193,599 research outputs found
Evaluation of cyclic resistance of providence silts using mini-cone penetration and standard penetration tests.
No full textSPR-229-2292Most areas of coastal Rhode Island are underlain by thick layers of non-plastic silt and it is important toknow if the existing standard-of-practice liquefaction potential evaluations (e.g. Robertson and Wride (1998) orSeed et al. (1985)) are accurate. The objective of this research was to critically evaluate the applicability of CPTand SPT based approaches to Providence silts. This was accomplished through a laboratory testing programinvolving the URI mini-cone calibration chamber and cyclic triaxial tests to develop a new relationship betweencyclic resistance ratio and tip resistance for Providence silt. The new relationship was compared to the standard-ofpracticeliquefaction potential evaluation methods from the literature. There was good agreement between theapproaches which shows that the existing field-based CPT methods are applicable to Rhode Island silts. This isconsistent with previous RIDOT funded research on the liquefaction potential evaluation of silts in Rhode Island(Bradshaw et al. 2007; 2007a; Baxter et al. 2008).An attempt was also made to evaluate SPT-based approaches in silt using the mini-cone and laboratorycyclic data. A qc/N60 correlation was evaluated from two loose silt sites in Rhode Island where SPT and CPTswere performed adjacent to each other. The agreement between blow counts and tip resistance was very poor, mostlikely due to the small number of tests and small range of in situ densities. Because of the poor agreement, it wasnot possible to directly evaluate the SPT-based liquefaction evaluation approaches in the study
A HOUSEHOLD PRODUCTION ANALYSIS OF FUELWOOD DEMAND IN RHODE ISLAND
No full textA model analyzing household substitution of fuelwood for other heating fuels is needed to clarify the relationship between energy prices and patterns of forest resource utilization. This paper employs the household production methodology to model fuelwood demand in Rhode Island. Data from a cross-sectional survey of 515 households are employed to test a discrete-choice model of household participation in wood-burning and a four-equation system modeling household production of heat and aesthetic benefits from fuelwood and stove capital. Control of selection bias via inclusion of an appropriate instrument allows analysis of aggregate demands. Some broad policy prescriptions applicable to the Northeast generally are presented.Resource /Energy Economics and Policy,
Moving Smart in Rhode Island
No full textURI 536142Real-time transportation system information is a critical element in the development of Intelligent Transportation Systems (ITS). The Rhode Island Department of Transportation (RIDOT) is in the process of developing a fully integrated intelligent transportation system. This system is composed of the following: a transportation management center (TMC), dynamic messaging signs (DMS); closed-circuit television (CCTV) cameras accompanied by video imaging process systems; and highway advisory radio (HAR). RIDOT plans to have the capability in the near future of monitoring and controlling several closed loop signalization systems, particularly alternate routes during an incident. To make this a reality, research is needed to ensure that the appropriate transportation data is captured and developed, as well as an appropriate information system is developed. This project's goal was to ensure the following: (1) that appropriate real-time operating conditions data are captured and developed automatically into a user-friendly format stipulating travel time or speed; and (2) that a real-time information system prototype is developed that supports monitoring, warehousing/mining, and concurrent access of data via the web; and (3) that an integrated system combines and extends the existing stand-alone systems. References, 8 figures, 11 tables; 33 p. (669 kb
Rhode Island College. Collection Development Policy
No full textCollection development policy of the James P. Adams Library at Rhode Island College - June 200
Studying the vehicle headway issue and its impact on the slow-down effect.
No full textURITC FY 06Project No. 0001852Tailgating is a dangerous driving behavior and is a major cause of rear-ended crashes. Finding effective means to help drivers maintain proper vehicle headways and to warn and discourage tailgating behavior is thus of utmost importance to traffic management authorities. This project presented a human-factors study, consisting of a vehicle headway analysis and a questionnaire survey, which was aimed to identify the causes of tailgating and to find effective means for tailgating treatments. In the vehicle headway analysis, vehicle headways on specific segments of major highways in Rhode Island were examined. With tailgating phenomenon confirmed from the analysis, the study next searched means to mitigate tailgating behavior. A questionnaire survey was conducted to find the leading causes of tailgating. Drivers\u2019 preferences on several tailgating treatments were surveyed. The results of the survey indicated that the majority considered \u201ctailgating\u201d a serious offense. Most of them, however, did not know what the proper vehicle headway was when driving on highways. Among the few different tailgating treatments, most preferred the one where equal-distanced horizontal bars were used as reference markings. They also indicated that properly designed dynamic message signs and fixed signs using both graphics and words could help them better understand the proposed tailgating treatment systems
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A letter from A.B. Rhode to Dr. Hector P. Garcia regarding the final stages of employment for plant operations.
No full textA letter from A.B. Rhode to Dr. Hector P. Garcia regarding the final stages of employment for plant operations
An Exploration of the Barriers in the Prevention and Control of High Blood Pressure Among West African Immigrants in Rhode Island
No full textThis is a report of a pilot study to explore the barriers to the prevention and control of
high blood pressure by West African immigrants in Rhode Island. The incidence of high
blood pressure is high in African Americans with many possible contributory factors
documented. However, little is known about possible barriers to the control of high
blood pressure among specific black ethnic populations such as West African immigrants
living in Rhode Island. A qualitative research design employing a semi-structured
interview was utilize to explore the issue. The barriers to high blood pressure
management reported by these West Africans immigrants reported included:
psychosocial stressors, inability to adopt lifestyle changes such as diet and exercise,
belief system, and a lack of complete adherence to medication regimen. The study also
highlighted the fact that some primary care providers for these patients are not following
the recommended interventions for the management of high blood pressure in people of
black ancestry. The findings of this pilot study support the need for provider use of
available treatment guidelines for population from black ancestry and the necessity for
adequate patient education in the areas of stress management strategies and lifestyle
modification as adjuncts to medication prescribed for high blood pressure management.</jats:p
A Dream of Love
No full text<p>Eleven landscape photos and an artist's statement comprise this work, through which the artist documents his search "for life within a single space ravaged by time and reclaimed by nature." (from Artist's Statement) The graduate exhibition of these photographs took place from April 27 through May 1, 2009 in the Bannister Gallery at Rhode Island College.</p></jats:p
Bridge inspection / washing program : bridge drainage program
No full textThe Rhode Island Department of Transportation, Operations Division is responsible for operation and maintenance of roads and bridges, and construction of highway and multi-modal projects to improve the transportation system of our state. One of the major functions is the bridge program, which includes: inspection, maintenance and repair. This program includes 1027 bridges. The state maintains 858 of these bridges. The state also inspects 173 bridges, which are maintained by others. This report considers two actions related to the bridge program. First, washing bridges to improve occupational safety of RIDOT Bridge Inspectors, allow thorough inspection of bridges and to reduce corrosion due to salt application. Then a second project devoted to drainage of water off bridges, through scuppers and downspouts, is presented. Analysis of the program suggests an average savings of $20,000 per bridge would be realized every eight years, if only they were washed and cleaned, on a regular basis. Appendix, 24 p
Rhode Island ITS/CVO business plan : final report
No full textThe Rhode Island Intelligent Transportation Systems/Commercial Vehicle Operations (ITS/CVO) Institutional Issues Study completed July 1996, substantiated the need for enhanced efficiency and safety in commercial transportation systems and regulation. The study examined the opportunities and potential barriers to using evolving information technologies to implement a seamless flow of data which could provide timely and accurate information across the spectrum of users
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