Browse Research and Publications - Illinois Center for Transporation by Title

  • Vavrik, William R.; Fries, Randy J.; Carpenter, Samuel H.; Aho, Brian D. (2000-03)
    This report presents findings on the effect of flat and elongated coarse aggregate particles on the volumetrics of Superpave Gyratory Compactor (SGC) prepared asphalt mixtures. Select aggregate sources were sampled to ...

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  • Chitturi, Madhav V.; Benekohal, Rahim F. (2005-09)
    Temperature significantly affects the performance of UPS systems. Four different UPS systems were evaluated at sub-zero temperatures and hot temperatures from -25 °C to +72 °C (-13 °F to +162 °F). At high temperatures, ...

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  • McMullen, Bradley J.; Vavrik, William R.; Carpenter, Samuel H. (2000-09)
    This report presents findings on the effect of conditioning time on the volumetric properties of Superpave Gyratory Compactor (SGC) prepared asphalt mixtures. Field mixtures were sampled from the producing plants and then ...

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  • Talebpour, Alireza; Mahmassani, Hani S. (Illinois Center for Transportation, 2014-03)
    The effects of various police patrolling methods on the average speed and crash rate were studied in this report. The number of speeding citations under various enforcement strategies was also investigated. Two surveys ...

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  • Mohammadian, Kouros; Rashidi, Taha H.; Takuriah, Piushimita (Illinois Center for Transportation (ICT), 2009-02)
    The U.S. Department of Health and Human Services has shown that America’s senior population has been growing and will almost double by 2030. This trend continues to challenge researchers who are looking to increase ...

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  • Brand, Alexander S.; Roesler, Jeffery R.; Chavan, Hemant; Evangelista, Francisco, Jr. (2013-09)
    Intelligent compaction is gaining attention for its ability to spatially map the compaction effort of a pavement support layer, and it has also been shown to be able to detect areas of nonuniform compaction, which raises ...

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  • Slattery, Dianne K.; Slattery, Kerry T. (Illinois Center for Transportation/Illinois Department of Transportation, 2015-05)
    This research was performed to enhance the software tool (Illinois Construction Scheduling Expert System, ICSES) developed in Phase I of this project (ICT project R27-86) by mining data collected on IDOT construction ...

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  • Slattery, Dianne K.; Slattery, Kerry T. (2010-04)
    The objective of the project was to evaluate cost-effective means to implement laser scanning technology in the construction phase of IDOT projects. The primary goal was to study the use of a laser scanner for evaluating pay ...

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  • Vavrik, William R.; Carpenter, Samuel H.; Gillen, Steve; Behnke, Jay; Garrott, Steve (Illinois Center for Transportation (ICT), 2008-10)
    To test the fractionated recycled asphalt pavement (FRAP) materials, the Illinois Tollway, working through its contractors and consultants, developed and conducted a project on the applicability and feasibility of using ...

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  • Wolters, Angela; Hoerner, Todd; Smith, Kurt (Illinois Center for Transportation (ICT), 2008-09)
    The Illinois Department of Transportation (IDOT) has evaluated the performance of the pavements in the state in a variety of studies over the years. Since those studies were conducted, several changes in IDOT practices, ...

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  • Hashash, Youssef; Javier, Jamie; Petersen, Theresa; Osborne, Eleanor (2011-11)
    Horizontal Directional Drilling (HDD) is defined as “A steerable system for the installation of pipes, conduits, and cables in a shallow arc using a surfaced launched drilling rig. Traditionally HDD is applied to large scale ...

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  • Elseifi, Mostafa (2007-08)
    Insuring the integrity and security of hot mix asphalt (HMA) samples is critical to assuring the quality of the installed product and complying with Federal requirements. Samples of HMA are often taken at the plant with ...

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  • Hajbabaie, Ali; Benekohal, Rahim F.; Medina, Juan; Chitturi, Madhav (Illinois Center for Transportation (ICT), 2009-04)
    This study was conducted to verify the compliance of vehicular and pedestrian LED traffic signal modules with the Institute of Transportation Engineers specifications; and to assess drivers’ preferences of the LED modules. ...

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  • Al-Qadi, Imad L.; Wang, Hao (Illinois Center for Transportation (ICT), 2009-05)
    The objective of this study is to evaluate pavement damage due to new tire designs using accelerated pavement testing (APT) and finite element (FE) modeling. Three tire configurations were investigated in this study, ...

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  • Hajbabaie, Ali; Benekohal, Rahim F.; Medina, Juan C. (2010-04)
    This report presents the results of five tests on JSF flashing beacons and the results of 10 tests on Carmanah flashing beacons under room temperature conditions. Each test determined the time each module flashed in ...

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  • Hajbabaie, Ali; Benekohal, Rahim F.; Medina, Juan (2011-06)
    This report contains the results of 34 tests for JSF and 26 tests for Carmanah solar-powered flashing beacons operating in mild cold temperature (-6.6 oC), severe cold temperature (-20 oC), and hot temperature (+70 ...

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  • Buttlar, William; Manik, Anshu (2007-10)
    End-Result Specifications (ERS) for asphalt pavement construction offer potential benefits over method-related specifications. They can be used in conjunction with or replacement of traditional QC/QA specifications as ...

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  • Medina, Juan; Benekohal, Rahim F.; Hajbabaie, Ali (2011-06)
    This is the third and final report of the evaluation of the Sensys wireless vehicle detection system at a signalized intersection and a railroad grade crossing. It presents the system performance after one year of ...

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  • Juan C. Medina; Rahim F. Benekohal; Ali Hajbabaie (2011-03)
    The performance of the Sensys wireless vehicle detection system was evaluated under adverse weather conditions (winter and rain) at a signalized intersection and in close proximity to the railroad tracks at a grade ...

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  • Juan C. Medina; Rahim F. Benekohal; Ali Hajbabaie (2009-11)
    The Sensys Wireless Vehicle Detection System uses wireless magnetometers embedded in the pavement that communicate without wires to an access point connected to a standard detector rack. This research evaluated the ...

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