scholarly journals DFS ADS-B Implementation in High Density Radar Controlled Airspace – Experiences and Challenges

10.29007/8jkt ◽  
2019 ◽  
Author(s):  
Stefan Stanzel
Keyword(s):  
Data Integrity ◽  
Radio Spectrum ◽  
Safety Performance ◽  
Safety Requirements ◽  
Independent Validation ◽  
Surveillance Technology ◽  
Navigation Service ◽  
Data Continuity ◽  
Derived Data ◽  
Seamless Service

The German Air Navigation Service Provider (ANSP) DFS Deutsche Flugsicherung (DFS) is operating a surveillance infrastructure mainly based on radars and multilateration systems, which provides surveillance information and receives aircraft derived data. The implementation and use of the new surveillance technology Automatic Dependent Surveillance – Broadcast (ADS-B) has to provide benefits in terms of safety, performance or costs. DFS operations require a permanent double surveillance coverage for the area of responsibility. This requirement actually means triple surveillance coverage (in order to provide a seamless service also in case of system outages or planned down times). DFS is implementing ADS-B as the third surveillance layer to reduce costs. Each surveillance layer has to fulfil the performance and safety requirements independently. The fulfilment of safety requirements, integrity and continuity, will require validation of the passively received ADS-B information.Data integrity and continuity need to be considered w.r.t. safety requirements, but may also have to address security. The integrity of ADS-B data can be ensured either by comparison with data from other surveillance sensors (dependent validation) or by analyzing the properties of the data itself (independent validation). The independent validation of the ADS-B data is a necessary prerequisite for providing a self-contained independent surveillance layer using the ADS-B technology. In a first step, DFS will implement ADS-B as a dependent layer: (1) for validation of the assumption on surveillance performance, (2) to gain experience on data integrity and data continuity, (3) to prepare possible mitigations e.g. against spoofing or jamming and (4) to recognize potential shortcomings in the airborne installations and identify possible mitigations. This first step will support necessary developments (e.g. ADS-B Validation Unit) to move with ADS-B towards the use as an independent surveillance layer reducing infrastructure costs and improve radio spectrum protection.

scholarly journals Independent validation of software safety requirements for systems of systems

2010 ◽  
Author(s):  
Stephen B. Driskell ◽  
Judy Murphy ◽  
James Bret Michael ◽  
Man-Tak Shing
Keyword(s):  
Software Safety ◽  
Systems Of Systems ◽  
Safety Requirements ◽  
Independent Validation

scholarly journals Community review of Southern Ocean satellite data needs

2016 ◽  
Vol 29 (2) ◽  
pp. 97-138 ◽  
Author(s):  
A. Pope ◽  
P. Wagner ◽  
R. Johnson ◽  
J.D. Shutler ◽  
J. Baeseman ◽  
...  
Keyword(s):  
Southern Ocean ◽  
Satellite Data ◽  
Marine Biology ◽  
Sea Surface ◽  
Sea Surface Salinity ◽  
Surface Salinity ◽  
Starting Point ◽  
Data Continuity ◽  
Derived Data

AbstractThis review represents the Southern Ocean community’s satellite data needs for the coming decade. Developed through widespread engagement and incorporating perspectives from a range of stakeholders (both research and operational), it is designed as an important community-driven strategy paper that provides the rationale and information required for future planning and investment. The Southern Ocean is vast but globally connected, and the communities that require satellite-derived data in the region are diverse. This review includes many observable variables, including sea ice properties, sea surface temperature, sea surface height, atmospheric parameters, marine biology (both micro and macro) and related activities, terrestrial cryospheric connections, sea surface salinity, and a discussion of coincident andin situdata collection. Recommendations include commitment to data continuity, increases in particular capabilities (sensor types, spatial, temporal), improvements in dissemination of data/products/uncertainties, and innovation in calibration/validation capabilities. Full recommendations are detailed by variable as well as summarized. This review provides a starting point for scientists to understand more about Southern Ocean processes and their global roles, for funders to understand the desires of the community, for commercial operators to safely conduct their activities in the Southern Ocean, and for space agencies to gain greater impact from Southern Ocean-related acquisitions and missions.

