Long-Lasting Gravel Roads: Case Study from the United States

2003 ◽  
Vol 1819 (1) ◽  
pp. 161-165 ◽  
Author(s):  
Ali A. Selim ◽  
Kenneth O. Skorseth ◽  
Ratnasamy Muniandy
Keyword(s):  
United States ◽  
Rural Areas ◽  
Road Construction ◽  
The United States ◽  
Fine Aggregate ◽  
The Road ◽  
Dynamic Cone Penetrometer ◽  
Subgrade Soil ◽  
Long Time ◽  
Aggregate Base

Gravel surfacing is commonly used on low-volume roads in rural areas of the United States to form farm-to-market networks that contain more than a million miles of unpaved roads. Some of these roads carry appreciable amounts of trucks and farm machinery. Some of these roads, if properly designed and constructed, can last a long time. One such road is in Hand County, South Dakota. This road was constructed in 1963 and has never been rehabilitated or reconstructed since its construction, and it has shown excellent performance for more than 37 years. This road normally carries less than 200 vehicles per day, but significant numbers of heavy trucks use the road. This exceptional performance led to an investigation of the reasons why that road lasted as long as it did without major maintenance or rehabilitation. Although this type of road construction is common in other nations, under different names, the practice of constructing this type of road in the United States was done without documented specifications. The main objectives of the study were to determine all factors that contributed to the longevity and the remarkable performance of this road through field and laboratory investigations. Field investigations with a dynamic cone penetrometer (DCP) revealed that both the quality and the quantity of aggregate base were more than adequate. Although the subgrade soil was classified as A6 according to AASHTO soil specifications, it provided good support according to DCP data. Tests of the flatness and elongation of the coarse aggregate and the angularity of the fine aggregate also revealed satisfactory results. Gradation tests also revealed compliance with specifications.

scholarly journals Factors Influencing Land Values in the Presence of Suburban Sprawl

1974 ◽  
Vol 3 (1) ◽  
pp. 112-124 ◽  
Author(s):  
Bruce E. Lindsay ◽  
Cleve E. Willis
Keyword(s):  
United States ◽  
Rural Areas ◽  
The United States ◽  
Land Values ◽  
Suburban Sprawl ◽  
Factors Influencing ◽  
Definition Of

The spread of suburbs into previously rural areas has become commonplace in the United States. A rather striking aspect of this phenomenon has been the discontinuity which results. This aspect is often manifest in a haphazard mixture of unused and densely settled areas which has been described as “sprawl”. A more useful definition of suburban sprawl, its causes, and its consequences, is provided below in order to introduce the econometric objectives of this paper.

scholarly journals Italianness in the United States between migrants’ informal gardening practices and agricultural diplomacy (1880–1912)

Modern Italy ◽  
2021 ◽  
pp. 1-17
Author(s):  
Gilberto Mazzoli
Keyword(s):  
United States ◽  
Environmental History ◽  
Rural Areas ◽  
Food Production ◽  
East Coast ◽  
The United States ◽  
Southern United States ◽  
Mass Migration ◽  
Us Cities ◽  
Political Radicalism

During the Age of Mass Migration more than four million Italians reached the United States. The experience of Italians in US cities has been widely explored: however, the study of how migrants adjusted in relation to nature and food production is a relatively recent concern. Due to a mixture of racism and fear of political radicalism, Italians were deemed to be undesirable immigrants in East Coast cities and American authorities had long perceived Italian immigrants as unclean, unhealthy and carriers of diseases. As a flipside to this narrative, Italians were also believed to possess a ‘natural’ talent for agriculture, which encouraged Italian diplomats and politicians to propose the establishment of agricultural colonies in the southern United States. In rural areas Italians could profit from their agricultural skills and finally turn into ‘desirable immigrants’. The aim of this paper is to explore this ‘emigrant colonialism’ through the lens of environmental history, comparing the Italian and US diplomatic and public discourses on the potential and limits of Italians’ agricultural skills.

scholarly journals Core Elements Affecting Sharing: Evidence from the United States

2021 ◽  
Vol 13 (7) ◽  
pp. 3943
Author(s):  
Aurelija Burinskienė ◽  
Edita Leonavičienė ◽  
Virginija Grybaitė ◽  
Olga Lingaitienė ◽  
Juozas Merkevičius
Keyword(s):  
United States ◽  
The United States ◽  
Collaborative Consumption ◽  
Factors Affecting ◽  
Use Of Resources ◽  
Personal Consumption ◽  
Depth Analysis ◽  
Core Elements ◽  
Long Time ◽  
Number Of Visits

