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  • Farm to ISU: Helping Iowa State University Dining Staff Understand and Grow the Local Food Purchasing Program
    ISU Helping Iowa State University Dining Staff Understand and Grow the Local Food Purchasing Program Researcher s Principal investigators Shashi Nambisan Project status Completed Start date 09 01 08 End date 06 30 09 Publications Report Farm to ISU Helping Iowa State University Dining Staff Understand and Grow the Local Food Purchasing Program NA pdf June 2009 Sponsor s partner s Sponsor s Sustainable Agriculture Research and Education SARE program U S Department of Agriculture National Institute of Food and Agriculture USDA NIFA US Department of Agriculture About the research Abstract Researchers and institutions are aware of an increase in consumer demand for local foods and perceptions of dining directors however few are considering the views of the dining staff who prepare locally sourced food This study explores the perceptions of dining services staff at Iowa State University ISU toward the two year old local food purchasing program Farm to ISU Over the course of six months staff were surveyed participated in a workshop on local food and then took the survey for a second time The goal of this project was to increase the knowledge and resource base of ISU Dining staff in order to foster an institutional culture

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1682150578 (2015-11-09)
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  • Investigation into Freezing-Thawing Durability of Low Permeability Concrete with and without Air Entraining Agent
    Permeability Concrete with and without Air Entraining Agent Beam samples after freeze thaw test Researcher s Principal investigators Kejin Wang 515 294 2152 kejinw iastate edu Iowa State University Co principal investigators Bob Steffes 515 294 7323 steffesr iastate edu Iowa State University Student researcher Gilson Lomboy Project status Completed Start date 08 01 07 End date 06 30 09 Publications Report Investigation into Freezing Thawing Durability of Low Permeability Concrete with and without Air Entraining Agent 2 2 mb pdf June 2009 Tech transfer summary Freeze Thaw Durability of Low Permeability Concrete 239 kb pdf Jun 2009 Sponsor s partner s Sponsor s Iowa Concrete Paving Association Iowa Department of Transportation About the research Abstract The aim of the present study is to investigate the effect of low permeability concrete made with reduced watert to binder ratios w b and or supplementary cementitious materials SCMs on the need for air entrainment to achieve freezing thawing F T durability In the present study concrete mixes were made with different types of cement Types I and IP with or without fly ash replacement 15 with different water to binder ratios w b 0 25 0 35 0 45 and 0 55

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=-370307518 (2015-11-09)
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  • Pavement Markings and Safety
    Co principal investigators Shauna Hallmark 515 294 5249 shallmar iastate edu Iowa State University Basak Aldemir Bektas 515 294 4033 basak iastate edu Neal Hawkins 515 294 7733 hawkins iastate edu Student researcher Basak Aldemir Bektas Project status Completed Start date 01 01 08 End date 06 30 09 Publications Report Pavement Markings and Safety 2 05 mb pdf November 2010 Tech transfer summary Pavement Markings and Safety 114 kb pdf Nov 2010 Sponsor s partner s Sponsor s Iowa Department of Transportation Iowa Highway Research Board About the research Abstract Previous research on pavement markings from a safety perspective tackled various issues such as pavement marking retroreflectivity variability relationship between pavement marking retroreflectivity and driver visibility or pavement marking improvements and safety A recent research interest in this area has been to find a correlation between retroreflectivity and crashes but a significant statistical relationship has not yet been found This study investigates such a possible statistical relationship by analyzing five years of pavement marking retroreflectivity data collected by the Iowa Department of Transportation DOT on all state primary roads and corresponding crash and traffic data This study developed a spatial temporal database using measured retroreflectivity data to account for

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1207319931 (2015-11-09)
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  • usRAP-Phase III
    by sponsor Research by keyword Project pages maintained by PI Search research CTRE is an Iowa State University center administered by the Institute for Transportation Address 2711 S Loop Drive Suite 4700 Ames IA 50010 8664 Phone 515 294 8103 FAX 515 294 0467 Website www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved usRAP Phase III Researcher s Principal investigators Reginald Souleyrette Co principal investigators

