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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  • Mobile User Interface Development for the Virginia Connected Corridors 

    Mollenhauer, Michael; Noble, Alexandria M.; Doerzaph, Zachary R. (Connected Vehicle/Infrastructure University Transportation Center, 2016-10-15)
    The purpose of this research and development activity was to build a mobile application with a low-distraction user interface appropriate for use in a connected vehicle (CV) environment. To realize their full potential, ...
  • Radar-Based Over-the-Air Message Generator for Accelerating Connected Vehicle Deployment 

    Viray, Reginald; Gorman, Thomas; Doerzaph, Zac (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-10-15)
    The market penetration levels needed to realize the full safety, economic, and environmental benefits of connected vehicle (CV) systems will not be met for some time. During the transition, it would be beneficial if data ...
  • Applications of Connected Vehicle Infrastructure Technologies to Enhance Transit Service Efficiency and Safety, Part 2 

    Lee, Young-Jae; Thomas, Clayton; Dadvar, Seyedehsan (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-09-30)
    Many transit agencies provide real-time operational information and trip-planning tools through phone, Web, and smartphone applications. These services utilize a one-way information flow from transit agencies to transit ...
  • Applications of Connected Vehicle Infrastructure Technologies to Enhance Transit Service Efficiency and Safety, Part 1 

    Hancock, Kathleen (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-09-30)
    Implementing Connected Vehicle Infrastructure (CVI) applications for handheld devices into public transportation transit systems would provide transit agencies and their users with two-directional information flow from ...
  • Measuring User Acceptance of and Willingness-to-Pay for CVI Technology 

    Shin, Hyeong-Shic; Callow, Michael; Farkas, Z. Andrew; Lee, Young-Jae; Dadvar, Seyedehsan (Connected Vehicle/Infrastructure University Transportation Center, 2016-09-30)
    The increased prevalence of Connected Vehicles (CVs) is expected to provide significant safety benefits to roadway users. Estimates indicate that the use of CVs will reduce non-impaired driver crashes by 80 percent. To ...
  • Reducing School Bus/Light-Vehicle Conflicts Through Connected Vehicle Communications 

    Palframan, Kelly Donoghue; Alden, Andrew S. (Connected Vehicle/Infrastructure University Transportation Center (CVI-UTC), 2016-08-15)
    This project aimed to develop and test a concept for improving the safety of school bus transportation using connected vehicle technology. The project consisted of three key steps that led to a final road study: 1) conducting ...
  • Comparing Three Methods of Eye-Glance Transition Coding 

    McClafferty, Julie A.; Hankey, Jon M. (National Surface Transportation Safety Center for Excellence, 2016-09-30)
    In order for researchers to analyze driver glance behavior and compare their results to other studies, glance evaluation methodologies must be comparable in terms of how specific terms are defined. To this end, the ...
  • 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 ...

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