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  • Assessing the Spatial and Temporal Differences in Midwestern Crashes Relative to National Data: Implications for Public Policy Decisions
    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 Assessing the Spatial and Temporal Differences in Midwestern Crashes Relative to National Data Implications for Public Policy Decisions Personal and environmental factors influence drivers crash patterns Researcher s Principal investigator Linda Boyle University of Iowa Project status Completed Start date 04 01 07 End date 03 31 08 Publications Report Assessing the Spatial and Temporal Differences in Midwestern Crashes Relative to National Data Implications for Public Policy Decisions 1 13 mb pdf October 2008 Sponsor s partner s Sponsor s Midwest Transportation Consortium University of Iowa About the research Abstract The goal of this study was to explore the effects of drivers personal characteristics and the in car and out car conditions associated with a car crashes on the types of crashes that drivers are most likely to be involved in It was hypothesized that personal and environmental characteristics surrounding a car crash will affect the types of crashes the drivers get involved in Also it was hypothesized that some differences in

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1181138166 (2015-11-09)
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  • Developing a Rural and Urban Roadway Lighting Practical Design Guide for Iowa
    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 Developing a Rural and Urban Roadway Lighting Practical Design Guide for Iowa Use of overhead flashing beacons at all way stop intersections Researcher s Principal investigators Neal Hawkins 515 294 7733 hawkins iastate edu Co principal investigators Shauna Hallmark 515 294 5249 shallmar iastate edu Iowa State University Omar Smadi 515 294 7110 smadi iastate edu Iowa State University Student researchers Caroline Kinzenbaw Hillary Isebrands Massiel Orellana Project status Completed Start date 08 01 05 End date 03 31 08 Publications Report Strategies to Address Nighttime Crashes at Rural Unsignalized Intersections 2 71 mb pdf February 2008 Tech transfer summary Strategies to Address Nighttime Crashes at Rural Unsignalized Intersections 168 kb pdf Feb 2008 Sponsor s partner s Sponsor s Iowa Department of Transportation About the research Abstract Citizens request the installation of roadway lighting in their communities based on several motivations including the experience or perception that lighting improves traffic safety and reduces crime

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1113252604 (2015-11-09)
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  • Performance Measures for Snow and Ice Control Operations
    www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved Performance Measures for Snow and Ice Control Operations Researcher s Principal investigators Tom Maze Stephen Andrle Project status Completed Start date 03 01 05 End date 03 31 08 Publications Report Performance Measures for Snow and Ice Control Operations NA pdf December 2007 Related publication Performance Measures for Snow and Ice Control Operations May 2015 Sponsor s

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1500461445 (2015-11-09)
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  • Simple and Rapid Test for Monitoring the Heat Evolution of Concrete Mixtures for Laboratory and Field Applications, Phase 3
    Wang 515 294 2152 kejinw iastate edu Iowa State University Co principal investigators J Mauricio Ruiz Transtec Group Robert Rasmussen Transtec Group Jim Grove Project status Completed Start date 10 01 06 End date 03 31 08 Publications Report Simple and Rapid Test for Monitoring the Heat Evolution of Concrete Mixtures for Laboratory and Field Applications Phase 3 3 41 mb pdf April 2008 Sponsor s partner s Sponsor s Federal Highway Administration About the research Abstract The objective of this research project is to identify develop and evaluate a simple economical and reliable calorimetry device and test method for monitoring heat evolution of pavement concrete The project contains three phases phase I identifying user needs for calorimeter tests phase II identifying potential calorimeter devices and developing test procedures and phase III verifying the test procedures and the potential applications of calorimetry in field In this report the work done in phases I and II is briefly summarized and the study of phase III is presented The phase III study includes three parts 1 field calorimetry tests 2 lab tests for the field materials and 3 implementation of calorimetry into pavement performance prediction The field tests were conducted at three selected sites US 71 Atlantic Iowa Highway 95 Alma Center Wisconsin and US 63 bypass Ottumwa Iowa A simple isothermal calorimetry and two semi adiabatic calorimetry AdiaCal and IQ drum tests were conducted at these sites The general concrete such as slump air content unit weight placement temperature ASTM C403 set time and pavement properties such as subbase temperature and sawing time were also measured In the lab tests of the field materials nine robust mixes for each field site with different variations in water reducer and or fly ash dosages were developed AdiaCal and isothermal calorimeter tests were performed

