Optimal Location of U-Turn Median Openings on Roadways

Author(s):  
Huaguo Zhou ◽  
Peter Hsu ◽  
Jian John Lu ◽  
John E. Wright

Many state and local transportation agencies have considered using U-turns as alternatives to direct left turns from driveways or side streets. Median designs are used that prohibit left turns onto the facility and mid-block U-turn median openings to accommodate diverted left turns from side streets or driveways. The location of these U-turn median openings has a great impact on the operations of U-turns. Traffic operations (weaving and delay) for right turns followed by U-turn movements on urban or suburban multilane roadways were analyzed. A working model was developed to guide the location of U-turn median openings by minimizing the average delay for U-turn movements. A case study demonstrates the operational and safety benefits of optimal U-turn median opening location.

2019 ◽  
Vol 33 (3) ◽  
pp. 189-202 ◽  
Author(s):  
Ian O’Boyle ◽  
David Shilbury ◽  
Lesley Ferkins

The aim of this study is to explore leadership within nonprofit sport governance. As an outcome, the authors present a preliminary working model of leadership in nonprofit sport governance based on existing literature and our new empirical evidence. Leadership in nonprofit sport governance has received limited attention to date in scholarly discourse. The authors adopt a case study approach involving three organizations and 16 participant interviews from board members and Chief Executive Officers within the golf network in Australia to uncover key leadership issues in this domain. Interviews were analyzed using an interpretive process, and a thematic structure relating to leadership in the nonprofit sport governance context was developed. Leadership ambiguity, distribution of leadership, leadership skills and development, and leadership and volunteerism emerged as the key themes in the research. These themes, combined with existing literature, are integrated into a preliminary working model of leadership in nonprofit sport governance that helps to shape the issues and challenges embedded within this emerging area of inquiry. The authors offer a number of suggestions for future research to refine, test, critique, and elaborate on our proposed working model.


2021 ◽  
Vol 46 (1) ◽  
pp. 252-267
Author(s):  
Rashmi Dyal-Chand

Preemption is one of the most important legal doctrines for today’s progressives to understand because of its power to constrain progressive policymaking and social movement lawyering at the state and local level. By examining the detailed history of a decades-long campaign by the labor and environmental movements to improve working conditions in an industry at the heart of the global supply chain, Scott L. Cummings’s Blue and Green: The Drive for Justice at America’s Port (2018) provides a case study about the doctrine and impacts of preemption. The study also inspires lawyers and activists alike to reexamine core questions of factual relevance, representation and voice, and precedent.


Author(s):  
Mauro Felipe Berumen Calderón ◽  
Damayanti Estolano Cristerna ◽  
Angelica Selene Sterling Zozoaga ◽  
Andreé Ricardo Berumen Calderón

Author(s):  
Lino J. Alvarez-Vázquez ◽  
Aurea Martínez ◽  
Miguel E. Vázquez-Méndez ◽  
A. W. Pollak ◽  
J. Jeffrey Peirce
Keyword(s):  

1973 ◽  
Vol 1 (4) ◽  
pp. 372-387 ◽  
Author(s):  
A. T. Eapen ◽  
Ana N. Eapen

Regardless of the alternative assumptions used to allocate taxes and benefits from expenditures of Connecticut state and local governments in 1967, this study shows that the incidence of taxes is regressive while that of expenditures is progressive. The regressivity of the tax structure is overwhelmingly due to the regressivity of the property tax. Progressivity of expenditures stems chiefly from transfer payments, housing, and hospitals which benefit primarily low-income families. On the basis of reasonable assumptions, it is shown that the state and local fiscs bring about, on the average a net redistribution of a mere two percent of income from families with annual incomes of $12,000 and above to those below that level.


2021 ◽  
Author(s):  
Olga M Dlugosz

The author proposes a working model solution for a digital collection catalogue database, in FileMaker Pro. The catalogue cross-references photographs, publications, exhibitions, sales, correspondence, and other activity incidental to a photographer's career and body of work. The studio and archive of Sally Mann, an influential and highly regarded American photographer, is used as an illutrative example.


2021 ◽  
Author(s):  
Olga M Dlugosz

The author proposes a working model solution for a digital collection catalogue database, in FileMaker Pro. The catalogue cross-references photographs, publications, exhibitions, sales, correspondence, and other activity incidental to a photographer's career and body of work. The studio and archive of Sally Mann, an influential and highly regarded American photographer, is used as an illutrative example.


Author(s):  
Velamala Ranga Rao

The objective of this chapter is 1) to understand multi-channel architecture, integration, and management; 2) to develop a framework for citizen relationship and grievance management system for a single view; 3) as a case study, to propose framework applied to find what types of channels are providing to the citizens get access to the public services at National, State, and Local level in India; 4) as a case study, to find out challenges and issues with implementation of multi-channel services delivery. The key findings of the case study are: 1) There is no declining in providing traditional channels after introducing modern channels. 2) The departments are offering mixed channels. 3) Usage of mobile-based applications, social media, and wi-fi are in pilot basis or at initial stage. 4) Multi-channel integration and management is not yet initiated. 5) Electricity and network coverage are main issues in implementation of modern channels. However, such initiatives have some issues and challenges to the developing countries like India.


Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2306 ◽  
Author(s):  
Christos Vlachokostas ◽  
Charisios Achillas ◽  
Ioannis Agnantiaris ◽  
Alexandra V. Michailidou ◽  
Christos Pallas ◽  
...  

Lately, the model of circular economy has gained worldwide interest. Within its concept, waste is viewed as a beneficial resource that needs to be re-introduced in the supply chains, which also requires the use of raw materials, energy, and water to be minimized. Undeniably, a strong link exists between the bioeconomy, circular economy, bioproducts, and bioenergy. In this light, in order to promote a circular economy, a range of alternative options and technologies for biowaste exploitation are currently available. In this paper, we propose a generic methodological scheme for the development of small, medium, or large-scale units of alternative biowaste treatment, with an emphasis on the production of bioenergy and other bioproducts. With the use of multi-criteria decision analysis, the model simultaneously considers environmental, economic, and social criteria to support robust decision-making. In order to validate the methodology, the latter was demonstrated in a real-world case study for the development of a facility in the region of Serres, Greece. Based on the proposed methodological scheme, the optimal location of the facility was selected, based on its excellent assessment in criteria related to environmental performance, financial considerations, and local acceptance. Moreover, anaerobic digestion of agricultural residues, together with farming and livestock wastes, was recommended in order to produce bioenergy and bioproducts.


2012 ◽  
Vol 61 (2) ◽  
Author(s):  
Thomas Döring ◽  
Lorenz Blume

AbstractIn Germany there exists a political consensus that the economic and fiscal burden of the German reunification should be shared by all three jurisdictional levels of the federal system. According to existing law the burden sharing between the state and local authorities has to be confined to the excess burden which follows from the financing of the German Unity Fund as well as the integration of the eastern German states into the fiscal equalisation system. Thereby, state and local authorities are in conflict with each other regarding an appropriate economic estimation of the excess burden to be caused by the fiscal equalization system. Against this background the paper explains and illustrates the economic concept of burden in terms of opportunity costs. Taking North Rhine-Westphalia as a case study the quantity of the excess burden is empirically estimated for the time period 1995 - 2009 by applying a multivariate data analysis.


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