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  • Development of Cost-Effective Timber Bridge Repair Techniques for Minnesota
    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 Development of Cost Effective Timber Bridge Repair Techniques for Minnesota Researcher s Principal investigators Brent Phares 515 294 5879 bphares iastate edu Iowa State University Project status In progress Start date 02 01 13 End date 11 30 15 Sponsor s partner s Sponsor s Minnesota Department of Transportation About the research Abstract Currently neither national nor Minnesota sources of guidance for the repair of timber bridges exist At the same time Minnesota county engineers have recognized several types of timber bridges that are in need of repair and maintenance this represents a major concern This research will identify the state of the practice of timber bridge repair through national and international search and will marry those repair techniques with the needs of Minnesota county engineers The most viable techniques will be communicated to engineers through a coordinated outreach effort The principal benefit of this work will be that local system engineers

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=832816113 (2015-11-09)
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  • Durable Pavement Marking and Grooving
    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 Durable Pavement Marking and Grooving Researcher s Principal investigators Neal Hawkins 515 294 7733 hawkins iastate edu Omar Smadi 515 294 7110 smadi iastate edu Iowa State University Project status In progress Start date 01 01 13 End date 12 31 17 Sponsor s partner s Sponsor s Federal Highway Administration State Planning and Research Funding Iowa Department of Transportation Iowa Highway Research Board About the research Abstract Maintaining effective pavement markings year round is a challenge in Iowa where winter maintenance causes so much damage due to the harsh winter exposure from snow plow blades sand and salt brine Given these conditions and a limited painting season it is critical that agencies select the proper pavement marking materials for the roadways in their network For example where should you use regular paint which may not last over the winter as opposed to a more expensive but durable marking product This research project includes evaluating opportunities for state and local agencies to use more durable pavement markings to address visibility

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1439316117 (2015-11-09)
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  • Rapid Bridge Deck Joint Repair Investigation - Phase II
    Phone 515 294 8103 FAX 515 294 0467 Website www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved Rapid Bridge Deck Joint Repair Investigation Phase II Researcher s Principal investigators Charles Jahren 515 294 3829 cjahren iastate edu Project status In progress Start date 01 01 13 End date 08 15 16 Sponsor s partner s Sponsor s Federal Highway Administration State Planning and Research Funding Iowa Department of Transportation About the research Abstract This proposal describes the second phase of a two phase research project that investigates methods to rapidly repair bridge deck expansion joints The first phase of this research project focused on documenting the current means and methods of bridge expansion joint maintenance and replacement and then identifying improvements as part of a workshop The proposal for this previous project is provided in Appendix A The initial proposal left Task 6 Analyze Workshop Ideas intentionally flexible as the ideas to be analyzed were unknown at the time of its writing because the workshop had not been conducted In this document the task 6 will be expanded to include specific subtasks and goals that were derived from the ideas presented during the workshop that

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1766248112 (2015-11-09)
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  • Development of a Wireless MEMS Multifunction Sensor System and Field Demonstration of Embedded Sensors for Monitoring Concrete Pavements
    reserved Development of a Wireless MEMS Multifunction Sensor System and Field Demonstration of Embedded Sensors for Monitoring Concrete Pavements Researcher s Principal investigators Halil Ceylan 515 294 8051 hceylan iastate edu Iowa State University Co principal investigators Kasthurira Gopalakrishnan 515 294 3044 rangan iastate edu Iowa State University Peter Taylor 515 294 9333 ptaylor iastate edu Sunghwan Kim sunghwan iastate edu Liang Dong Project status In progress Start date 12

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=-1514549670 (2015-11-09)
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  • Charging Infrastructure Planning and Impact Assessment for Plug-in Electric Vehicles
    515 294 0467 Website www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved Charging Infrastructure Planning and Impact Assessment for Plug in Electric Vehicles Researcher s Principal investigators Jing Dong 515 294 3957 jingdong iastate edu Project status In progress Start date 10 01 12 End date 09 30 13 Sponsor s partner s Sponsor s Oak Ridge National Laboratory About the research Abstract An adequate infrastructure is an important enabler or driver for the success of certain advanced vehicle technologies As it has the potential to reduce range anxiety for battery electric vehicle BEV drivers and increase fuel savings of plug in electric vehicles PHEVs an adequate charging infrastructure is considered a technological option for reducing the market barriers to plug in electric vehicles PEVs To achieve the sustainable petroleum displacement and environmental improvement goals limited public resources call for cost effective planning for the deployment of charging infrastructure This research project will analyze the effects of deploying electric vehicle charging stations on promoting PEV market and increasing electric miles traveled A charger infrastructure planning model will be established based on longitudinal spatial vehicle data Specifically the GPS based travel survey data collected in the

