Length-Based Vehicle Classification Schemes and Length Bin Boundaries

2013 ◽  
Vol 2339 (1) ◽  
pp. 19-29 ◽  
Author(s):  
Herbert Weinblatt ◽  
Erik Minge ◽  
Scott Petersen
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
The United States ◽  
Traffic Monitoring ◽  
Vehicle Classification ◽  
Pavement Performance ◽  
Department Of Transportation ◽  
Classification Schemes ◽  
Weigh In Motion

Vehicle classification data are an important component of traffic-monitoring programs. Although most vehicle classification conducted in the United States is axle based, some applications could be supplemented or replaced by length-based data. The typically higher deployment cost and reliability issues associated with collecting axle-based data as compared with length-based data present a challenge. This paper reports on analyses of alternative length-based vehicle classification schemes and appropriate length bin boundaries. The primary analyses use data from a set of 13 Long-Term Pavement Performance weigh-in-motion sites, all in rural areas; additional analyses are conducted with data from 11 Michigan Department of Transportation weigh-in-motion sites located in rural and small urban areas and one site located in an urbanized area. For most states, the recommended length-based vehicle classification scheme is a four-bin scheme (motorcycles, short, medium, and long) with an optional very long bin recommended for use by states in which significant numbers of longer combination vehicles operate.

Canadian Involvement in the Brain Drain from Africa: Opportunities for Action

1979 ◽  
Vol 9 (4) ◽  
pp. 19-25
Author(s):  
Michael Sinclair
Keyword(s):  
Brain Drain ◽  
Rural Areas ◽  
Urban Areas ◽  
Third World ◽  
Developed Countries ◽  
Western Country ◽  
The United States ◽  
World Nation ◽  
The Brain

The phenomenon known as the “brain drain” refers to the permanent or long-term migration of educated or skilled individuals from one country to another, usually from a poor Third World nation to an industrialized Western country. However, it also describes the migration of such persons between developed countries, such as from Canada to the United States and within countries, notably from impoverished rural areas to urban areas.

The Rural-Urban Continuum of Polarization: Understanding the Geography of the 2018 Midterms

The Forum ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Kenneth M. Johnson ◽  
Dante J. Scala
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
Metropolitan Areas ◽  
Political Attitudes ◽  
The United States ◽  
Rural America ◽  
Rural Regions ◽  
Urban America ◽  
Urban And Rural Areas ◽  
The Continuum

Abstract This study of the 2018 congressional midterms demonstrates how voting patterns and political attitudes vary across a spectrum of urban and rural areas in the United States. Rural America is no more a monolith than is urban America. The rural-urban gradient is better represented by a continuum than a dichotomy. This is evident in the voting results in 2018, just as it was in 2016. We found that the political tipping point lies beyond major metropolitan areas, in the suburban counties of smaller metropolitan areas. Democrats enjoyed even greater success in densely populated urban areas in 2018 than in 2016. Residents of these urban areas display distinctive and consistent social and political attitudes across a range of scales. At the other end of the continuum in remote rural areas, Republican candidates continued to command voter support despite the challenging national political environment. Voters in these rural regions expressed social and political attitudes diametrically opposed to their counterparts in large urban cores.

Housing Finance Reform: Should There Be a Government Guarantee?

2011 ◽  
Vol 01 (04) ◽  
pp. 811-822 ◽  
Author(s):  
Richard K. Green
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
The United States ◽  
Economic Stress ◽  
Mortgage Market ◽  
Best Interest ◽  
Finance Reform ◽  
Fixed Rate ◽  
The Great Depression ◽  
The Republic

