Browse Illinois Center for Transportation by Title

  • Michael Lodes; Rahim F. Benekohal (2013-01)
    The safety benefits and costs associated with implementing adaptive signal control technology (ASCT) were evaluated in this study. A user-friendly online survey was distributed to 62 agencies that had implemented ASCT in ...

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  • Radhika Bamzai; Yongdoo Lee; Zongzhi Li (2011-04)
    The single greatest category of highway vehicle crashes is run-off-the-road incidents. Significant material differences and elevation changes in shoulder edges pose a potential safety hazard when a vehicle leaves the travel ...

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  • James LaFave; Larry Fahnestock; Douglas Foutch; Joshua Steelman; Jessica Revell; Evgueni Filipov; Jerome Hajjar (2013-06)
    The Illinois Department of Transportation (IDOT) commonly uses elastomeric bearings to accommodate thermal deformations in bridges, and these bearings have potential utility in seismic events. IDOT has developed an ...

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  • Kouros Mohammadian; Martina Frignani; Joshua Auld (2011-08)
    The research team conducted a survey of travel and activity scheduling behavior to better understand senior citizens’ trip chaining behavior in the Chicago metropolitan area’s most populous counties. The team used ...

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  • Imad L. Al-Qadi; Jongeun Baek; Zhen Leng; Hao Wang; Matthew Doyen; Jeff Kern; Steven L. Gillen (2012-01)
    The short-term performance of the stone matrix asphalt (SMA) prepared with various warm-mix techniques (EvothermTM 3G, Sasobit®, and foamed asphalt) was conducted using extensive laboratory tests and on-site stiffness ...

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  • Farhad Ansari (2010-07)
    Local bridge scour is caused by the interference of bridge piers with the flow of water and is characterized by the formation of scour holes. Local scour occurs at a bridge pier when the local flow field is strong enough ...

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  • Thomas O’Rourke (2011-01)
    This report evaluates simulation training of IDOT snowplow operators to improve IDOT snow and ice removal operations. Specifically, it assesses a drivers’ evaluation of snowplow simulation training immediately after training ...

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  • Rahim F. Benekohal; Ali Hajbabaie; Juan C. Medina; Ming-heng Wang; Madhav V Chitturi (2010-01)
    The effects of an automated Speed Photo-radar Enforcement (SPE) system on the speed of vehicles in highway work zones were evaluated in this study. The SPE effects were also compared to other speed management treatments ...

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  • Kerrie L. Schattler; Jessica A. Lund (2013-06)
    In spring 2010, the Illinois Department of Transportation initiated an areawide implementation to integrate the flashing yellow arrow as the display for the left-turn permissive interval at more than 100 intersections ...

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  • Prasanta Kalita; Rabin Bhattarai; Richard Cooke; Heidi Howard; Niels Svendsen (2013-04)
    The University of Illinois at Urbana-Champaign (UIUC), the Illinois Department of Transportation (IDOT), and the Construction Engineering Research Laboratory (CERL) of the U.S. Army Corps of Engineers joined in a partnership ...

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  • Hawkins, Neil M.; Fuentes, Juan B. (2003-05)
    Three 30-year old deteriorated pretensioned deck beams were removed from an existing bridge in Illinois and re-assembled in the laboratory into a bridge sub-assemblage. Non-destructive and destructive tests and evaluations ...

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  • King, Daniel; Roesler, Jeffery (Illinois Center for Transportation/Illinois Department of Transportation, 2014-08)
    A performance evaluation of ultra-thin whitetopping (UTW) pavements in Illinois was undertaken in 2012–2014 to evaluate current design procedures and to determine design life criteria for future projects. The two main ...

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  • Imad Al-Qadi; Jeff Kern; Jim Meister (2011-06)
    The Illinois Department of Transportation (IDOT) had an immediate need to evaluate the performance characteristics of new asphalt mixtures. The new mixtures included warm mix asphalt (WMA), stone-matrix asphalt (SMA) ...

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  • Mohammad A. Alhassan; Suleiman A. Ashur (2012-06)
    Concrete overlays are highly susceptible to cracking due to the large surface area that is exposed to drying, the low water to cement ratio, the environmental exposure and loading conditions, the reflected cracks the ...

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  • Al-Qadi, Imad L.; Carpenter, Samuel H.; Leng, Zhen; Ozer, Hasan; Trepanier, James (Illinois Center for Transportation (ICT), 2009-02)
    Interface bonding between hot-mix asphalt (HMA) overlays and Portland cement concrete (PCC) pavements is one of the most significant factors affecting overlay service life. This study was performed to quantify the effects ...

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  • Al-Qadi, Imad L.; Carpenter, Samuel H.; Leng, Zhen; Ozer, Hasan; Trepanier, James (Illinois Center for Transportation, 2008-09)
    Interface bonding between hot-mix asphalt (HMA) overlays and Portland cement concrete (PCC) pavements can be one of the most significant factors affecting overlay service life. Various factors may affect the bonding ...

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  • Hawkins, Neil M.; Fuentes, Juan B. (2000-05)
    A 54-ft. long, 27 inch deep, deteriorated pretensioned deck beam was taken from an existing bridge and tested to failure under equal loads applied 7-ft either side of its midspan. A systematic visual condition assessment ...

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  • Liang Y. Liu (2010-03)
    The Illinois Department of Transportation (IDOT) was appointed to chair an American Association of State Highway and Transportation Officials’ (AASHTO) effort to develop a specification that will simplify and improve how ...

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  • Scott M. Olson; Kurt P. Holloway; Jason M. Buenker; James H. Long; James M. LaFave (2013-05)
    The Illinois Department of Transportation (IDOT) has increasingly constructed integral abutment bridges (IABs) over the past few decades, similar to those in many other states. Because the length and skew limitations currently ...

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  • Gowrishankar, Sudeep; Work, Daniel B. (Illinois Center for Transportation/Illinois Department of Transportation, 2014-04)
    This report summarizes a project undertaken by the University of Illinois on behalf of the Illinois Department of Transportation to evaluate a smartphone application called TrafficTurk for traffic safety and traffic ...

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