Evaluation of the effects of one year's operation of the dynamic preferential runway system

The FAA introduced an experimental aircraft operations program at JFK Airport called the Dynamic Preferential Runway System (DPRS) in the summer of 1971. The program is designed to distribute air traffic as equally as possible over the surrounding communities, to limit periods of continuous overflight and to vary the same hours of overflight from day to day. After a full year's operation, an evaluation was made of the system's effectiveness. All of the operation's goals were moderately achieved with the greatest relief in reduced overflight afforded the most heavily impacted areas. Few residents, however, were aware of DPRS or felt that it had greatly reduced annoyance or represented a major effort by the aircraft authorities. Statistical analyses of reported annoyance obtained from two independent surveys in 1969 and 1972 reveal limited reductions in annoyance in 1972, with shifts from reported high annoyance to moderate annoyance

Problems pilots face involving wind shear

Educating pilots and the aviation industry about wind shears presents a major problem associated with this meteorological phenomenon. The pilot's second most pressing problem is the need for a language to discuss wind shear encounters with other pilots so that the reaction of the aircraft to the wind shear encounter can be accurately described. Another problem is the flight director which gives a centered pitch command for a given angular displacement from the glide slope. It was suggested that they should instead be called flight path command and should not center unless the aircraft is actually correcting to the flight path

ADDRESSING GAPS IN THE DELIVERY OF COMMUNITY SERVICES: THE CASE OF ONE INNER-CITY COMMUNITY

The need for more effective approaches to the delivery of health and social services in inner-city communities is well established. Attempts to improve service delivery in such areas as housing, health care and job training usually concentrate on strengthening\u27 community education efforts and other strategies designed to motivate potential users of community services. Little emphasis has been placed on increasing the communication between different community service providers to achieve better coordination among organizations responsible for service delivery in inner-city communities. As a consequence, major service gaps exist including such problems as duplication of services, limited accessiblity [accessibility], and the absence of essential services. Such service gaps may go unnoticed unless community service providers and inner-city residents organize to address these problems. This paper reports on a study of community service providers who are working with residents to deal with the problem of service gaps in their inner-city community

Residents’ perceptions of tourism activity in a rural North-Eastern Portuguese community: a cluster analysis

The recognition of the role of tourism planners in seeking to contribute to local residents’ well-being by mitigating the potential costs of tourism development has been given more attention in the last decades. Several studies on the perception of positive or negative impacts, based on sustainability (namely the three pillars: economic, sociocultural and environmental) have been developed. However, the studies have been somewhat limited in terms of approaches, namely with respect to the contribution and participation of stakeholders. In this study, we attempted to use a bidirectional analysis of involvement and tourism knowledge to segment the residents and analyse their perception of the impacts. A total of 373 valid surveys were applied in a rural mountainous municipality (Boticas) during 2015 and 2016. In this municipality, tourism (activity) is an emergent activity. The results show that more informed and more involved residents have more positive perceptions of tourism than other groups, while less informed and less involved residents have more negative perceptions of it. The study contributes to increasing the knowledge about residents’ perceptions of tourism, adding the aspects of involvement, especially in rural areas. This type of proposal can be applied to any destination to help manage residents’ opinions and, consequently, their support of tourism development. Keywords: rural tourism; perceptions; segmentation; clusters; rural development; botica

Concorde noise-induced building vibrations: John F. Kennedy International Airport

Outdoor and indoor noise levels resulting from aircraft flyovers and certain nonaircraft events were recorded at eight homesites and a school along with the associated vibration levels in the walls, windows, and floors at these test sites. Limited subjective tests were conducted to examine the human detection and annoyance thresholds for building vibration and rattle caused by aircraft noise. Both vibration and rattle were detected subjectively in several houses for some operations of both the Concorde and subsonic aircraft. Seated subjects more readily detected floor vibrations than wall or window vibrations. Aircraft noise generally caused more window vibrations than common nonaircraft events such as walking and closing doors. Nonaircraft events and aircraft flyovers resulted in comparable wall vibration levels, while floor vibrations were generally greater for nonaircraft events than for aircraft flyovers. The relationship between structural vibration and aircraft noise is linear, with vibration levels being accurately predicted from overall sound pressure levels (OASPL) measured near the structure. Relatively high levels of structural vibration measured during Concorde operations are due more to higher OASPL levels than to unique Concorde-source characteristics

Transitions in Maltese society

Malta includes all the demographic characteristics of an ageing population, with future projections noting that the numbers and percentages of older persons are bound to increase in the coming four decades. It is also clear that changes in longevity, health and patterns of employment are transforming how older Maltese citizens are experiencing later life. It is therefore important that rather than viewing older people as merely high users of services, the government recognizes that older people have a range of characteristics, perspectives and interests, which should be identified, acknowledged and used to the benefit of society.peer-reviewe

[Review of] Harold A. McDougall, Black Baltimore: A New Theory of Community, and W. Edward Orser, Blockbusting in Baltimore: The Edmondson Village Story

This essay seeks to make a comparative review of two books: 1) Harold A. McDougall\u27s, Black Baltimore: A New Theory of Community; and 2) W. Edward Orser\u27s, Blockbusting in Baltimore: The Edmondson Village Story. The method of procedure used in this review essay will describe and evaluate the organizational structure of the books in a three-fold manner: 1) summary of the texts; 2) use of oral history in the texts; and 3) contribution of books to oral history= literature and conclusion, drawing upon common themes between the two books