Browse Research and Publications - Illinois Center for Transporation by Title

  • Mao, Yiwei; Ouyang, Yanfeng (Illinois Center for Transportation/Illinois Department of Transportation, 2014-11)
    The project was conducted systematic road-safety assessment and identified major risks that can be eliminated or reduced by practical road-improvement measures. Specifically, the primary task of this project was to collect ...

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  • Roesler, Jeffrey R.; Bordelon, Amanda; Ioannides, Anastasios; Beyer, Matthew; Wang, Dong (Illinois Center for Transportation, 2008-06)
    The objectives of this research were to provide the Illinois Department of Transportation (IDOT) with an ultrathin whitetopping (UTW) thickness design method and guidelines for UTW design, concrete material selection, and ...

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  • Buttlar, William G.; Na Chiangmai, C.; Al-Qadi, Imad L.; Murphy, T.R.; Pine, W.J. (Illinois Center for Transportation/Illinois Department of Transportation, 2015-04)
    Fine-graded (F-G) asphalt concrete mixtures are composed of an aggregate structure in which the fine fraction controls the load-carrying capacity of the mix. Other states have reported benefits in using F-G mixtures, ...

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  • Al-Qadi, Imad L.; Carpenter, Samuel H.; Roberts, Geoff; Ozer, Hasan; Aurangzeb, Qazi; Elseifi, Mostafa; Trepanier, James (Illinois Center for Transportation (ICT), 2009-01)
    For current recycled mix designs, the Illinois Department of Transportation (IDOT) assumes 100% contribution of working binder from Recycled Asphalt Pavement (RAP) materials when added to Hot Mix Asphalt (HMA). However, ...

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  • Robert A. Tegge; Jang-Hyeon Jo; Yanfeng Ouyang (2010-03)
    This report explains the procedure involved in developing Safety Performance Functions (SPF) for the road segments and intersections in the state of Illinois, under the jurisdiction of the Illinois Department of Transportation. ...

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  • Rufino, Dulce; Baraka, Kenyatta; Darter, Michael I. (2001-05)
    Smoothness is considered to be the most important ride quality by the highway user. Although bridges are much rougher than pavements, most of the studies conducted to improve pavement smoothness have been focused solely ...

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  • Fries, Ryan; Zhou, Huaguo; Williamson, Michael; Yiu, Yu Liang; Qu, Yuhui; Gu, Patrick (Illinois Center for Transportation/Illinois Department of Transportation, 2014-08)
    The overall goal of both phases of this project was to reduce responder fatalities and injuries, as well as to prevent secondary crashes, especially those involving incident responders. The phases of this project worked ...

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  • Huaguo Zhou; Ryan Fries; Michael Williamson; Zhaofeng Tian; Brent Vaughn (2011-08)
    Each year highway traffic incidents, such as crashes, place responders on and beside roadways with dangerous high-speed traffic. The unexpected conditions of an incident scene have the potential to surprise unsuspecting ...

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  • Imad L. Al-Qadi; Songsu Son; Thomas Zehr (2013-03)
    This project provides techniques to improve hot-mix asphalt (HMA) overlays specifically through the use of special additives and innovative surfacing technologies with aggregates that are locally available in Illinois. ...

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  • Imad L. Al-Qadi; Songsu Son; Samuel H. Carpenter (2013-03)
    This project developed and evaluated four new asphalt concrete (AC) mixtures that use locally available aggregates whenever possible with the ultimate goal of a cost-effective mixture that also improves pavement performance. ...

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  • Al-Qadi, Imad L.; Fini, Eli H.; Masson, Jean-Francois; Loulizi, Amara; McGhee, Kevin K.; Elseifi, Mostafa (2008-11)
    Current crack sealant specifications focuses on utilizing simple empirical tests such as penetration, resilience, flow, and bonding to cement concrete briquettes (ASTM D3405) to measure the ability of the material to ...

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  • Nixon, Wilfrid A.; Gerard, Anissa (Illinois Center for Transportation/Illinois Department of Transportation, 2015-04)
    The purpose of this project was to create a training program that could be used for Illinois Department of Transportation (IDOT) personnel who operated snow plows and spread road salt during winter storms. The training ...

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  • Hiller, Jacob E. (2007)
    In an attempt to better understand and predict concrete pavement behavior, the incorporation of material and climatic factors in mechanistic-empirical design methods is fast becoming a necessity. With the wide range of ...

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  • Kuchma, Dan; Hart, Christopher (Illinois Center for Transportation, 2009-08)
    Prestressing strands, bent into loops and cast within beams, are the most common anchorage system used for handling precast beams. No national guidance exists for the design of lifting loops in members that are shallower ...

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  • James P. Hall; William G. Buttlar; Kevin Burke III (2013-06)
    The Illinois Department of Transportation (IDOT) offers multiple technology transfer courses for engineering, project design, and safety training for state and local agency personnel. These courses are often essential to ...

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  • Schattler, Kerrie L.; Rietgraf, Ashley; Burdett, Beau; Lorton, William (2013-06)
    In spring 2010, the Illinois Department of Transportation initiated an areawide implementation of the flashing yellow arrow (FYA) as the display for the left-turn permissive interval at more than 100 intersections operating ...

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  • Benekohal, Rahim F.; Tirums, Courtney M.; Wang, Stanley L.; Forrler, Earl R. (2000-01)
    This study analyzed truck drivers' opinions about application of intelligent transportation systems (ITS) technologies to commercial vehicle operations (CVO). As part of the evaluation of Automatic Vehicle Identification ...

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  • Benekohal, Rahim F.; Chitturi, Madhav V. (2002-12)
    This study evaluated the performance of the LED modules from four manufacturers (Leotek, Gelcore, Dialight and Precision Solar) who provided the required number of LEDs for testing and evaluation at the Traffic Operations ...

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  • Daniel Kuchma; Christopher Hart; Christopher Hahin (2011-09)
    This was the first phase of an investigation to determine the suitability of free-cutting brass couplings for use in minimizing vehicular damage and driver or passenger injury when light poles are impacted. Breakaway couplings ...

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  • Carpenter, Samuel H. (2007-12)
    The dynamic modulus (E*) of hot mix asphalt (HMA) is the currently preferred structural characterization test for use in structural design. This value has been selected for inclusion in the Mechanistic Empirical Pavement ...

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