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1661232097 (2015-11-09)
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  • Measuring Project Complexity and Its Impact
    edu Copyright 1996 2009 Iowa State University All rights reserved Measuring Project Complexity and Its Impact Researcher s Principal investigators Jennifer Shane 515 294 1703 jsshane iastate edu Project status In progress Start date 09 01 12 End date 06 30 15 Sponsor s partner s Sponsor s Construction Industry Institute University of Texas at Austin About the research Abstract The Construction Industry Institute CII currently collects information for benchmarking and metrics that recognizes complexity with one question requesting a project to be ranked on a scale of 1 to 7 with definitions of low average and high complexity While this information is useful there is promise to develop a new and innovative tool s for industry to improve upon the understanding and measurement of complexity The purpose of this project is to develop a methodology including potential tool s to help organizations identify measure and respond to project complexity to hasten organizational change in behavior and increase the likelihood and or predictability of achieving desired outcomes The information already collected by CII can act as a springboard to continue to measure complexity and explore the impact of complexity on project decision making The objectives of this project are as follows Define complexity and its facets including how it differs from other factors that drive project performance such as risk indicators Develop a methodology to identify level of project complexity Develop a complexity measurement approach Assess the relationship between project complexity and project outcomes cost schedule quality etc as well as project practices and decisions both technical and management Identify best practices to address complexity Each objective builds on previous objectives beginning with defining complexity and its facets so a common language and vocabulary regarding complexity is developed This will enable better communication within and between project teams regarding the

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1208611003 (2015-11-09)
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  • Quantifying Pavement Albedo
    iastate edu Michael Heitzman Auburn University Co principal investigators Peter Taylor 515 294 9333 ptaylor iastate edu Project status In progress Start date 08 17 12 End date 08 16 15 Sponsor s partner s Sponsor s Federal Highway Administration About the research Abstract This research effort will evaluate and characterize the heat island phenomenon connected with pavement albedo and associated heat sorption and release dynamics as are experienced with real world urban paving materials Specifically the proposed study will involve field pavement albedo and thermal measurements and subsequent development of a related albedo thermal and conductivity models for different asphalt and concrete pavement sections relative to the following variations Pavement type Pavement structure Pavement age Pavement mix components e g aggregate color etc Geomorphic solar radiance intensity Local climate exposure This project has been designed to gather real world pavement albedo and thermal data at seven different U S urban locations and two prominent national pavement research facilities This project will also develop an analysis model using these data that quantitatively predicts pavement albedo thermal and conductivity character and change in relation to pavement composition aging service etc In addition these analysis models will also be examined for their

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=-963681740 (2015-11-09)
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  • Indefinite Delivery - Indefinite Quantity Contracting
    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 Indefinite Delivery Indefinite Quantity Contracting Researcher s Principal investigators Doug Gransberg 515 294 2140 dgran iastate edu Project status In progress Start date 08 09 12 End date 08 31 14 Sponsor s partner s About the research Abstract Indefinite Delivery Indefinite Quantity IDIQ contracts furnish a public owner with a contractual mechanism to expand its capacity to rapidly execute design construction and design build contracts on multiple projects without the need to develop a separate procurement for each project This research will synthesize information from state departments of transportation DOTs Federal Lands Highway Division and federal agency IDIQ experience benchmarking the state of the practice It will then use a combination of structured interviews with experienced IDIQ project managers and case study research to develop a generic IDIQ framework upon which Minnesota DOT MnDOT specific implementation guidelines can be produced to add IDIQ to the MnDOT procurement toolbox The

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=-1418486365 (2015-11-09)
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