The Virginia Tech Transportation Institute (VTTI) conducts research to save lives, save time, save money and protect the environment. Researchers and students from multiple fields are continuously developing the techniques and technologies to solve transportation challenges from vehicular, driver, infrastructure and environmental perspectives.

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  • Emergency Vehicle-to-Vehicle Communication 

    Murray-Tuite, Pamela; Phoowarawutthipanich, Aphisit; Islam, Rauful; Hdieb, Naser (Connected Vehicle/Infrastructure University Transportation Center, 2016-08-15)
    Emergency response vehicles (ERVs) frequently navigate congested traffic conditions to reach their destinations as quickly as possible. In this report, several efforts performed by the research group are described, including ...
  • Intersection Management Using In-Vehicle Speed Advisory/Adaptation 

    Rakha, Hesham; Bichiou, Youssef; Hassan, Abdallah; Zohdy, Ismail (Connected Vehicle/Infrastructure University Transportation Center, 2016-08-30)
    In recent years, connected vehicles (CVs) and automated vehicles (AVs) have emerged as a realistic and viable transportation option. Research centers and companies have dedicated substantial efforts to the technology, ...
  • Connected Vehicle Applications for Adaptive Overhead Lighting (On-demand Lighting) 

    Gibbons, Ron; Palmer, Matthew; Jahangiri, Arash (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-07-01)
    The Virginia Tech Transportation Institute (VTTI) has developed an on-demand roadway lighting system and has tested the system’s effect on driver visual performance. On-demand roadway lighting can dramatically reduce energy ...
  • Field Implementation Feasibility Study of Cumulative Travel-Time Responsive Intersection Control Algorithm under Connected Vehicle Technology 

    Choi, Saerona; Park, Byungkyu Brian; Lee, Joyoung (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-03-31)
    This project utilized the Connected Vehicle (CV) environment, which provides two-way wireless communications between vehicles and infrastructure, to (1) improve the Cumulative Travel-time Responsive (CTR) Intersection ...
  • Connected Vehicle Freeway Speed Harmonization Systems 

    Rakha, Hesham; Yang, Hao (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-03-15)
    The capacity drop phenomenon, which reduces the maximum bottleneck discharge rate following the onset of congestion, is a critical restriction in transportation networks that causes additional traffic congestion. Consequently, ...
  • A Connected Vehicle–Enabled Virtual Dynamic Message Sign System Demonstration and Evaluation on the Virginia Connected Vehicle Test Bed 

    Park, Hyungjun; Babiceanu, Simona; Kluger, Robert; Smith, Brian; Recht, David (Connected Vehicle/Infrastructure University Transportation Center, 2016-03-15)
    Dynamic message signs (DMSs) are widely used to deliver traveler information. While these have proven to be effective, key limitations exist: (1) the locations of DMSs are fixed, (2) reading a DMS message is distracting ...
  • Human Factors Evaluation of an In-Vehicle Active Traffic and Demand Management (ATDM) System 

    Sykes, Kayla (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-02-15)
    This research study focused on the development and subsequent evaluation of an in-vehicle Active Traffic and Demand Management (ATDM) system deployed on Interstate 66 in Northern Virginia. The ATDM elements inside the ...
  • Field Testing of Eco-Speed Control Using V2I Communication 

    Rakha, Hesham; Chen, Hao; Almannaa, Mohammed; Kamalanathsharma, Raj Kishore; El-Shawarby, Ihab; Loulizi, Amara (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-04-15)
    This research focused on the development of an Eco-Cooperative Adaptive Cruise Control (Eco-CACC) System and addressed the implementation issues associated with applying it in the field. The Eco-CACC system computes and ...
  • Virginia Connected Vehicle Test Bed System Performance (V2I System Performance) 

    Viray, Reginald; Sarkar, Abhijit; Doerzaph, Zachary (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-05-01)
    This project identified vehicle-to-infrastructure (V2I) communication system limitations on the Northern Virginia Connected Vehicle Test Bed. Real-world historical data were analyzed to determine wireless Dedicated Short ...
  • Bicycle Naturalistic Data Collection 

