Related Experiment Video
Updated: May 15, 2026
11:41
Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation
Published on: February 1, 2020
Communicating intended routes in ECDIS: evaluating technological change
Thomas Porathe1, Margareta Lützhöft, Gesa Praetorius
1Chalmers University of Technology, Department of Shipping and Marine Technology, Maritime Human Factors, SE-412 96 Gothenburg, Sweden.
Accident; Analysis and Prevention
|January 16, 2013
Summary
Sharing future ship intentions via Electronic Chart Display and Information System (ECDIS) waypoints may lead to unintended consequences. Crews simulated negotiating crossing situations by adjusting waypoints, a behavior needing further research for COLREGs compliance.
Area of Science:
- Maritime safety and navigation technology.
- Human-computer interaction in maritime systems.
Background:
- Misunderstandings in ship intentions are a primary cause of maritime accidents.
- Current navigation practices lack a standardized method for pre-communicating intentions.
Purpose of the Study:
- To evaluate potential unintended consequences of displaying ship intentions on Electronic Chart Display and Information System (ECDIS).
- To investigate novel navigation behaviors emerging from enhanced intention-sharing systems.
Main Methods:
- System simulation of bridge operations.
- Observation and analysis of crew behavior during simulated crossing scenarios.
Main Results:
- An unanticipated behavior emerged where crews manipulated waypoints to negotiate crossing situations proactively.
- This waypoint manipulation mimicked verbal negotiation over VHF radio.
Conclusions:
- Displaying intentions via ECDIS waypoints could foster new interaction dynamics.
- Further research is required to assess the implications of this emergent behavior on COLREGs (International Regulations for Preventing Collisions at Sea).
Related Concept Videos
01:17Design Example: Alignment of a Road Line Using GIS
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
02:20Routes of Persuasion
Persuasion is the process of changing our attitude toward something based on some kind of communication. Much of the persuasion we experience comes from outside forces. How do people convince others to change their attitudes, beliefs, and behaviors? What communications do you receive that attempt to persuade you to change your attitudes, beliefs, and behaviors?
01:21Manipulation and Analysis
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
01:29Econometric Views (EViews)
Econometric Views, often stylized as EViews, is a package that merges statistical analysis with econometric studies. It is designed to provide tools for time series analysis, forecasting, and econometric model simulation. The software originated from MicroTSP software and has evolved significantly since its inception in 1981. The history of EViews is marked by a continuous effort to enhance its computational speed and user interface. It was initially developed for large computing systems but...
01:20Elevation of Intermediate Points on Vertical Curves
Vertical curves are essential in roadway design because they provide smooth transitions between varying roadway grades. Designing vertical curves involves calculating intermediate elevations and identifying the curve's highest or lowest point, which is essential for optimal roadway performance.Intermediate elevations on a vertical curve are determined using the tangent offset method. This method considers the initial elevation at the start of the curve, the grades, and the curve's geometry. The...
01:22Role of Ephrin-Eph Signalling in Intestinal Stem Cell Renewal
Erythropoietin-producing hepatocellular carcinoma receptor (Eph) and its ligand, Eph receptor-interacting protein (Ephrin) were first discovered in the human carcinoma cell line, hence the name. Ephrin-Eph interaction guides cells to reach their appropriate location in adult tissues. They also play an essential role in the immune system by helping in immune cell migration, adhesion, and activation. Based on their structure and function, Eph is divided into two classes — EphA and EphB.