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The absence of a clear structural legibility within the New York City subway system tends to make its users dependent on other informational aids about its structural design and operations-such as signs, announcements, and especially the official New York City subway map and guide. The effectiveness of the New York City subway guide was tested by assigning 20 Ss a travel route which consisted of four trip-segments of varying difficulty. Of the total 80 trip segments, only 37 were traveled via acceptable (as determined by authors) solutions, with subjects having more difficulty planning acceptable solutions for more complex trip-segments. Interviews revealed that subjects felt insecure traveling the subway because the graphics in the system did not serve to reinforce their train selections. The findings suggest that the New York City subway system needs an improved map to guide its passengers as well as better systemwide graphics.

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While noise may not yet be in the forefront of the environmental movement, it is being recognized worldwide as a major environmental pollutant. In New York City, noise is the number one quality of life complaint, far outweighing other quality of life complaints, and throughout the United States it has been noted as a major reason for people moving from their homes. Although there is a need for additional research to confirm the health/noise link, the World Health Organization has already recognized noise pollution as a serious health issue. There is certainly sufficient research to warrant warnings that noise is injurious to mental and physical health. Yet, despite this growing body of literature attesting to the relationship between noise and health impacts, government bodies have not yet invested the dollars needed to abate noise nor to educate people to the dangers of noise. Organizations such as the League for the Hard of Hearing, the Noise Pollution Clearinghouse, and the United Kingdom Noise Network have assumed the tasks of educating the public to the harmful effects of noise, of advocating anti-noise measures, and of urging public officials to move more assertively in lessening the din of our ever-increasing noisy society.

To provide quantitative evidence of the impact on people of a neighboring metropolitan airport, La Guardia Airport (LGA) in New York City, (1) airborne particulate matter (PM) was measured to determine whether concentration differences could be detected between homes that are upwind and downwind of the airport; (2) 24-hr noise measurements were made in 12 homes near the airport; and (3) the impact of noise was assessed by a Community Wellness and Health Promotion Survey. Particulate matter concentrations were higher during active airport operating hours than during nonoperating hours, and the percent increase varied inversely with distance from the airport. Hourly differences between paired upwind and downwind sites were not remarkable. Residents living near the airport were exposed to noise levels as much as four times greater than those experienced by residents in a quiet, comparison home. Impulse noise events were detected from both aircraft and vehicular traffic. More than 55% of the people living within the flight path were bothered by aircraft noise, and 63% by highway noise; these were significantly higher percentages than for residents in the nonflight area. The change in PM concentrations with distance during operating compared with nonoperating hours; traffic-related impulse noise events; and the elevated annoyance with highway noise, as well as aircraft noise among residents in the flight path area, show airport-related motor vehicle traffic to be a major contributor to the negative impact of airports on people in the surrounding communities.

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