scholarly journals Increasing Port Performance through Port Navigation Safety Assessment using the Formal Safety Assessment Method (Case Study Port of Tanjung Priok - Indonesia)

2019 ◽  
Vol 130 ◽  
pp. 01025
Author(s):  
Sahlan Ridwan ◽  
Sunaryo
Keyword(s):  
Traffic Management ◽  
Safety Assessment ◽  
Assessment Method ◽  
Improvement Strategy ◽  
Maritime Logistics ◽  
Formal Safety Assessment ◽  
Traffic Management System ◽  
The Cost ◽  
Navigation Safety

The study is aimed to assess the navigation safety in the port surrounding the area as part of the Indonesian Government�s efforts to increase the port performance and minimize the cost of maritime logistics. The port navigation system and infrastructure such as vessels traffic management system, navigation lanes, port basin, quay, etc. play an important role in determining the productivity and efficiency of the port, especially in the busy port such as Tanjung Priok, Indonesia. Any accident would interrupt port activities and creates unnecessary costs. Formal Safety Assessment method, as introduced by the International Maritime Organization was implemented in the study. The assessment was carried out using qualitative and quantitative risks analyses, based on the available data and information gathered from various sources. It was identified that accidents occurred in the port waterfront were mainly due to the ships, environment, human factors, and management. Results of the assessment were then used as the basis for proposing an improvement strategy.

High density European Rail Traffic Management System (HD-ERTMS) for urban railway nodes: The case study of Rome

2021 ◽  
Vol 17 ◽  
pp. 100232
Author(s):  
Federico Cuppi ◽  
Valeria Vignali ◽  
Claudio Lantieri ◽  
Luca Rapagnà ◽  
Nicola Dimola ◽  
...  
Keyword(s):  
Traffic Management ◽  
Management System ◽  
High Density ◽  
Traffic Management System ◽  
Rail Traffic

scholarly journals Automated optimal flight planning based on the aircraft intent description language

2018 ◽  
Vol 233 (3) ◽  
pp. 928-948
Author(s):  
Daniel González-Arribas ◽  
Manuel Soler ◽  
Javier López-Leonés ◽  
Enrique Casado ◽  
Manuel Sanjurjo-Rivo
Keyword(s):  
Optimal Control ◽  
Traffic Management ◽  
Modular Design ◽  
Air Traffic Management ◽  
Generation Process ◽  
Trajectory Prediction ◽  
Description Language ◽  
Traffic Management System ◽  
Automated Tools

The future air traffic management system is to be built around the notion of trajectory-based operations. It will rely on automated tools related to trajectory prediction in order to define, share, revise, negotiate and update the trajectory of the aircraft before and during the flight, in some case, in near real time. This paper illustrates how existing standards on trajectory description such as the aircraft intent description language can be enhanced including optimisation capabilities based on numerical optimal control. The Aircraft Intent Description Language is a formal language that has been created in order to describe aircraft intent information in a rigorous, unambiguous and flexible manner. It has been implemented in a platform for a modular design of the trajectory generation process. A case study is presented to explore its effectiveness and identify the requirements and needs to generate optimised aircraft intents with higher automation and flexibility. Preliminary results show the suitability of numerical optimal control to design optimised aircraft intents based on the aircraft intent description language.

Simulation Laboratory for Evaluating Dynamic Traffic Management Systems

2000 ◽  
Vol 1710 (1) ◽  
pp. 122-130 ◽  
Author(s):  
Qi Yang ◽  
Haris N. Koutsopoulos ◽  
Moshe E. Ben-Akiva
Keyword(s):  
Traffic Management ◽  
Transportation Systems ◽  
Management Systems ◽  
Route Guidance ◽  
Dynamic Traffic ◽  
Traveler Information ◽  
Traveler Information Systems ◽  
Simulation Based ◽  
Traffic Management System

Advanced traffic management systems (ATMS) and advanced traveler information systems (ATIS) are promising technologies for achieving efficiency in the operation of transportation systems. A simulation-based laboratory environment, MITSIMLab, is presented that is designed for testing and evaluation of dynamic traffic management systems. The core of MITSIMLab is a microscopic traffic simulator (MITSIM) and a traffic management simulator (TMS). MITSIM represents traffic flows in the network, and the TMS represents the traffic management system under evaluation. An important feature of MITSIMLab is its ability to model ATMS or ATIS that generate traffic controls and route guidance based on predicted traffic conditions. A graphical user interface allows visualization of the simulation, including animation of vehicle movements. An ATIS case study with a realistic network is also presented to demonstrate the functionality of MITSIMLab.

scholarly journals Community Detection for Air Traffic Networks and Its Application in Strategic Flight Planning

2021 ◽  
Vol 13 (16) ◽  
pp. 8924
Author(s):  
Silvia Zaoli ◽  
Giovanni Scaini ◽  
Lorenzo Castelli
Keyword(s):  
Community Detection ◽  
Traffic Management ◽  
Air Traffic ◽  
Computational Time ◽  
Acceptable Solution ◽  
Flight Planning ◽  
Detection Algorithms ◽  
Traffic Management System ◽  
Definition Of ◽  
The Cost

An environmentally and economically sustainable air traffic management system must rely on fast models to assess and compare various alternatives and decisions at the different flight planning levels. Due to the numerous interactions between flights, mathematical models to manage the traffic can be computationally time-consuming when considering a large number of flights to be optimised at the same time. Focusing on demand–capacity imbalances, this paper proposes an approach that permits to quickly obtain an approximate but acceptable solution of this problem. The approach consists in partitioning flights into subgroups that influence each other only weakly, solving the problem independently in each subgroup, and then aggregating the solutions. The core of the approach is a method to build a network representing the interactions among flights, and several options for the definition of an interaction are tested. The network is then partitioned with existing community detection algorithms. The results show that applying a strategic flight planning optimisation algorithm on each subgroup independently reduces significantly the computational time with respect to its application on the entire European air traffic network, at the cost of few and small violations of sector capacity constraints, much smaller than those actually observed on the day of operations.

scholarly journals A Novel Performance Framework and Methodology to Analyze the Impact of 4D Trajectory Based Operations in the Future Air Traffic Management System

2018 ◽  
Vol 2018 ◽  
pp. 1-17 ◽  
Author(s):  
Sergio Ruiz ◽  
Javier Lopez Leones ◽  
Andrea Ranieri
Keyword(s):  
Traffic Management ◽  
Air Traffic Management ◽  
Air Traffic ◽  
Performance Framework ◽  
Performance Requirements ◽  
The Future ◽  
Traffic Management System ◽  
And Performance ◽  
The Impact

The introduction of new Air Traffic Management (ATM) concepts such as Trajectory Based Operations (TBO) may produce a significant impact in all performance areas, that is, safety, capacity, flight efficiency, and others. The performance framework in use today has been tailored to the operational needs of the current ATM system and must evolve to fulfill the new needs and challenges brought by the TBO content. This paper presents a novel performance assessment framework and methodology adapted to the TBO concept. This framework can assess the key performance areas (KPAs) of safety, capacity, and flight efficiency; equity and fairness are also considered in this research, in line with recent ATM trends. A case study is presented to show the applicability of the framework and to illustrate how some of the complex interdependencies among KPAs can be captured with the proposed approach. This case study explores the TBO concept of “strategic 4D trajectory deconfliction,” where the early separation tasks of 4D trajectories at multisector level are assessed. The framework presented in this paper could potentially support the target-setting and performance requirements identification that should be fulfilled in the future ATM system to ensure determined levels of performance.

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