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1473830748 (2015-11-09)
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  • Development of Analytical Tools to Evaluate Road Departure Crashes Using Naturalistic Driving Study Data
    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 Development of Analytical Tools to Evaluate Road Departure Crashes Using Naturalistic Driving Study Data Researcher s Principal investigators Shauna Hallmark 515 294 5249 shallmar iastate edu Iowa State University Co principal investigators Linda Boyle University of Iowa Tom Maze Alicia Carriquiry Student researcher Abhisek Mudgal Project status Completed Start date 03 02 07 End date 02 29 08 Sponsor s partner s Sponsor s Second Strategic Highway Research Program SHRP 2 About the research Abstract The main goal of this research is to devleop analytical relationships between roadway environmental vehicle and human factors and road departure risk and oucome This goal mirrors that of the SOI RFP which is to develop analytical methods which can be applied to the fully deployed SHRP 2 driving behavior and crash risk study and to demonstrate those methods using data from recent existing naturalistic driving field studies and other data sources The focus of our research is to map

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=-1536357408 (2015-11-09)
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  • Bridge Deck Integrity Measurements for Asset Management
    Brent Rosenblad University of Missouri Columbia Project status Completed Start date 03 01 07 End date 02 28 08 Publications Report Bridge Deck Integrity Measurements for Asset Management 4 6 mb pdf June 2009 Tech transfer summary Bridge Deck Integrity Measurements for Asset Management 454 kb pdf Jun 2009 Sponsor s partner s Sponsor s Federal Highway Administration Midwest Transportation Consortium About the research Abstract This project investigated the application and implementation of stress wave based methods for assessing the integrity of concrete bridge decks The ultimate objective is to develop reliable and economical non destructive evaluation NDE techniques that evaluate the condition of concrete bridge decks in the field with limited traffic disruption Experimental and theoretical studies were conducted on guided stress waves Lamb waves in concrete plates Field measurements were performed on a full scale concrete bridge deck located at the Remote Testing Facility RTF at the University of Missouri Columbia Measurements were performed using a variety of sensor and source orientations including the placement of sensors on the opposite side of the concrete deck from the source Energy was excited using vertically and horizontally oriented broadband source impacts Dispersion curves were successfully developed from a single sensor

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=-620394403 (2015-11-09)
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  • Bridge Vulnerability Assessment and Mitigation Against Explosions
    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 Bridge Vulnerability Assessment and Mitigation Against Explosions Researcher s Principal investigator Sam Kiger University of Missouri Columbia Project status Completed Start date 03 01 07 End date 02 28 08 Publications Report Bridge Vulnerability Assessment and Mitigation Against Explosions 2 39 mb pdf December 2010 Sponsor s partner s Sponsor s California Department of Transportation Midwest Transportation Consortium University of Missouri Columbia About the research Abstract Develop risk assessment procedures to identify critical bridges in a bridge network Develop bridge vulnerability assessment guide Develop concepts for mitigation and structural protection of bridges Abstract Soon after the attacks of September 11 2001 the Federal Highway Administration FHWA and the American Association of State Highway and Transportation Officials AASHTO assembled a Blue Ribbon Panel of experts to develop strategies and provide guidance to improve the safety and security of bridge and tunnel infrastructure This effort led to recognizing that the threat is real and can be devastating risk assessment

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=619990410 (2015-11-09)
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  • Integration of Asset Management Systems with Load and Resistance Factor Design
    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 Integration of Asset Management Systems with Load and Resistance Factor Design Researcher s Principal investigator J Erik Loehr University of Missouri Columbia Project status Completed Start date 03 01 07 End date 02 28 08 Publications Report Integration of Asset Management Systems with Load and Resistance Factor Design 303 kb pdf November 2008 Sponsor s partner s Sponsor s Midwest Transportation Consortium University of Missouri Columbia About the research Abstract Asset Management principles and systems share common goals and objectives with Load and Resistance Factor Design LRFD techniques Asset management seeks to facilitate cost effective maintenance upgrade and operation of physical assets in a systematic way LRFD methods seek to produce cost effective design decisions based on rational evaluation of performance rather than judgment and experience of individual designers Despite similar goals and objectives there has to date been no attempt to integrate or even

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1414948599 (2015-11-09)
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