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  • Comparison of LIDAR and Photogrammetry for Highway Planning and Design
    principal investigator Research 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 Comparison of LIDAR and Photogrammetry for Highway Planning and Design Researcher s Principal investigators Shauna Hallmark 515 294 5249 shallmar iastate edu Iowa State University Co principal investigators Reginald Souleyrette Student researcher David Veneziano Project status Completed Start date 05 16 01 End date 05 15 02 Publications Report Comparison of LIDAR and Photogrammetry for Highway Planning and Design 1 4 mb pdf June 2002 Sponsor s partner s Sponsor s Iowa Department of Transportation Partner s Year 2 match to Reg Souleyrette s University of California Santa Barbara Remote Sensing project 404 17 19 About the research Abstract Conventional photogrammetric methods are frequently used to create surface terrain models for roadway planning and design An advanced remote sensing technology LIDAR Light Detecting and Ranging has become a feasible commercially available alternative for collection of coordinates for creation of

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=453 (2015-11-09)
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  • Comparison of LIDAR and Conventional Mapping Methods for Highway Corridor Studies
    Mapping Methods for Highway Corridor Studies Researcher s Principal investigators Reginald Souleyrette Co principal investigators Shauna Hallmark 515 294 5249 shallmar iastate edu Iowa State University Student researcher David Veneziano Project status Completed Start date 05 15 01 End date 05 14 02 Publications Report Comparison of LIDAR and Conventional Mapping Methods for Highway Corridor Studies 1 63MB pdf October 2002 Sponsor s partner s Sponsor s University of California Santa Barbara About the research Abstract This report discusses the use of LIDAR derived surface terrain information to locate or determine the location of new transportation facilities or relocate existing facilities Terrain information is used to construct and evaluate alternative routes and to create final design plans that optimize alignments and grades for the selected alternative Currently ground surveying and photogrammetric mapping are the methods used by state departments of transportation to acquire these data Both methods are time and resource intensive since they require significant data collection and reduction to provide the level of detail necessary for facility location These methods are also limited by environmental factors such as weather The use of light detection and ranging LIDAR to supplement the design process is presented in this report Early

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=457 (2015-11-09)
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  • Artificial Intelligence-Based Optimization of Management of Snow Removal
    of Northern Iowa Tim Strauss University of Northern Iowa Marc A Timmerman University of Northern Iowa Project status Completed Start date 07 01 00 End date 05 01 02 Publications Report Artificial Intelligence Based Optimization of Management of Snow Removal 1 45 mb pdf October 2002 Sponsor s partner s Sponsor s U S Department of Transportation About the research Abstract This report presents the results of research on the development of an intelligent system to integrate a generation of snowplowing routes and the optimization of resource asset allocation for snow removal The developed system known as the snow removal asset management system SRAMS is an expert system containing the logical rules and expertise of the Iowa Department of Transportation s snow removal experts in Black Hawk County Iowa and a geographic information system to access and manage road data The system is implemented on a mid range PC by integrating MapObjects 2 1 a geographic information systems package Visual Rule Studio 2 2 an artificial intelligence shell and Visual Basic 6 0 a programming tool The main goal of the study was to build a knowledge base that allows the Iowa Department of Transportation and other agencies to optimally

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1246552820 (2015-11-09)
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  • Embankment Quality, Phase 3 (TR-401)
    515 294 1463 djwhite iastate edu Project status Completed Start date 02 01 00 End date 03 31 02 Publications Report Embankment Quality Phase 3 TR 401 1 3MB pdf June 2002 Sponsor s partner s Sponsor s Iowa Department of Transportation Iowa Highway Research Board About the research Abstract This report describes test results from a full scale embankment pilot study conducted in Iowa The intent of the pilot project was to field test and refine the proposed soil classification system and construction specifications developed in Phase II of this research and to evaluate the feasibility of implementing a contractor quality control QC and Iowa DOT quality assurance QA program for earthwork grading in the future One of the primary questions for Phase III is Was embankment quality improved The project involved a quality conscious contractor well qualified and experienced Iowa Department of Transportation field personnel a good QC consultant technician and some of our best soils in the state If the answer to the above question is yes for this project it would unquestionably be yes for other projects as well The answer is yes the quality was improved even for this project as evidenced by dynamic cone

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=367 (2015-11-09)
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  • Handbook of Simplified Practice for Traffic Studies (TR-455)
    ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved Handbook of Simplified Practice for Traffic Studies TR 455 Researcher s Principal investigator Carlo D Smith Missouri State University Project status Completed Start date 03 01 01 End date 03 31 02 Publications Report Handbook of Simplified Practice for Traffic Studies TR 455 NA pdf November 2002 Related publications School zone safety programs Technology News Sep 2005 Crash analyses Identifying problem locations and funding mitigation strategies Technology News Jun 2005 Providing drivers with a clear adequate line of sight Technology News Feb 2005 Traffic data collection methods you can count on Technology News Dec 2004 Simplified spot speed studies Technology News Oct 2004 Sponsor s partner s Sponsor s Iowa Department of Transportation Iowa Highway Research Board About the research Abstract This handbook has two primary objectives The first objective is to develop a handbook of traffic studies that is convenient for Iowa jurisdictions to use in assessing traffic issues The second objective is to develop a series of boilerplate scopes of work that local jurisdictions can use to hire outside consulting firms to perform traffic studies The handbook covers five of the most common traffic studies needing