In 2007 and 2008, the mortgage market failed. It failed in a number of dimensions: Default rates rose to their highest levels since the great depression, and mortgage liquidity ground to a halt. This failure has produced recriminations: Blame has been laid at the feet of borrowers, brokers, lenders, investment banks, investors and government and quasi-government entities that guaranteed mortgages. These recent events have produced an important debate: Whether the U.S. mortgage market requires a federal guarantee in order to best serve consumers, investors and markets. My view is that such a guarantee is necessary. I will divide my argument into four areas: (1) I will argue that the United States has had a history of providing guarantees, either implicit or explicit, regardless of its professed position on the matter. This phenomenon goes back to the origins of the republic. It is in the best interest of the country to acknowledge the existence of such guarantees, and to price them appropriately before, rather than after, they become necessary. (2) I will argue that in times of economic stress, such as now, the absence of government guarantees would lead to an absence of mortgages. (3) I will argue that a purely "private" market would likely not provide a 30 year fixed rate pre-payable mortgage. I think that this is no longer a particularly controversial statement; what is more controversial is whether such a mortgage is necessary — I will argue that it is. (4) I will argue that in the absence of a federal guarantee, the price and quantity of mortgages will vary across geography. In particular, rural areas will have less access to mortgage credit that urban areas, central cities will have less access than suburbs. Condominiums already are treated less favorably than detached houses, and this difference is likely to get larger in the absence of a guarantee.

Use of Long-Term Pavement Performance Data to Develop Traffic Defaults in Support of Mechanistic-Empirical Pavement Design Procedures

2003 ◽  
Vol 1855 (1) ◽  
pp. 176-182 ◽  
Author(s):  
Weng On Tam ◽  
Harold Von Quintus
Keyword(s):  
Pavement Design ◽  
Vehicle Classification ◽  
Pavement Performance ◽  
Traffic Data ◽  
Design Procedures ◽  
Load Spectra ◽  
State Highway ◽  
Pavement Structures ◽  
Empirical Design

Traffic data are a key element for the design and analysis of pavement structures. Automatic vehicle-classification and weigh-in-motion (WIM) data are collected by most state highway agencies for various purposes that include pavement design. Equivalent single-axle loads have had widespread use for pavement design. However, procedures being developed under NCHRP require the use of axle-load spectra. The Long-Term Pavement Performance database contains a wealth of traffic data and was selected to develop traffic defaults in support of NCHRP 1-37A as well as other mechanistic-empirical design procedures. Automated vehicle-classification data were used to develop defaults that account for the distribution of truck volumes by class. Analyses also were conducted to determine direction and lane-distribution factors. WIM data were used to develop defaults to account for the axle-weight distributions and number of axles per vehicle for each truck type. The results of these analyses led to the establishment of traffic defaults for use in mechanistic-empirical design procedures.

scholarly journals Returning home to die: Circular labour migration and mortality in South Africa 1

2007 ◽  
Vol 35 (69_suppl) ◽  
pp. 35-44 ◽  
Author(s):  
Samuel J. Clark ◽  
Mark A. Collinson ◽  
Kathleen Kahn ◽  
Kyle Drullinger ◽  
Stephen M. Tollman
Keyword(s):  
South Africa ◽  
Rural Areas ◽  
Urban Areas ◽  
Terminal Illness ◽  
Event History Analysis ◽  
Historical Period ◽  
Short Term ◽  
History Analysis ◽  
Working Age

Aim: To examine the hypothesis that circular labour migrants who become seriously ill while living away from home return to their rural homes to convalesce and possibly to die. Methods: Drawing on longitudinal data collected by the Agincourt health and demographic surveillance system in rural northeastern South Africa between 1995 and 2004, discrete time event history analysis is used to estimate the likelihood of dying for residents, short-term returning migrants, and long-term returning migrants controlling for sex, age, and historical period. Results: The annual odds of dying for short-term returning migrants are generally 1.1 to 1.9 times (depending on period, sex, and age) higher than those of residents and long-term returning migrants, and these differences are generally highly statistically significant. Further supporting the hypothesis is the fact that the proportion of HIV/TB deaths among short-term returning migrants increases dramatically as time progresses, and short-term returning migrants account for an increasing proportion of all HIV/TB deaths. Conclusions: This evidence strongly suggests that increasing numbers of circular labour migrants of prime working age are becoming ill in the urban areas where they work and coming home to be cared for and eventually to die in the rural areas where their families live. This shifts the burden of caring for them in their terminal illness to their families and the rural healthcare system with significant consequences for the distribution and allocation of health care resources.