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=-430022891 (2015-11-09)
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  • Road Safety Audit for County Road W-55 in Washington County, Iowa
    Ames IA 50010 8664 Phone 515 294 8103 FAX 515 294 0467 Website www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved Road Safety Audit for County Road W 55 in Washington County Iowa Horizontal curve at rural cemetery entrance Researcher s Principal investigator Tom McDonald Project status Completed Start date 05 12 09 End date 06 11 09 Publications Report Road Safety Audit for County Road W 55 in Washington County Iowa 625 21 kb pdf June 2009 Sponsor s partner s Sponsor s Iowa Department of Transportation About the research Abstract A road safety audit was conducted for a seven mile section of County Road W 55 in Washington County Iowa In 2006 the average annual daily traffic on this roadway was found to be 1 290 vehicles per day Using crash data from 2001 to 2007 the Iowa Department of Transportation Iowa DOT has identified this roadway as being in the top 5 of Iowa secondary rural roads with the highest density of serious fatal and major injury crashes for single vehicle run off road incidents Considering these safety data the Washington County Engineer requested that a road safety audit be conducted to

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=-1976225896 (2015-11-09)
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  • Road Safety Audit for County Road X-37 in Louisa County, Iowa
    Address 2711 S Loop Drive Suite 4700 Ames IA 50010 8664 Phone 515 294 8103 FAX 515 294 0467 Website www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved Road Safety Audit for County Road X 37 in Louisa County Iowa Horizontal curve just north of 105th Street Researcher s Principal investigator Tom McDonald Project status Completed Start date 06 12 09 End date 06 11 09 Publications Report Road Safety Audit for County Road X 37 in Louisa County Iowa 668 61 kb pdf June 2009 Sponsor s partner s Sponsor s Iowa Department of Transportation About the research Abstract A road safety audit was conducted for a 7 75 mile section of County Road X 37 in Louisa County Iowa In 2006 the average annual daily traffic on this roadway was found to be 680 vehicles per day Using crash data from 2001 to 2007 the Iowa Department of Transportation Iowa DOT has identified this roadway as being in the highest 5 of local rural roads in Iowa for single vehicle run off road crashes Considering these safety data the Louisa County Engineer requested that a road safety audit be conducted to identify areas

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=-313831793 (2015-11-09)
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  • Road Safety Audit for US 6 from Iowa City to West Liberty in Johnson and Muscatine Counties, Iowa
    iastate edu Copyright 1996 2009 Iowa State University All rights reserved Road Safety Audit for US 6 from Iowa City to West Liberty in Johnson and Muscatine Counties Iowa Narrow granular shoulders and worn edge lines Researcher s Principal investigator Tom McDonald Project status Completed Start date 10 14 08 End date 06 05 09 Publications Report Road Safety Audit for US 6 from Iowa City to West Liberty in Johnson and Muscatine Counties Iowa 28 23 mb pdf June 2009 Sponsor s partner s Sponsor s Iowa Department of Transportation About the research Abstract Approximately 13 2 miles of US 6 in eastern Iowa extends from the east corporate limits of Iowa City Iowa to the west corporate limits of West Liberty Iowa This segment of US 6 is a service level B primary highway with an annual daily traffic volume varying from 3 480 vehicles per day vpd to 5 700 vpd According to 2001 2007 crash density data from the Iowa Department of Transportation Iowa DOT the corridor is currently listed among the top 5 of non freeway Iowa DOT roads in several crash categories including crashes involving excessive speed impaired drivers single vehicle run off road

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1844698793 (2015-11-09)
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  • Alternative Strategies for Safety Improvement Investments
    keyword Project pages maintained by PI Search research CTRE is an Iowa State University center administered by the Institute for Transportation Address 2711 S Loop Drive Suite 4700 Ames IA 50010 8664 Phone 515 294 8103 FAX 515 294 0467 Website www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved Alternative Strategies for Safety Improvement Investments Researcher s Principal investigator Tom Maze Co principal investigators Shashi

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=418565907 (2015-11-09)
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