Pedestrian Impedance of Turning-Movement Saturation Flow Rates: Comparison of Simulation, Analytical, and Field Observations

1997 ◽  
Vol 1578 (1) ◽  
pp. 56-63 ◽  
Author(s):  
Nagui M. Rouphail ◽  
Brian S. Eads
Keyword(s):  
United States ◽  
Empirical Data ◽  
The United States ◽  
Signalized Intersections ◽  
Urban Traffic ◽  
Analytical Models ◽  
Flow Rates ◽  
Micro Simulation ◽  
Logarithmic Relationship ◽  
Saturation Flow

TRAF-NETSIM and its successor CORSIM are comprehensive micro-simulation environments that have been widely used to model the urban traffic environment in the United States and abroad. CORSIM is employed in this study to simulate and evaluate the effects of pedestrian flows on right-turn saturation flow rates at signalized intersections. The saturation flow rates returned by CORSIM were compared with field data collected throughout the United States and with three existing analytical models in the United States, Australia, and Canada. These comparisons indicated that CORSIM models pedestrian interference with the turning vehicles more severely than the three analytical methods, but with a smaller effect than the empirical data indicate. Further, the empirical data exhibit a logarithmic relationship between saturation flow rate and opposing pedestrian volume, compared with the linear relationship used in the simulation and analytical models. Implications for the design and analysis of signalized intersections are presented.

Secular Living as a Context for Moral Development

2020 ◽  
pp. 612-628
Author(s):  
Phil Zuckerman ◽  
Kyle Thompson
Keyword(s):  
United States ◽  
Moral Development ◽  
Empirical Data ◽  
The United States ◽  
Future Research ◽  
Philosophical Discussion

Despite widespread suspicion to the contrary, secular living can and does serve as an adequate, or even excellent, context for moral development. In this chapter, the authors present the contours of contemporary anti-atheist prejudice, with an emphasis on the United States. Next, they explore the empirical data showing that individual atheists and highly secularized societies, such as Sweden and Denmark, are often quite moral, which serves to counter and debunk anti-atheist prejudice. Then, the authors move to a philosophical discussion centering around secular morality itself, outlining general merits of atheistic morality specifically while simultaneously pointing out various problematic assumptions of theistic morality. Finally, the authors conclude and make recommendations for future research.

Strangers in the City: Transmigration from Eastern Europe and its Impact on Berlin and Hamburg 1880–1914

2016 ◽  
Vol 2 (2) ◽  
pp. 223-246
Author(s):  
Tobias Brinkmann
Keyword(s):  
United States ◽  
New York ◽  
Eastern Europe ◽  
The United States ◽  
Urban Traffic ◽  
European Cities ◽  
Massive Growth ◽  
Transit Migration ◽  
The Impact ◽  
The City

This article examines the impact of transit migration from the Russian and Austro-Hungarian Empires on Berlin and Hamburg between 1880 and 1914. Both cities experienced massive growth during the last three decades of the nineteenth century, and both served as major points of passage for Eastern Europeans travelling to (and returning from) the United States. The rising migration from Eastern Europe through Central and Western European cities after 1880 coincided with the need to find adequate solutions to accommodate a rapidly growing number of commuters. The article demonstrates that the isolation of transmigrants in Berlin, Hamburg (and New York) during the 1890s was only partly related to containing contagious disease and ‘undesirable’ migrants. Isolating transmigrants was also a pragmatic response to the increasing pressure on the urban traffic infrastructure.

scholarly journals COVID-19 In United States: Statistical Analysis and Inferences From the Empirical Data

2021 ◽  
Author(s):  
Nivedita Rethnakar
Keyword(s):  
United States ◽  
Statistical Analysis ◽  
Statistical Inference ◽  
Empirical Data ◽  
Respiratory Diseases ◽  
Temporal Dynamics ◽  
The United States ◽  
Mortality Statistics ◽  
Race Ethnicity ◽  
The Impact

Abstract This paper investigates the mortality statistics of the COVID-19 pandemic from the United States perspective. Using empirical data analysis and statistical inference tools, we bring out several exciting and important aspects of the pandemic, otherwise hidden. Specific patterns seen in demo- graphics such as race/ethnicity and age are discussed both qualitatively and quantitatively. We also study the role played by factors such as population density. Connections between COVID-19 and other respiratory diseases are also covered in detail. The temporal dynamics of the COVID-19 outbreak and the impact of vaccines in controlling the pandemic are also looked at with suf- ficient rigor. It is hoped that statistical inference such as the ones gathered in this paper would be helpful for better scientific understanding, policy prepa- ration and thus adequately preparing, should a similar situation arise in the future.