Recent Activities and New Challenges for the EUR Organization

2021 ◽  
Author(s):  
Vincent Sorel
Keyword(s):  
Nuclear Power ◽  
Safety Performance ◽  
International Standards ◽  
Light Water Reactors ◽  
Design Assessment ◽  
Safety Requirements ◽  
Large Size ◽  
The Status ◽  
Technical Specifications ◽  
Water Reactors

Abstract Since 1991, the European Utility Requirements (EUR) organization has been developing and promoting harmonized technical specifications for the new mid- and large-size LWR designs to be proposed by the vendors in Europe. The EUR Organization issues and, from time to time, modifies and updates a report entitled “the EUR Document”. It consists of a comprehensive set of requirements covering the whole Nuclear Power Plant (NPP) and encompasses all aspects (safety, performance, competitiveness) and all parts of a NPP (nuclear island and conventional island). The main EUR Organization’s results obtained during the last years are in the three following fields: (1) The latest revision, Revision E, of the EUR Document was issued in December 2016. It includes revised safety requirements taking into account the most recent European and international standards issued by WENRA, IAEA and IEC after the Fukushima-Daishi accident. (2) The assessment of new designs. The presentation briefly recalls the EUR design assessment objectives and process and the status of the different EUR assessment projects. (3) Preparation of evolution of the EUR Document towards integration of requirements for Small Modular Light Water Reactors (SMLWR). The paper concludes by an overview of the future activities of the EUR Organization.

Development, Crash Testing, and Evaluation of Steel-Post Trailing-End Guardrail Anchorage System

2021 ◽  
pp. 036119812110319
Author(s):  
Mojdeh Asadollahi Pajouh ◽  
Karla Lechtenberg ◽  
Ronald Faller ◽  
Tewodros Yosef
Keyword(s):  
Safety Performance ◽  
Reverse Direction ◽  
Roadside Safety ◽  
Safety Requirements ◽  
Component Testing ◽  
Crash Testing ◽  
Anchorage System ◽  
Structural Capacity ◽  
Departments Of Transportation ◽  
Crash Tests

Trailing-end guardrail anchorage systems are widely used by most state departments of transportation (DOTs) and generally consist of simple adaptations of crashworthy end terminals. The safety performance and structural capacity of these trailing-end anchorage systems, when reverse-direction impacts occur near the end, is imperative in crashworthiness of guardrail systems. In 2013, a non-proprietary trailing-end anchorage system with a modified breakaway cable terminal (BCT) was developed by the Midwest Roadside Safety Facility (MwRSF) for the Midwest Guardrail System (MGS). Although this trailing-end guardrail anchorage system adequately met the Manual for Assessing Safety Hardware (MASH) TL-3 safety requirements, the use of two breakaway wood posts was deemed by some users to have several drawbacks. Thus, there was a critical need to develop a non-wood option to anchor the downstream end of the W-beam guardrail system, which led to the need to develop a steel-post trailing-end guardrail anchorage system for use with the MGS. Following the design and component testing of such a system, two full-scale crash tests were performed according to the MASH 2016 test designation nos. 3-37a and 3-37b. In the first test, a 2270P pickup truck struck the guardrail system and was adequately contained and redirected. In the second test, an 1100C small car struck the barrier and safely gated through the barrier. Both tests were deemed acceptable according to TL-3 safety criteria in MASH 2016. Recommendations are provided for the installation of a steel-post trailing-end guardrail anchorage system when used in combination with MGS.

scholarly journals PENILAIAN BUDAYA KESELAMATAN DENGAN METODE SCART (SAFETY CULTURE ASSESSMENT REVIEW TEAM) PADA BADAN PENGELOLA INSTALASI NUKLIR

2019 ◽  
Vol 14 (1) ◽  
pp. 27
Author(s):  
Ratna Purwaningsih ◽  
Naniek Utami Handayani ◽  
Nurul Miranda
Keyword(s):  
Safety Culture ◽  
Pairwise Comparison ◽  
Likert Scale ◽  
Regulatory Compliance ◽  
Safety Performance ◽  
Purposive Sampling ◽  
Safety Requirements ◽  
Review Team ◽  
Culture Characteristics ◽  
Nuclear Installation

