Browsing by Author "Corley-Lay, Judith"

Now showing 1 - 7 of 7
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    Conference Take-Aways
    Corley-Lay, Judith (2015-06-04)
    Ideas to take home: From Sam Savage and from the presentation by Peter Kadar, we need to move away from averages and convey risk accurately. Some issues are worldwide, such as effective communication, funding, personnel cuts, privatization, etc. The future is now topics: RWD and TSD are no longer “out there” but are showing more and more promise. Sustainability also is here to stay. Andre Molenaar commented that wasting demolition waste materials is a real waste. Part of reduced budgets is using all materials but doing so in a planned way. Imaging and sensor technology has improved to allow 2-D and 3-D. We have incredible amounts of data but it is a wealth we need to manage to succeed. We have a legacy remembering Katie Zimmerman’s keynote. We have giants among us and a future generation filled with enthusiasm for this work. Throughout this conference, papers were presented from many US states, including Indiana, Washington, Georgia, Maryland, North Carolina, Virginia and others. International papers came from every corner: New Zealand, Australia, Ireland, United Kingdom, South Africa, Namibia. When you get home, the conference organizers would like you to do the following: Identify a few people from the conference with whom you want to remain in touch and drop them an email; identify a topic or two to try on your own wealth of data; read the paper and give it a go; and articulate two or three ideas from the conference to your boss. On behalf of the Scientific Committee, thank you to the many authors of papers for your generous work; to the workshop presenters - the workshops were a huge success; to the reviewers of papers and the judges of the student challenge; and to the session notetakers - a separate PowerPoint with session by session takeaways will be available after the conference. Thank you also to the Scientific Committee and to the staff at Virginia Tech. We wish you all safe travels home.
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    Development and Implementation of a 10-year Plan to Manage Interstate Pavements in NC
    Corley-Lay, Judith (2015-06-04)
    A 10-Year plan was developed to manage preservation, minor and major rehabilitation of the Interstate Highway System in North Carolina. The guidance given in the development of the plan was a budget of $100 million per year and applying some treatment to each segment sometime in the 10 year period. The $100 million per year resulted from analyses using the Pavement Management System (PMS) on the cost to meet and maintain our performance goals for interstate pavements. Without a plan, the funding for interstate maintenance was diverted to other needs, resulting in competition for very limited funding and many deferred needs. The plan was developed using the Pavement Management System construction history, the performance histories of many treatments, the Pavement Condition Survey results and known pavement needs. Because of the planned approach, the 10-year plan includes preservation treatments as well as light and moderate rehabilitation treatments. Treatments ranged from crack sealing to a five inch asphalt overlay. The draft plan resulted in meeting both targets: $100 million per year and touching every segment at least once. Following the submission of the draft plan, $10 million per year was set aside for bridge deck repairs and an additional $5 million per year was assigned to other interstate needs. The result of these reductions was a plan that extends beyond 10 years in order to treat every segment at least once. Five years of the plan have been converted into projects and the first 2 years have been programmed. The plan demonstrates the importance of dependable and consistent funding in maintaining a high level of service.
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    Enhanced Night Visibility Series, Volume XII: Overview of Phase II and Development of Phase III Experimental Plan
    Hankey, Jonathan M.; Blanco, Myra; Neurauter, Michael L.; Gibbons, Ronald B.; Porter, Richard J.; Dingus, Thomas A. (United States. Federal Highway Administration, 2005-12)
    This volume provides an overview of the six studies that compose Phase II of the Enhanced Night Visibility project and the experimental plan for its third and final portion, Phase III. The Phase II studies evaluated up to 12 vision enhancement systems in terms of drivers' ability to detect and recognize objects, visibility of pavement markings, and discomfort caused by glare from oncoming headlamps. Drivers' ability to detect and recognize objects was assessed in clear, rain, fog, and snow conditions. The results indicated that supplemental ultraviolet headlamps do not provide sufficient benefit to justify further testing. The performance of supplemental infrared (IR) vision enhancement systems, on the other hand, was robust enough to suggest further investigation. As a result, additional IR testing, disability glare testing, and off-axis object detection on the Virginia Smart Road were proposed as a replacement for public road Phase III testing with UV-A. The details of the experimental plan for each of these testing areas are provided in the Phase III portion of this report.