An Academic-Community Collaboration to Deliver Medication Therapy Management (MTM) Services to Patients Living in Rural Counties of a Southwestern State in the United States

2021 ◽  
pp. 089719002110002
Author(s):  
David Rhys Axon ◽  
Melissa Johnson ◽  
Brittany Abeln ◽  
Stephanie Forbes ◽  
Elizabeth J. Anderson ◽  
...  
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
Program Effectiveness ◽  
Small Town ◽  
The United States ◽  
Small Towns ◽  
Academic Community ◽  
Service Needs ◽  
Medication Therapy

Background: Patients living in rural communities often experience pronounced health disparities, have a higher prevalence of diabetes and hypertension, and poorer access to care compared to urban areas. To address these unmet healthcare service needs, an established, academic-based MTM provider created a novel, collaborative program to provide comprehensive, telephonic services to patients living in rural Arizona counties. Objective: This study assessed the program effectiveness and described differences in health process and outcome measures (e.g., clinical outcomes, gaps in care for prescribed medications, medication-related problems) between individuals residing in different rural-urban commuting area (RUCA) groups (urban, micropolitan, and small town) in rural Arizona counties. Methods: Subjects eligible for inclusion were 18 years or older with diabetes and/or hypertension, living in rural Arizona counties. Data were collected on: demographic characteristics, medical conditions, clinical values, gaps in care, medication-related problems (MRPs), and health promotion guidance. Subjects were analyzed using 3 intra-county RUCA levels (i.e., urban, micropolitan, and small town). Results: A total of 384 patients were included from: urban (36.7%), micropolitan (19.3%) and small town (44.0%) areas. Positive trends were observed for clinical values, gaps in care, and MRPs between initial and follow-up consultations. Urban dwellers had significantly lower average SBP values at follow-up than those from small towns (p < 0.05). A total of 192 MRPs were identified; 75.0% were resolved immediately or referred to providers and 16.7% were accepted by prescribers. Conclusion: This academic-community partnership highlights the benefits of innovative collaborative programs, such as this, for individuals living in underserved, rural areas.

A Regional Approach to Mobility Management

2019 ◽  
pp. 1-24
Author(s):  
Morgan D. Vogel ◽  
Robert Blair ◽  
Jerome Deichert
Keyword(s):  
Public Transportation ◽  
Rural Areas ◽  
Regional Growth ◽  
The United States ◽  
Sustainable Transportation ◽  
Infrastructure Development ◽  
Transit Services ◽  
Urban And Rural Areas

Across the United States there is increased pressure for communities, especially in states like Nebraska, to engage in sustainable transportation infrastructure development. Through a case study of an ongoing statewide transportation initiative in nonmetropolitan Nebraska, this chapter examines transportation sustainability and planning from a regional and collaborative perspective. The Nebraska effort can be adapted to other states with significant rural and dispersed population centers. Funded by the state and the federal governments, Nebraska's transportation initiative, using an innovative public-private partnership, is creating and enhancing regional transit services in small urban and rural areas, using public transportation as a means to promote long-term economic growth and sustainability. Smaller urban and micropolitan communities, often serving as regional growth centers, frequently are overlooked when it comes to research on transportation planning and policy.

scholarly journals Stroke Incidence and Case Fatality According to Rural or Urban Residence

Stroke ◽  
2019 ◽  
Vol 50 (10) ◽  
pp. 2661-2667 ◽  
Author(s):  
Olivier Grimaud ◽  
Yacine Lachkhem ◽  
Fei Gao ◽  
Cindy Padilla ◽  
Mélanie Bertin ◽  
...  
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
Healthcare Access ◽  
Case Fatality ◽  
The United States ◽  
Stroke Severity ◽  
Day Case ◽  
Stroke Incidence ◽  
Stroke Registry ◽  
Stroke Type