Safety Culture Assesment Review Team (SCART) adalah metode untuk memberikan penilaian mandiri yang valid pada budaya keselamatan dalam organisasi yang mengelola instalasi yang memiliki potensi bahaya. Penelitian ini bertujuan untuk mengetahui tingkat budaya keselamatan pada organisasi yang mengelola instalasi nuklir di Indonesia dengan menggunakan SCART, dan mengidentifikasi atribut atribut budaya keselamatan yang memerlukan perbaikan. SCART terdiri atas lima karakteristik budaya keselamatan yang dibentuk dari 37 atribut. Tiap atribut memiliki bobot kepentingan yang ditentukan dengan teknik AHP perbandingan berpasangan. Penilaian kondisi atribut oleh responden yang dipilih dengan purposive sampling. Kuisioner disusun pada penilaian skala likert 1 sampai 5. Hasil dari penelitian menyimpulkan bahwa implementasi budaya keselamatan meraih skor 626.77 menduduki peringkat C yang berarti “kinerja keselamatan di bawah ketentuan yang disyaratkan dan akan menyebabkan risiko pelanggaran terhadap kepatuhan persyaratan keselamatan”. Atribut budaya keselamatan yang memiliki nilai rendah diantaranya kurangnya kepercayaan antar bagian dalam organisasi, kurangnya kompetensi individu dan kurangnya kepatuhan terhadap peraturan. Maka perlu dilakukan upaya upaya untuk meningkatkan kondisi dari ketiga atribut tersebut dalam organisasi. Abstract The Safety Culture Assessment Review Team (SCART) is a method to provide independent assessments that apply to safety culture within organizations that operate potentially hazardous installations. This study aims to determine the level of safety culture in organization that operate nuclear installation in Indonesia by using SCART method, and identification of safety culture attributes that require improvement. SCART consists of five safety culture characteristics that are formed from 37 attributes. Each attribute has a weight of importance determined by pairwise comparison using AHP techniques. Respondents selected by purposive sampling. Questionnaire prepared on the likert scale 1 to 5. The results research conclude that the implementation of safety culture reached a score of 626.77 was ranked C class which means “Safety performance under the conditions required and will cause the risk of violation of compliance with safety requirements”. Safety culture attribute that has low value are lack of trust between the parts of the organization, lack of individual competence and lack of regulatory compliance. Therefore, efforts should be made to improve the conditions of these three attributes within the organization.Keywords: Safety Culture Assessment; SCART; safety characteristics; attributes

Data Integrity and Data Governance

2018 ◽  
Keyword(s):  
Data Integrity ◽  
Data Governance

Predictive Validity of a Selection Procedure for Air Traffic Controller Trainees

2013 ◽  
Vol 3 (1) ◽  
pp. 19-27 ◽  
Author(s):  
Yvonne Pecena ◽  
Doris Keye ◽  
Kristin Conzelmann ◽  
Dietrich Grasshoff ◽  
Peter Maschke ◽  
...  
Keyword(s):  
Predictive Validity ◽  
Selection Procedure ◽  
Air Traffic ◽  
Performance Criteria ◽  
Training Phase ◽  
Air Traffic Controller ◽  
Training Performance ◽  
Navigation Service ◽  
German Aerospace ◽  
Training Success

The job of an air traffic controller (ATCO) is very specific and demanding. The assessment of potential suitable candidates requires a customized and efficient selection procedure. The German Aerospace Center DLR conducts a highly selective, multiple-stage selection procedure for ab initio ATCO applicants for the German Air Navigation Service Provider DFS. Successful applicants start their training with a training phase at the DFS Academy and then continue with a unit training phase in live traffic. ATCO validity studies are scarcely reported in the international scientific literature and have mainly been conducted in a military context with only small and male samples. This validation study encompasses the data from 430 DFS ATCO trainees, starting with candidate selection and extending to the completion of their training. Validity analyses involved the prediction of training success and several training performance criteria derived from initial training. The final training success rate of about 79% was highly satisfactory and higher than that of other countries. The findings demonstrated that all stages of the selection procedure showed predictive validity toward training performance. Among the best predictors were scores measuring attention and multitasking ability, and ratings on general motivation from the interview.

Got the Results, Now What Do You Do?

2012 ◽  
Vol 2 (1) ◽  
pp. 25-33 ◽  
Author(s):  
Michaela Heese
Keyword(s):  
Safety Culture ◽  
Success Factors ◽  
Service Providers ◽  
Transformation Process ◽  
Driving Safety ◽  
Critical Success ◽  
Culture Transformation ◽  
Survey Results ◽  
Air Navigation Services ◽  
Navigation Service

Members of the Civil Air Navigation Services Organisation have committed themselves to measure and improve safety culture within their organizations by 2013 ( CANSO, 2010 ). This paper attempts to offer support to air navigation service providers that have already implemented a standardized safety culture survey approach, in the process of transforming their safety culture based on existing survey results. First, an overview of the state of the art with respect to safety culture is presented. Then the application of the CANSO safety culture model from theory into practice is demonstrated based on four selected case studies. Finally, a summary of practical examples for driving safety culture change is provided, and critical success factors supporting the safety culture transformation process are discussed.

Financial decision makers' perceptions of safety performance, programs, and personnel

2008 ◽  
Author(s):  
Sarah DeArmond ◽  
Yueng-Hsiang Huang ◽  
Peter Chen ◽  
Theodore Courtney
Keyword(s):  
Safety Performance ◽  
Decision Makers ◽  
Financial Decision ◽  
Perceptions Of Safety

Transformational leadership and safety performance: The mediating role of meaningful work

2008 ◽  
Author(s):  
M. Inness ◽  
J. Barling ◽  
N. Turner
Keyword(s):  
Transformational Leadership ◽  
Meaningful Work ◽  
Safety Performance ◽  
Mediating Role
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