Browse Research and Publications - Illinois Center for Transporation by Title

  • Update of Condition Rating Survey (CRS) Calculation/Prediction Models Phase 2. CRS Calculation Model Development 
    Heckel, Laura; Ouyang, Yanfeng (2007-06)
    The Illinois Department of Transportation (IDOT) surveys every state-maintained roadway in a two-year cycle. Images of the roads are collected digitally and viewed at workstations in the office. The five predominant ...

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  • Update of Condition Rating Survey (CRS) Calculation/Prediction Models Phase 3. CRS Prediction Model Development 
    Heckel, Laura; Ouyang, Yanfeng (2007-08)
    The Illinois Department of Transportation (IDOT) determines a Condition Rating Survey (CRS) value for each roadway section using CRS calculation models. After the rating values have been determined, IDOT uses prediction models ...

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  • Utilizing Lab Tests To Predict Asphalt Concrete Overlay Performance 
    Al-Qadi, Imad L., Lippert, David L., Wu, S., Ozer, H., Renshaw, Greg., Murphy, Timothy R., Butt, A., Gundapuneni, S., Trepanier, James S., Vespa, Joseph W., Said, Izak M., Espinoza Luque, Arturo F., Safi, Fazal R. (Illinois Center for Transportation/Illinois Department of Transportation, 2017-12)
    A series of five experimental projects and three demonstration projects were constructed to better understand the performance of pavement overlays using various levels of asphalt binder replacement (ABR) from reclaimed ...

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  • Video Image Analysis Of Aggregates 
    Tutumluer, Erol; Rao, Chetana; Stefanski, Joseph A. (2000-07)
    This study focused on evaluating performances of different video imaging systems, both commercially available and newly developed, for automating the determination of coarse aggregate (nominal size greater than 4.75 mm or ...

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  • Wind-Powered Electrical Systems - Highway Rest Areas, Weigh Stations, and Team Section Buildings 
    Chapman, Patrick L.; Wiczkowski, Piotr (Illinois Center for Transportation (ICT), 2009-02)
    This project considered the use of wind for providing electrical power at Illinois Department of Transportation (IDOT) highway rest areas, weigh stations, and team section buildings. The goal of the project was to ...

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  • Work Zone Safety Performance on Illinois State Routes 
    Schattler, Kerrie L.; Maharjan, Sadit; Hawkins, Audrey; Maillacheruvu, Krishnanand (Illinois Center for Transportation/Illinois Department of Transportation, 2020-01)
    The Illinois Department of Transportation (IDOT) faces challenges in understanding the causes of increased work zone crashes. Although direct safety metrics of work zone (WZ) crashes are useful, they do not completely ...

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  • WorkZoneQ User Guide for Two-Lane Freeway Work Zones 
    Benekohal, Rahim F.; Ramezani, Hani; Avrenli, Kıvanç A. (2013-06)
    WorkZoneQ was developed in Visual Basic for Applications (VBA) to implement the results of the previous study, “Queue and Users’ Costs in Highway Work Zones.” This report contains the WorkZoneQ user guide. WorkZoneQ consists ...

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