نتایج جستجو برای: air traffic

تعداد نتایج: 295603  

2015
Junfei Xie Yan Wan

Convective weather events cause capacity reduction in the National Airspace System (NAS), and lead to traffic congestion. To mitigate congestion, strategic air traffic flow management plans traffic flows at a long look-ahead time (2-15 hour). Planning at this timeframe is challenging, due to the wide possibility of weather events and requirement for real-time management. To conquer these challe...

Journal: :Epidemiology 1997
B Brunekreef N A Janssen J de Hartog H Harssema M Knape P van Vliet

The contribution of motorized traffic to air pollution is widely recognized, but relatively few studies have looked at the respiratory health status of subjects living near busy roads. We studied children in six areas located near major motorways in the Netherlands. We measured lung function in the children, and we assessed their exposure to traffic-related air pollution using separate traffic ...

Journal: :Human factors 2001
Ulla Metzger Raja Parasuraman

Proposals for air traffic management such as Free Flight call for a transfer of responsibility for separation between aircraft from air traffic controllers (ATCos) to pilots. Under many proposals, the role of the ATCo will change from one of active control to passive monitoring. The present study directly compared these types of control with respect to ATCo mental workload, conflict detection, ...

Journal: Pollution 2016

A four year long research programme divided into four phases has been designed for the first time to assess the combined Noise-Air quality and combined exposure to Noise-Air pollution at the curbside open-air microenvironment of Kolkata city, India. The results and the findings of the different phases of study had already been published. The objective of the review work is to fuse the findings ...

2000
Peter Hazell

Studies of the relationships between property rights and technology adoption are complicated in several respects. First, there are challenges involved in defining and measuring property rights and tenure security. Second, there are several different valid purposes for undertaking such studies and each purpose may require a different approach. Third, there are a number of difficult theoretical a...

Journal: :Health physics 2012
Wout Joseph Francis Goeminne Günter Vermeeren Leen Verloock Luc Martens

Electromagnetic exposure (occupational and general public) to 14 types of air traffic control (ATC) systems is assessed. Measurement methods are proposed for in situ exposure assessment of these ATC systems. In total, 50 sites are investigated at 1,073 locations in the frequency range of 255 kHz to 24 GHz. For all installations, typical and maximal exposure values for workers and the general pu...

Journal: :Proceedings of National Aviation University 2015

2015
Sofie Ivarsson

In 2014, the Swedish Civil Contingencies Agency (MSB) carried out a comprehensive crisis communication multi-sector exercise. To evaluate communication in exercises there is a need for involving the public as they are the primary target group in most crises. Systematically involving the public in evaluation of exercises has only been done a few times in Sweden and there are no known internation...

2008
Albert Casullo

There are four approaches to analyzing the concept of a priori knowledge. The primary target of the reductive approach is the concept of a priori justification. The primary target of the nonreductive approach is the concept of a priori knowledge. There are two approaches to analyzing each primary target. A theory-neutral approach provides an analysis that does not presuppose any general theory ...

2017
Rachel B Smith Daniela Fecht John Gulliver Sean D Beevers David Dajnak Marta Blangiardo Rebecca E Ghosh Anna L Hansell Frank J Kelly H Ross Anderson Mireille B Toledano

Objective To investigate the relation between exposure to both air and noise pollution from road traffic and birth weight outcomes.Design Retrospective population based cohort study.Setting Greater London and surrounding counties up to the M25 motorway (2317 km2), UK, from 2006 to 2010.Participants 540 365 singleton term live births.Main outcome measures Term low birth weight (LBW), small for g...

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