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=428 (2015-11-09)
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  • Process to Identify High Priority Corridors for Access Management Near Large Urban Areas in Iowa
    Completed Start date 04 01 01 End date 03 31 02 Publications Report Process to Identify High Priority Corridors for Access Management Near Large Urban Areas in Iowa 2 MB pdf December 2002 2003 Mid Continent Transportation Research Symposium Process to Identify High Priority Corridors for Access Management Near Large Urban Areas in Iowa Using Spatial Data pdf Aug 2003 Sponsor s partner s Sponsor s Iowa Department of Transportation About the research Abstract When access via driveways and minor public roads from arterial and collector roadways to land development is not effectively managed the result is often increased accident rates increased congestion and increased delays for motorists The most common access management problem in Iowa involves allowing a high density of direct driveway access via private driveways to commercial properties located alongside arterial highways roads and streets Although access management is often thought of as an urban problem some of the most difficult access management issues occur in areas at and just beyond the urban fringe Like most other states Iowa is becoming more urbanized with large urban centers accounting for more and more employment and inbound commuting from rural hinterlands This research project is intended to produce a strategy for addressing current and future access management problems on state highway routes located just outside urban areas that serve as major routes for commuting into and out of major employment centers in Iowa There were two basic goals for the project 1 to develop a ranking system for identifying high priority segments for access management treatments on primary highways outside metro and urban areas and 2 to focus efforts on routes that are major commuting routes at present and in the future The project focused on four lane expressways and two lane arterials most likely to serve extensive commuter

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=431 (2015-11-09)
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  • Guidelines for a Roadway Management System (RMS) for Local Governments
    of local government roadway management practices A questionnaire was developed as part of this survey and sent out to local government agencies throughout the United States This information was then used to establish the proposed RMS guidelines that are relevant for local government agencies needs and expectations In addition a literature survey was conducted to review current roadway management systems and research and to reduce the duplication of research information or training materials that have been developed by other government agencies or private consultants Furthermore the information from both survey methods was evaluated refined and customized to the proposed RMS guidelines Detailed background information on various aspects of a roadway pavement and an RMS is also given in these guidelines to ensure consistency of usage and understanding since these terms and definitions may vary from one agency to another The information includes definitions and terms related to pavements types of pavement types of pavement distress etc Then a section on inventory methodology is included An inventory methodology is established for use in the data collection process It is imperative that only necessary information be collected to reduce time and cost in the data collection process This section also provides terms and definitions used in the inventory program referencing and defining methods for the roadway network and the understanding between project and network levels This information is expected to clarify the scope and level of responsibility for local government agencies Once the data inventory is established the data collection process can be initiated to gather information from concerned pavements within the roadway network The data used to evaluate the current pavement condition can be obtained by a variety of methods such as visual inspection rating nondestructive testing destructive testing and others Moreover there are several mathematical indices that indicate the current pavement condition and that are widely used by local government agencies such as the Present Serviceability Index PSI International Roughness Index IRI and Pavement Condition Index PCI These guidelines also provide the step by step procedure to obtain the PCI value for different low volume flexible and built up pavement types as well as different maintenance strategies In the proposed guidelines the PCI value forms the basis for establishing the other components as well as developing the coordination among the components of an RMS The integration of an RMS with a geographical information system GIS is another approach to achieve the long term use of an RMS by updating the data on pavements within the roadway network This report presents the advantages acquired from the integration of an RMS with GIS as a platform details of systems displaying RMS information on maps components of GIS and the approach to establish a central database Furthermore these guidelines present a method to generate the maintenance rehabilitation and reconstruction actions in order to maintain and improve the pavement performance based upon the PCI obtained earlier This will help local government agencies to decide what repair and maintenance actions would be best suitable for

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=655910253 (2015-11-09)
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  • Automated Bridge De-icing Pilot Project
    edu Copyright 1996 2009 Iowa State University All rights reserved Automated Bridge De icing Pilot Project Researcher s Principal investigator Bill McCall Co principal investigator Stephen Andrle Project status Completed Start date 02 01 00 End date 12 31 01 Sponsor s partner s Sponsor s Iowa Department of Transportation About the research Abstract The automated bridge de icing pilot project is recommended in the Iowa DOT ITS plan The

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=378 (2015-11-09)
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