Background, Clarifications, and Overview

2020 ◽  
pp. 1-22
Author(s):  
Brad Vermurlen
Keyword(s):  
United States ◽  
Content Analysis ◽  
Empirical Data ◽  
Participant Observation ◽  
The United States ◽  
Turn Of The Millennium ◽  
Big Picture ◽  
Common Misconceptions

This introductory chapter opens with a brief summary of the big picture. It then establishes the existence of a New Calvinist movement in the United States since the turn of the millennium while acknowledging that the reality of the movement is itself a part of the puzzle. The chapter then provides an overview of the empirical data collected for this book, which includes participant observation at three (wildly popular) New Calvinist megachurches across the country, personal interviews with seventy-five Evangelical leaders (including New Calvinists and their religious challengers), and content analysis of printed and online materials, as well as how these data were analyzed. This chapter includes a section that responds to five common misconceptions about the nature and approach of this project. It ends with a summary of the narrative arc of the rest of the book, broken down by chapters.

Man a Kill a Man for Nutin’: Gang Transnationalism, Masculinities, and Violence in Belize City

2019 ◽  
pp. 1097184X1987278
Author(s):  
Adam Baird
Keyword(s):  
United States ◽  
United States Of America ◽  
Empirical Data ◽  
The United States ◽  
The Other ◽  
Homicide Rates ◽  
Local Dynamics ◽  
Marginalized Communities ◽  
The World ◽  
Cultural Connections

Belize has one of the highest homicide rates in the world; however, the gangs at the heart of this violence have rarely been studied. Using a masculinities lens and original empirical data, this article explores how Blood and Crip “gang transnationalism” from the United States of America flourished in Belize City. Gang transnationalism is understood as a “transnational masculinity” that makes cultural connections between local settings of urban exclusion. On one hand, social terrains in Belize City generated masculine vulnerabilities to the foreign gang as an identity package with the power to reconfigure positions of subordination; on the other, the establishment of male gang practices with a distinct hegemonic shape, galvanized violence and a patriarchy of the streets in already marginalized communities. This article adds a new body of work on gangs in Belize, and gang transnationalism, whilst contributing to theoretical discussions around the global to local dynamics of hegemonic masculinities discussed by Connell and Messerschmidt (2005) and Messerschmidt (2018).

Implementation of sustainable public procurement practices and policies: A sorting framework

2016 ◽  
Vol 16 (3) ◽  
pp. 312-346 ◽  
Author(s):  
Eric Prier ◽  
Edward Schwerin ◽  
Clifford P. McCue
Keyword(s):  
United States ◽  
Risk Taking ◽  
Empirical Data ◽  
Public Procurement ◽  
The United States ◽  
Government Agencies ◽  
Organizational Size ◽  
Current State ◽  
Systematic Pattern ◽  
The U.S

In general, there are many disincentives standing in the way of promoting change in public procurement practices by government agencies. Because engaging in sustainable purchasing requires some level of entrepreneurialism and risk-taking, a sorting framework is adopted to gauge whether some organizations are systematically more likely to pursue sustainable public purchasing (SPP) efforts than others. One-way analysis of variance and other methods are applied to a survey of public procurement practitioners across over 300 governments in the U.S. Results strongly suggest that agencies of various scope and reach tend to abstain from aggressively pursuing SPP efforts. However, when they do employ SPP, these efforts tend to be quite variable across and within levels of government and organizational size. In an effort to bridge theory with empirical data, a strong case can be made that the current state of SPP in the United States is the result of random and very cautious experimentation with little systematic pattern to SPP adoption.

scholarly journals Flow Rates and Compositions of incinerated Waste Streams in the United States

1992 ◽  
Vol 42 (4) ◽  
pp. 437-442 ◽  
Author(s):  
Nasrin Behmanesh ◽  
David T. Allen ◽  
John L. Warren
Keyword(s):  
United States ◽  
The United States ◽  
Waste Streams ◽  
Flow Rates
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