A preliminary study of the characteristics of noisy vehicles under cruising conditions – results of roadside measurements

YesIn the past it has been found that the maximum pass-by noise for the most noisy of vehicles can be 6-8 dB(A) above the average for the sample. It is therefore useful to consider the types of vehicle that make excessive noise and their condition and to reach some conclusions on how best to reduce the problem. Measurements of maximum noise, pass-by speed together with video footage were taken on a busy dual carriageway road (A34) in the UK carrying a high percentage of heavy vehicles. The intention was to collect sufficient information on light, medium heavy and heavy vehicles to enable typical characteristics of noisy vehicles to be identified. Peak noise levels produced by vehicles under normal operating conditions of steady speed were recorded and not of vehicle being driven in an aggressive manner e.g. under harsh acceleration. This paper reports on the characteristics of excessively noisy vehicles that were identified under these cruising conditions in free flow traffic conditions.The work described in this report was carried out in the Noise and Vibration Team of TRL Limited under funding from the Transport Research Foundation

How to make your house and garden more tranquil - tips from an acoustics expert

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Only Words: An Examination of Catharine Mackinnon\u27s Challenge to the Supreme Court\u27s First Amendment Conceptual Framework

The rapidly increasing cry for forms of speech rationing is part of the culture war that currently splits the social and political life of the United States. The individual battles of this war can be defined along several lines. There is the struggle of minority groups against dominant whites, and also a bitter struggle between minority groups. 1 We also face a neo-Marxist economic battle between the commons and wealthy corporate America. There is a growing conflagration between traditional religious groups and the supporters of a secular view of morality and society. Finally, there is the complex struggle between men and women. These battles are bitter and brutal, and participants fully recognize the power of speech and press in determining the war\u27s eventual victors. The stakes are higher than ever, and the intolerance for unacceptable speech is growing

Ohio

In recent years, as a result of Ohio’s Utica shale boom, Ohio courts have confronted the issue of how to apply the Ohio Marketable Title Act. As with many statutes, there are generally two questions to answer: (1) does the particular statute apply to the particular facts of the case? and (2) if the statute applies in the first instance, how does a court apply the statute to the particular facts of the case

Gonzales v. Raich: How to Fix a Mess of Economic Proportions

The Note examines the history, evolution, elements, and application of the Commerce Clause doctrine. Part II, Sections A through C, concentrate on the history of the Supreme Court’s interpretation of the Commerce Clause, focusing extensively on Wickard v. Filburn, which the majority in Raich held controlling, and United States v. Lopez and United States v. Morrison, which the dissent would have held as controlling. Part II, Sections D and E, provide an overview of the Controlled Substances Act, whose constitutionality was challenged as applied in Gonzales v. Raich, and the Compassionate Use Act of California, which led to the conflict in Raich. Part III provides a statement of the facts, the procedural history, and the United States Supreme Court decision in Gonzales v. Raich. Part IV, Sections A and B, analyze the Raich decision, arguing that based on fundamental legal arguments the Lopez/Morrison standard applied in Raich is inadequate. In Part IV, Sections C through E, the meanings of the words “commerce,” “among the several States,” and “to regulate” are analyzed based on the text and history of the Constitution. Part IV, Section F, proposes a Neo-Gibbons standard, and Section G applies this standard to Commerce Clause jurisprudence

Towards quantifying the quality of tranquil areas with reference to the National Planning Policy Framework.

yesThe UK has recently recognized the importance of tranquil spaces in the National Planning Policy Framework, NPPF. This paper reports on applying the tranquillity rating prediction tool, TRAPT for predicting the perceived tranquillity of a place and using this tool to classify the levels of tranquillity in existing areas. The tool combines soundscape and landscape measures to produce a tranquillity rating on a 0-10 rating scales. For these purposes noise maps, spot noise level measurements, photographic surveys were used to predict tranquillity levels in 8 parks and open spaces in or near the city of Bradford in West Yorkshire in the UK. In addition interviews were conducted with visitors to validate these predictions. It was found that there was a reasonably close relationship between predicted and average assessments given by park visitors which confirmed the usefulness of the tranquillity rating prediction tool for planning and conservation purposes

Factors affecting tranquillity in the countryside.

yesPrevious work on elucidating the tranquillity of various environments has largely focussed on prediction and validation in urban environments. The setting for the latest phase of research was an English country park and surrounding moors on the urban fringe located 8 miles west of Bradford. Within the area selected there were a number of environments and man-made features and sounds that were thought to significantly affect tranquillity and which were not covered in earlier studies. The experiment extended over a number of months and utilised a jury technique for evaluation involving leading small groups of walkers to different locations in quasi-random order. At each location participants were asked to complete a short questionnaire and measurements of the physical soundscape and landscape images were used to interpret the results and give insights into the importance of the various factors affecting tranquillity. Such data will be useful for effective environmental management and conservation in the countryside

A measurement of the cosmic ray elements C to Fe in the two energy intervals 0.5-2.0 GeV/n and 20-60 GeV/n

The study of the cosmic ray abundances beyond 20 GeV/n provides additional information on the propagation and containment of the cosmic rays in the galaxy. Since the average amount of interstellar material traversed by cosmic rays decreases as its energy increases, the source composition undergoes less distortion in this higher energy region. However, data over a wide energy range is necessary to study propagation parameters. Some measurements of some of the primary cosmic ray abundance ratios at both low (near 2 GeV/n) and high (above 20 GeV/n) energy are given and compared to the predictions of the leaky box mode. In particular, the integrated values (above 23.7 GeV/n) for the more abundant cosmic ray elements in the interval C through Fe and the differential flux for carbon, oxygen, and the Ne, Mg, Si group are presented. Limited statistics prevented the inclusion of the odd Z elements

Ohio

Ohio courts continue applying the Ohio Marketable Title Act to severed oil and gas rights.1 As with many statutes, there are generally two questions that must be answered: (1) does the particular statute apply to the particular facts of the case and (2) if the statute applies in the first instance, how does a court apply the statute to the particular facts of the case? Both questions about Ohio’s Marketable Title Act and severed mineral interests were further examined and explored in 2020

Investigation of noise and disturbance from vehicles crossing cattle grids and examination of options for mitigation

YesCattle grids are used on roads and tracks to prevent grazing animals from leaving an open space without fencing onto a more controlled area where access to the road from surrounded land is more limited. They are widely used in the UK at the entrances to common and moorland areas where animals are free to roam, but also on private drive entrances. Typically, they consist of a series of metal bars across the road that are spaced so that an animal’s legs would fall through the gaps if it attempted to cross. Below the grid is a shallow pit that is intended to further deter livestock from using that particular crossing point. The sound produced as vehicles cross these devices is a characteristic low frequency “brrrr” where the dominant frequencies relates to the bar passage frequency under the tyres. The sound can be disturbing to riders and their horses and walkers and residents living close by as evidenced by press reports and the need to consider noise aspects in planning for new installations. For this reason and due to the lack of available information on the size and nature of the problem measurements and recordings have been made at a number of sites in Yorkshire in the UK. In addition, questionnaire surveys of residents living close by and façade measurements have also been used to gauge impact. Results show that there is a wide variation in the maximum noise level produced by cattle grids of apparently similar design. This can be related to impact noise produced by the movement of all or part of the grid as the frame comes under impulsive loading as the vehicle crosses. It was further established that some residents living close to the cattle grids were disturbed by the noise, and in some cases vibration, and wanted them removed or suitably modified. Means of reducing the problem are proposed