twenty-foot Ground Slot (TGS) per hectare (ha) and from 853 to 1744 Twenty-foot Equivalent Unit (TEU) per ha. When the simplistic rule of one RTG per yard block is applied, with increasing RTG spans the yard productivity decreases from 360 to 240 moves per hour. An analysis of operational data indicates that the crane cycle times differ slightly but are less relevant in daily operations. It is concluded that RTG deployment strategies (avoiding idling times) should be further investigated considering a range of commonly purchased RTG dimensions. Furthermore, the impact of higher container stacks on the number of reshuffles needs to be revisited in this context

2016

[182404]
Title: Impact of Rubber-Tired Gantry Crane Dimension on Container Terminal Productivity. <em>Computational Logistics</em>
Written by: Kastner, Marvin and Jahn, Carlos
in: (2022).
Volume: Number:
on pages: 74-88
Chapter:
Editor: In de Armas, Jesica and Ramalhinho, Helena and Vo&szlig;, Stefan (Eds.)
Publisher: Springer International Publishing:
Series:
Address: Cham
Edition:
ISBN: 978-3-031-16579-5
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1007/978-3-031-16579-5_6
URL: https://link.springer.com/chapter/10.1007/978-3-031-16579-5_6
ARXIVID:
PMID:

[www]

Note:

Abstract: When a Container Terminal (CT) is being newly planned or re-designed, the yard equipment must be selected before the yard layout can be planned. Commonly, Rubber-Tired Gantry cranes (RTGs) are selected for stacking the laden containers in the yard. These are available in different dimensions, typically designed to span over yard blocks between five to nine containers wide. The lift heights usually support four, five, or six containers that are stacked on top of each other. But what are the implications of the selected RTG dimension on the yard productivity? In a step-by-step analysis, the stacking density and yard productivity are estimated for the different RTG dimensions. The yard area of the CT MSC Valencia serves as an example and reference. It is shown that the stacking density ranges from 233 to 320 Twenty-foot Ground Slot (TGS) per hectare (ha) and from 853 to 1744 Twenty-foot Equivalent Unit (TEU) per ha. When the simplistic rule of one RTG per yard block is applied, with increasing RTG spans the yard productivity decreases from 360 to 240 moves per hour. An analysis of operational data indicates that the crane cycle times differ slightly but are less relevant in daily operations. It is concluded that RTG deployment strategies (avoiding idling times) should be further investigated considering a range of commonly purchased RTG dimensions. Furthermore, the impact of higher container stacks on the number of reshuffles needs to be revisited in this context

2015

[182404]
Title: Impact of Rubber-Tired Gantry Crane Dimension on Container Terminal Productivity. <em>Computational Logistics</em>
Written by: Kastner, Marvin and Jahn, Carlos
in: (2022).
Volume: Number:
on pages: 74-88
Chapter:
Editor: In de Armas, Jesica and Ramalhinho, Helena and Vo&szlig;, Stefan (Eds.)
Publisher: Springer International Publishing:
Series:
Address: Cham
Edition:
ISBN: 978-3-031-16579-5
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1007/978-3-031-16579-5_6
URL: https://link.springer.com/chapter/10.1007/978-3-031-16579-5_6
ARXIVID:
PMID:

[www]

Note:

Abstract: When a Container Terminal (CT) is being newly planned or re-designed, the yard equipment must be selected before the yard layout can be planned. Commonly, Rubber-Tired Gantry cranes (RTGs) are selected for stacking the laden containers in the yard. These are available in different dimensions, typically designed to span over yard blocks between five to nine containers wide. The lift heights usually support four, five, or six containers that are stacked on top of each other. But what are the implications of the selected RTG dimension on the yard productivity? In a step-by-step analysis, the stacking density and yard productivity are estimated for the different RTG dimensions. The yard area of the CT MSC Valencia serves as an example and reference. It is shown that the stacking density ranges from 233 to 320 Twenty-foot Ground Slot (TGS) per hectare (ha) and from 853 to 1744 Twenty-foot Equivalent Unit (TEU) per ha. When the simplistic rule of one RTG per yard block is applied, with increasing RTG spans the yard productivity decreases from 360 to 240 moves per hour. An analysis of operational data indicates that the crane cycle times differ slightly but are less relevant in daily operations. It is concluded that RTG deployment strategies (avoiding idling times) should be further investigated considering a range of commonly purchased RTG dimensions. Furthermore, the impact of higher container stacks on the number of reshuffles needs to be revisited in this context

