Browse Research and Publications - Illinois Center for Transporation by Author "Fries, Ryan"

  • 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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  • Zhou, Huaguo; Fries, Ryan; Williamson, Michael; Tian, Zhaofeng; Vaughn, Brent (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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  • Zhou, Huaguo; Zhao, Jiguang; Fries, Ryan; Gahrooei, Mostafa Reisi; Wang, Lin; Vaughn, Brent; Bahaaldin, Karzan; Ayyalasomayajula, Balasubrahmanyam (2012-10)
    In Illinois, there were 217 wrong-way crashes on freeways from 2004 to 2009, resulting in 44 killed and 248 injured. This research project sought to determine the contributing factors to wrong-way crashes on freeways and ...

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