Browse Research and Publications - Illinois Center for Transporation by Title

  • Benekohal, Rahim F.; Hajbabaie, Ali; Medina, Juan C.; Ming-heng Wang; Chitturi, Madhav V. (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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  • Jiang, Zhoutong.;; Ouyang, Yanfeng (Illinois Center for Transportation/Illinois Department of Transportation, 2017-04)
    “Spillover effect” of red light cameras (RLCs) refers to the expected safety improvement at intersections other than those actually treated. Such effects may be due to jurisdiction-wide publicity of RLCs and the general ...

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  • Schattler, Kerrie L.; Lund, Jessica A. (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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  • Kalita, Prasanta; Bhattarai, Rabin; Richard Cooke; Heidi Howard; Svendsen, Niels (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, Jeffrey (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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  • Al-Qadi, Imad; Kern, Jeff; Meister, Jim (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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  • Tutumluer, Erol; Ozer, Hasan; Hou, Wenting; Mwumvaneza, Vincent (Illinois Center for Transportation/Illinois Department of Transportation, 2015-06)
    Increased emphasis in the construction industry on sustainability and recycling requires production of aggregate gradations with lower dust (cleaner aggregates) and smaller maximum sizes—hence, increased amount of quarry ...

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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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  • Al-Qadi, Imad L.; Ozer, H.; Lambros, J.; El Khatib, A.; Singhvi, P.; Khan, T.; Rivera-Perez, J.; Doll, B. (Illinois Center for Transportation/Illinois Department of Transportation, 2015-12)
    The use of reclaimed asphalt pavement (RAP) and recycled asphalt shingles (RAS) in AC mixtures can reduce demand for virgin aggregates and asphalt binder, bringing environmental and economic benefits. However, replacing ...

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  • Liu, Liang Y. (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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  • Olson, Scott M.; Holloway, Kurt P.; Buenker, Jason M.; Long, James H.; LaFave, James M. (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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  • Andrawes, Bassem; Andrew Pozolo (2011-09)
    Self-consolidating concrete (SCC) is a workable yet stable concrete which flows easily and consolidates under its own weight. Its unique properties can substantially reduce the labor required to pour complex or ...

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  • Andrawes, Bassem; Shin, Moochul; Pozolo, Andrew M. (Illinois Center for Transportation (ICT), 2009-03)
    Self-consolidating concrete (SCC) is a highly workable concrete that flows through densely reinforced or complex structural elements under its own weight. The benefits of using SCC include: a) Reducing labor costs by ...

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  • Lin, Jane; Vallamsundar, Suriya (2013-07)
    In light of the new development in particulate matter (PM) hot-spot regulations and Illinois Department of Transportation (IDOT)’s National Environmental Policy Act (NEPA) documentation requirements, this project is ...

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  • Mohammad S. Ullah; Udit Molakatalla; Rita Morocoima-Black; Ahmed Z. Mohideen (2011-09)
    Travel demand modeling is an important tool in the transportation planning community. It helps forecast travel characteristics into the future at various planning levels such as state, region and corridor. Using travel ...

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