2014

[182404]
Title: Impact of Rubber-Tired Gantry Crane Dimension on Container Terminal Productivity. <em>Computational Logistics</em>
Written by: Kastner, Marvin and Jahn, Carlos
in: (2022).
Volume: Number:
on pages: 74-88
Chapter:
Editor: In de Armas, Jesica and Ramalhinho, Helena and Vo&szlig;, Stefan (Eds.)
Publisher: Springer International Publishing:
Series:
Address: Cham
Edition:
ISBN: 978-3-031-16579-5
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1007/978-3-031-16579-5_6
URL: https://link.springer.com/chapter/10.1007/978-3-031-16579-5_6
ARXIVID:
PMID:

[www]

Note:

Abstract: When a Container Terminal (CT) is being newly planned or re-designed, the yard equipment must be selected before the yard layout can be planned. Commonly, Rubber-Tired Gantry cranes (RTGs) are selected for stacking the laden containers in the yard. These are available in different dimensions, typically designed to span over yard blocks between five to nine containers wide. The lift heights usually support four, five, or six containers that are stacked on top of each other. But what are the implications of the selected RTG dimension on the yard productivity? In a step-by-step analysis, the stacking density and yard productivity are estimated for the different RTG dimensions. The yard area of the CT MSC Valencia serves as an example and reference. It is shown that the stacking density ranges from 233 to 320 Twenty-foot Ground Slot (TGS) per hectare (ha) and from 853 to 1744 Twenty-foot Equivalent Unit (TEU) per ha. When the simplistic rule of one RTG per yard block is applied, with increasing RTG spans the yard productivity decreases from 360 to 240 moves per hour. An analysis of operational data indicates that the crane cycle times differ slightly but are less relevant in daily operations. It is concluded that RTG deployment strategies (avoiding idling times) should be further investigated considering a range of commonly purchased RTG dimensions. Furthermore, the impact of higher container stacks on the number of reshuffles needs to be revisited in this context

2013

[182404]
Title: Impact of Rubber-Tired Gantry Crane Dimension on Container Terminal Productivity. <em>Computational Logistics</em>
Written by: Kastner, Marvin and Jahn, Carlos
in: (2022).
Volume: Number:
on pages: 74-88
Chapter:
Editor: In de Armas, Jesica and Ramalhinho, Helena and Vo&szlig;, Stefan (Eds.)
Publisher: Springer International Publishing:
Series:
Address: Cham
Edition:
ISBN: 978-3-031-16579-5
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1007/978-3-031-16579-5_6
URL: https://link.springer.com/chapter/10.1007/978-3-031-16579-5_6
ARXIVID:
PMID:

[www]

Note:

Abstract: When a Container Terminal (CT) is being newly planned or re-designed, the yard equipment must be selected before the yard layout can be planned. Commonly, Rubber-Tired Gantry cranes (RTGs) are selected for stacking the laden containers in the yard. These are available in different dimensions, typically designed to span over yard blocks between five to nine containers wide. The lift heights usually support four, five, or six containers that are stacked on top of each other. But what are the implications of the selected RTG dimension on the yard productivity? In a step-by-step analysis, the stacking density and yard productivity are estimated for the different RTG dimensions. The yard area of the CT MSC Valencia serves as an example and reference. It is shown that the stacking density ranges from 233 to 320 Twenty-foot Ground Slot (TGS) per hectare (ha) and from 853 to 1744 Twenty-foot Equivalent Unit (TEU) per ha. When the simplistic rule of one RTG per yard block is applied, with increasing RTG spans the yard productivity decreases from 360 to 240 moves per hour. An analysis of operational data indicates that the crane cycle times differ slightly but are less relevant in daily operations. It is concluded that RTG deployment strategies (avoiding idling times) should be further investigated considering a range of commonly purchased RTG dimensions. Furthermore, the impact of higher container stacks on the number of reshuffles needs to be revisited in this context