The new phenomenon called sharing or collaborative consumption emerged a decade ago and is continuously growing. It creates new possibilities for society, and especially for business, is beneficial for the environment, makes more efficient use of resources, and presents a new competitive business model. The scientific literature lacks a more in-depth analysis of the factors influencing sharing activity growth; therefore, the paper’s authors attempt to fill this gap. The authors aim to identify the factors affecting the use of sharing platforms. To reach the goal, the authors developed a regression model and constructed a list of 71 variables. The study used monthly United States data from January 2017 to June 2020 from the publicly available Federal Reserve Economic Data (FRED)and Google trends databases. The comparison to other indexes proves that the proposed index, representing the number of visits to sharing platforms (SEP), is a unique one. The first index allowed us to revise the sharing activity monthly. The authors identified that variables such as wage level, social network users, import level, and personal consumption are critical in affecting the number of visits to sharing platforms. The presented framework could be helpful for practitioners and policymakers analysing the stimulation of sharing or collaborative consumption. It includes indicators representing different areas, such as society, technology, and country, and allows for monthly investigations. Such activity was evident for a long time when online platforms contributed to its wider accessibility. The results help to forecast the number of visits monthly. Sharing is still an emerging area for research; thus, the authors tried to explore the phenomenon of sharing to expand the conceptual level of knowledge.

scholarly journals PM2.5 polluters disproportionately and systemically affect people of color in the United States

2021 ◽  
Vol 7 (18) ◽  
pp. eabf4491
Author(s):  
Christopher W. Tessum ◽  
David A. Paolella ◽  
Sarah E. Chambliss ◽  
Joshua S. Apte ◽  
Jason D. Hill ◽  
...  
Keyword(s):  
United States ◽  
Rural Areas ◽  
The United States ◽  
People Of Color ◽  
Emission Sources ◽  
Particulate Air Pollution ◽  
Fine Particulate ◽  
Exposure Levels ◽  
Urban And Rural Areas ◽  
Racial Ethnic

Racial-ethnic minorities in the United States are exposed to disproportionately high levels of ambient fine particulate air pollution (PM2.5), the largest environmental cause of human mortality. However, it is unknown which emission sources drive this disparity and whether differences exist by emission sector, geography, or demographics. Quantifying the PM2.5 exposure caused by each emitter type, we show that nearly all major emission categories—consistently across states, urban and rural areas, income levels, and exposure levels—contribute to the systemic PM2.5 exposure disparity experienced by people of color. We identify the most inequitable emission source types by state and city, thereby highlighting potential opportunities for addressing this persistent environmental inequity.

scholarly journals Strategies for Disseminating and Implementing the COVID-19 Vaccines in Rural Areas

2021 ◽  
Author(s):  
Beth Prusaczyk
Keyword(s):  
United States ◽  
Health Disparities ◽  
Urban Health ◽  
Rural Areas ◽  
The United States ◽  
Urban Residents ◽  
Rural Residents ◽  
Vaccination Programs ◽  
Vaccine Information ◽  
Roll Out

Abstract The United States has well-documented rural-urban health disparities and it is imperative that these are not exacerbated by an inefficient roll-out of the COVID-19 vaccines to rural areas. In addition to the pre-existing barriers to delivering and receiving healthcare in rural areas, such as high patient:provider ratios and long geographic distances between patients and providers, rural residents are significantly more likely to say they have no intention of receiving a COVID-19 vaccine, compared to urban residents. To overcome these barriers and ensure rural residents receive the vaccine, officials and communities should look to previous research on how to communicate vaccine information and implement successful vaccination programs in rural areas for guidance and concrete strategies to use in their local efforts.

C. Sharon Advisor Dov Weisglass, Remarks on Relations with the United States, Disengagement, the Road Map, and the Possibilities of a Palestinian State, Tel Aviv, October 2004 (excerpts)

2005 ◽  
Vol 34 (2) ◽  
pp. 203-207
Keyword(s):  
United States ◽  
National Security ◽  
Full Text ◽  
Prime Minister ◽  
The United States ◽  
Sharp Contrast ◽  
Tel Aviv ◽  
The Road ◽  
Road Map ◽  
The Relationship

Ha'Aretz's lengthy interview with Dov Weisglass, Prime Minister Ariel Sharon's ““point man”” with Washington and probably his closest advisor, was conducted by Ari Shavit and published first in excerpts and two days later in its entirety. In addition to bringing into sharp contrast the contradiction between Israel's declaratory policies and assurances and its actual policies and intentions——and in so doing eliciting a swift ““clarification”” from the Prime Minister's Office——the interview also conveys a sense of the intimacy and easy camaraderie that characterizes U.S.-Israeli interactions. The full text is available at www.haaretz.com. Tell me about the dynamics of the relationship between you [and U.S. national security advisor Condoleezza Rice], and whether it's an unusual relationship.

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