    Elhenawy, Mohammed; Jahangiri, Arash; Rakha, Hesham (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-06-15)
    Recently, bicycling has drawn more attention as a sustainable and eco-friendly mode of transportation. Between 2000 and 2011, bicycle commuting rates in the United States rose by 80% in large bicycle friendly cities (BFCs), ...
  • Next Generation Transit Signal Priority with Connected Vehicle Technology 

    Hu, Jia; Lee, Young-Jae; Park, Byungkyu Brian; Dadvar, Seyedehsan (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-01-30)
    This project utilized connected vehicle (CV) technology allowing two-way communication among vehicles and infrastructure to develop a next-generation Transit Signal Priority (TSP) system that does not have to rely on ...
  • Connected Motorcycle System Performance 

    Viray, Reginald; Noble, Alexandria M.; Doerzaph, Zachary; McLaughlin, Shane (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-01-15)
    This project characterized the performance of Connected Vehicle Systems (CVS) on motorcycles based on two key components: global positioning and wireless communication systems. Considering that Global Positioning System ...
  • Connected Motorcycle Crash Warning Interfaces 

    Song, Miao; McLaughlin, Shane; Doerzaph, Zachary (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-01-15)
    Crash warning systems have been deployed in the high-end vehicle market segment for some time and are trickling down to additional motor vehicle industry segments each year. The motorcycle segment, however, has no deployed ...
  • Connected Vehicle Enabled Freeway Merge Management – Field Test 

    Smith, Brian L.; Park, Hyungjun; Hayat, Md Tanveer (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-01-01)
    Freeway congestion is a major problem of the transportation system, resulting in major economic loss in terms of traffic delays and fuel costs. With connected vehicle (CV) technologies, more proactive traffic management ...
  • Prototyping and Evaluating a Smartphone Dynamic Message Sign (DMS) Application 

    Smith, Brian L.; Ma, Jiaqi; Park, Hyungjun (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2015-12-15)
    Traveler Information Systems are designed and operated by transportation agencies to provide travelers with real-time traffic information, enabling them to make better travel decisions. One of the most commonly used ways ...
  • Infrastructure Safety Assessment in a Connected Vehicle Environment 

    Smith, Brian L.; Kluger, Robert; Park, Hyungjun (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2015-12-15)
    The goal of the Infrastructure Safety Assessment in a Connected Vehicle (CV) Environment project was to develop a method to identify infrastructure safety “hot spots” using CV data. Using these basic safety messages to ...
  • Safety, Operational, and Energy Impacts of In-vehicle Adaptive Stop Displays Using Connected Vehicle Technology 

    Noble, Alexandria M. (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2015-07-30)
    Un-signalized intersections create multiple opportunities for missed or misunderstood information. Stop sign-controlled intersections have also been shown to be a source of delay and emissions due to their frequent, often ...
  • Infrastructure Pavement Assessment & Management Applications Enabled by the Connected Vehicles Environment – Proof-of-Concept 

    Flintsch, Gerardo; Smith, Brian L. (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2015-09-30)
    The objective of this project was to develop prototypes and conduct a field test of system level applications of a connected vehicle pavement condition measurement system. This allowed the research team to: (1) investigate ...
  • An Innovative Intelligent Awareness System for Roadway Workers Using Dedicated Short-Range Communications 

    Bowman, Darrell S.; Martin, Tom L. (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2015-10-15)
    Roadside workers and emergency responders, such as police and emergency medical technicians, are at significant risk of being struck by vehicular traffic while performing their duties. While recent work has examined active ...
  • Enhanced Camera 

    White, Elizabeth; Chilcott, Dan; Doerzaph, Zachary (National Surface Transportation Safety Center for Excellence, 2016-08-09)
    This report describes testing equipment and procedures developed by the Center for Technology Development at the Virginia Tech Transportation Institute (VTTI) to evaluate critical attributes for cameras used in naturalistic ...

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