A Quiet Area Accessibility Metric for the Southampton Urban Agglomeration

This study proposes a new metric that characterises accessibility to “quiet areas”, as defined by the Environmental Noise Directive (END), in urban agglomerations by using Geographical Information System software in conjunction with END noise mapping results. The metric methodology is shown and it is used to determine lack of access to quiet spaces in social disadvantaged areas in the city of Southampton, United Kingdom. The results can help urban planners to identify districts that need better provision of tranquil spaces and to enforce measures to protect existing quiet areas. The study concludes with a description of the implementation of the quiet area accessibility metric in open source internet urban mapping tools

Jet noise source distribution for coplanar nozzles: experiments and predictions

In this paper we study the mechanism of jet noise production in coaxial flows. We shall present various experimental results for isothermal and heated coplanar jet flows of four area ratios (0.81, 2, 3, and 4), operating at different velocity ratios, ranging from 0.60 up to 1.26. A polar array technique has been used to find the axial distribution of the jet sources. In order to better under- stand the behavior of the experimental results, some computational fluid dynamics simulations are performed, and a basic theoretical model based on Lighthill’s Acoustic Analogy is also developed. It is shown that some significant changes occur to the flow structure and therefore the jet noise source distribution at velocity ratio of about 0.8, and also for the nozzles with area ratio of 2 to 4. It has also been shown that the most important high and low frequency sources for low velocity ratio flows are aggregated in a region about seven to ten secondary diameters downstream, while at higher velocity ratios sources are continuously spread from about one up to ten secondary diameters downstream. The effect of the primary flow temperature is also examined

Social Deprivation and Accessibility to Quiet Areas in Southampton

It has been suggested that access to so-called “Quiet Areas” could be beneficial to subjects with health problems. A number of studies have also indicated a correlation between social deprivation and exposure to noisy environments. The European Noise Directive (END) provides a framework for identifying Quiet Areas in urban agglomerations. This study proposes a new indicator that characterises accessibility to quiet spaces, using Geographical Information System software in conjunction with END noise mapping results. This metric is applied to determine correlations between social deprivation and access to quiet areas in the city of Southampton

Proyecto orla 2.0. La construcción de la identidad a través del retrato fotográfico

Memoria ID-0269. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2014-2015