Background and Purpose— Recent findings suggest that in the United States, stroke incidence is higher in rural than in urban areas. Similar analyses in other high-income countries are scarce with conflicting results. In 2008, the Brest Stroke Registry was started in western France, an area that includes about 366 000 individuals living in various urban and rural settings. Methods— All new patients with stroke included in the Brest Stroke Registry from 2008 to 2013 were classified as residing in town centers, suburbs, isolated towns, or rural areas. Poisson regression was used to analyze stroke incidence and 30-day case fatality variations in the 4 different residence categories. Models with case fatality as outcome were adjusted for age, stroke type, and stroke severity. Results— In total, 3854 incident stroke cases (n=2039 women, 53%) were identified during the study period. Demographic and socio-economic characteristics and primary healthcare access indicators were significantly different among the 4 residence categories. Patterns of risk factors, stroke type, and severity were comparable among residence categories in both sexes. Age-standardized stroke rates varied from 2.90 per thousand (95% CI, 2.59–3.21) in suburbs to 3.35 (95% CI, 2.98–3.73) in rural areas for men, and from 2.14 (95% CI, 2.00–2.28) in town centers to 2.34 (95% CI, 2.12–2.57) in suburbs for women. Regression models suggested that among men, stroke incidence was significantly lower in suburbs than in town centers (incidence rate ratio =0.87; 95% CI, 0.77–0.99). Case fatality risk was comparable across urban categories but lower in rural patients (relative risk versus town centers: 0.76; 95% CI, 0.60–0.96). Conclusions— Stroke incidence was comparable, and the 30-day case fatality only slightly varied in the 4 residence categories despite widely different socio-demographic features covered by the Brest Stroke Registry.

scholarly journals Classification of Urban Area Using Multispectral Indices for Urban Planning

2020 ◽  
Vol 12 (15) ◽  
pp. 2503 ◽  
Author(s):  
Philip Lynch ◽  
Leonhard Blesius ◽  
Ellen Hines
Keyword(s):  
Land Cover ◽  
Urban Area ◽  
Urban Areas ◽  
Unsupervised Classification ◽  
Condition Index ◽  
The United States ◽  
United States Geological Survey ◽  
Classification Schemes ◽  
Florida Department

An accelerating trend of global urbanization accompanying population growth makes frequently updated land use and land cover (LULC) maps critical. LULC maps have been widely created through the classification of remotely sensed imagery. Maps of urban areas have been both dichotomous (urban or non-urban) and entailing of discrete urban types. This study incorporated multispectral built-up indices, designed to enhance satellite imagery, for introducing new urban classification schemes. The indices examined are the new built-up index (NBI), the built-up area extraction index (BAEI), and the normalized difference concrete condition index (NDCCI). Landsat Level-2 data covering the city of Miami, FL, USA was leveraged with geographic data from the Florida Geospatial Data Library and Florida Department of Environmental Protection to develop and validate new methods of supervised and unsupervised classification of urban area. NBI was used to extract discrete urban features through object-oriented image analysis. BAEI was found to possess properties for visualizing and tracking urban development as a low-high gradient. NDCCI was composited with NBI and BAEI as the basis for a robust urban intensity classification scheme superior to that of the United States Geological Survey National Land Cover Database 2016. BAEI, implemented as a shadow index, was incorporated in a novel infill geosimulation of high-rise construction. The findings suggest that the proposed classification schemes are advantageous to the process of creating more detailed cartography in response to the increasing global demand.

scholarly journals A Traditional Closed-Loop Sanitation System in a Chronic Emergency: A Qualitative Study from Afghanistan

Water ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 298 ◽  
Author(s):  
Sayed Mohammad Nazim Uddin ◽  
Jean Lapegue ◽  
Jutta Gutberlet ◽  
Jan Franklin Adamowski ◽  
Caetano C. Dorea ◽  
...  
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
Closed Loop ◽  
Focus Group Discussions ◽  
Group Discussions ◽  
The World ◽  
Smart Community ◽  
Urban And Rural Areas ◽  
Sanitation Systems

The use of closed-loop sanitation systems (CLSS), or reuse-oriented sanitation systems, has increased in recent years, and such systems have been successfully implemented in many parts of the world. However, no research has explored Traditional CLSS (T-CLSS) for a long-term humanitarian situation. This study explores the strengths, weaknesses, opportunities and threats (SWOT) of T-CLSS in peri-urban and rural contexts in three different provinces in Afghanistan (the first study of its kind in Afghanistan). Participatory research tools, such as transect walks, focus group discussions, smart community gatherings and interactive workshops, were applied to assess the SWOT associated with T-CLSS. The results indicate that T-CLSS has been practiced historically in both peri-urban and rural areas using local and traditional knowledge, skills and technologies. The socio-cultural acceptance of the system in both rural and peri-urban areas is an important strength of this established system. However, due to chronic development challenges in the study regions, T-CLSS may possibly lead to exposure to microbial contaminants. It is recommended that the feasibility of an improved CLSS be assessed and implemented in light of the issues that are inherent in the use of T-CLSS in Afghanistan.

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