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    I-81 ITS Program Evaluation Plan
    Baker, Stephanie Ann; Schroeder, Aaron D.; Rakha, Hesham A.; Hintz, Rewa (United States. Joint Program Office for Intelligent Transportation Systems, 2003-07)
    This document presents the evaluation framework that the Virginia Tech Transportation Institute (VTTI) has prepared for Phase II of the Virginia Department of Transportation's (VDOT) I-81 ITS Model Safety Corridor Program, more commonly referred to as the I-81 ITS Program. The document also includes a description of the I-81 ITS Program, how this evaluation framework was developed, and who has been involved.
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    Maintaining Airport Pavement Friction Using Surface Densification
    Gransberg, Douglas D.; Pittenger, Dominique M. (2015-06-04)
    Pavement structures are an airport's “greatest asset and greatest liability”. As a result, preserving airport pavements is not only the most logical but also the most economical solution because preservation focuses on keeping good pavements in good condition rather than relying on reactive maintenance to merely repair problems after they occur. Therefore, the objective of this paper is to explore an underutilized pavement preservation tool - applying chemical surface treatments to new and existing pavements (runways, taxiways and aprons) to harden them against abrasion, minimize potential for foreign object debris (FOD), reduce permeability to retard degradation from deicing solutions, and to retain skid resistance lost to both snowplowing and rubber accumulation. Besides enhanced safety, one of the greatest benefits of preserving pavements is realized in the reduction of operational disturbance. Shutting down a runway at a major airport to perform unscheduled reactive maintenance can literally paralyze the throughput at that airport and disrupt traffic at connecting airports. Therefore, a treatment that has a marginally higher initial cost may become a bargain if it extends the service life of the pavement and more importantly, extends the time between maintenance disruptions. This paper explains the chemical treatment technologies in the context of airport pavements and explores cost effectiveness on a life cycle cost basis. The paper concludes that there is potential benefit to adopting lithium-based treatments as an airport pavement preservation tool.
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    Pilot Study of Instrumentation to Collect Behavioral Data to Identify On-Road Rider Behaviors
    McLaughlin, Shane B.; Doerzaph, Zachary R.; Cannon, Brad R. (United States. National Highway Traffic Safety Administration, 2011-04)
    Motorcycle-related research questions of interest to the National Highway Traffic Safety Administration (NHTSA) were reviewed. Instrumentation techniques and study procedures that have been used for light- and heavy-vehicle studies were adapted for use in answering the motorcycle-related questions. Three motorcyclists rode with instrumentation for a total of over 3,100 miles. The final data acquisition system and instrumentation recorded acceleration in three axes, yaw, pitch, roll, geographic location, rear-wheel speed, position in lane, turn-signal use, braking, range and closing speed to forward objects, and five video views. The sensor and video data were collected continuously while the bike was running. Development of helmet-mounted eye tracking and three dimensional head tracking instrumentation for use in naturalistic studies was attempted. Study components including recruiting, screening, questionnaires, and garage procedures were also tested. Analyses were conducted to illustrate possible uses of the data and to confirm the effectiveness of the adapted instrumentation. An independent evaluator reviewed the project, including the technical approach, instrumentation, data and questionnaires. Demonstration of motorcycle instrumentation that will support the majority of NHTS's motorcycle research questions was successful. Instrumentation for fine measurement of gaze location in naturalistic situations was not successful. Identification of coarse scan behavior and general areas where riders are looking (e.g., forward, left, right, down, rearward) was possible.
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    Recent Reforms in Asset Management in New Zealand
    Gimblett, Murray (2015-06-04)
    This presentation covers some of the changes to asset management following a comprehensive review of road maintenance in New Zealand. The review suggested increased efficiency could be realized by changing business models, procurement, asset management and critically examining levels of service.