Time filter

Source Type

Albany, NY, United States

O'Connor J.S.,State University of New York at Buffalo | Alampalli S.,0 Wolf Road
Bridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management

The New York State Department of Transportation (NYSDOT) employs a vulnerability based Bridge Safety Assurance program in addition to its Bridge Inspection program to enhance bridge safety. Even though the probability of moderate to high earthquake activity is very low in NYS, there is potential for seismic damage with seríous consequences, especially in urban areas such as New York City. Thus, NYSDOT is taking steps to be prepared for this low probability, but high consequence scenarío. Transportation agencies in west coast states such as California have experience with earthquake response but this knowledge is only partially transferable to the east coast. This is due to differences in prominent structure type, the age and connection details of bridges, the severity and footprint of shaking expected, and types of damage expected. Hence, NYSDOT has begun developing post-seismic bridge inspection procedures to ensure public safety and mobility immediately after a seismic event. This paper presents these developments. © 2010 Taylor & Francis Group, London. Source

Romanoschi S.A.,University of Texas at Arlington | Momin S.,University of Texas at Arlington | Bethu S.,Advanced Infrastructure Design | Bendana L.,0 Wolf Road
Transportation Research Record

Vehicle classification and axle load data are required for the structural design of new and rehabilitated flexible and rigid pavements with the new Mechanistic-Empirical Pavement Design Guide (MEPDG) developed under NCHRP Project 1-37A. The axle load spectra are determined from traffic data collected at weigh-in-motion (WIM) stations, and vehicle count and class data are recorded by vehicle classification stations. Some preliminary results are presented for an extensive traffic data-processing effort conducted to develop traffic inputs required by the MEPDG to design pavements in New York State. The data collected by classification and WIM sites from 2004 to 2009 were processed with the TrafLoad software developed in NCHRP Project 1-39. The discussion focuses on the variability of the major traffic input variables required by the MEPDG, as obtained from data collected in New York State, and on the differences between the data obtained from individual stations, state average values, and the default values recommended by the MEPDG, where applicable. The effect of variability of the major traffic input variables on the performance predicted by the MEPDG for a typical flexible pavement structure is also discussed. Source

Agrawal A.K.,City College of New York | Alampalli S.,0 Wolf Road
Bridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management

Highway bridges in the United States are visually inspected at least biennially to evaluate safety and condition of bridge components. Currently, about 25% of the nation's bridges are either structurally deficient or functionally obsolete and thus, are in need of corrective maintenance, repair, rehabilitation, or replacement. This number is expected to increase due to limited capital funds available to reconstruct these aging bridges. In such a situation, an inspection program that can effectively address both safety and performance needs is required. This paper discusses the current inspection program, limitations and challenges, followed by the brief description of two studies meant to improve bridge inspection and management practices. The first study is to evaluate the reliability of the New York State highway bridge inspection process and the second study is the development of deterioration curves for bridge components based on inspection data. © 2010 Taylor & Francis Group, London. Source

Nelson D.,0 Wolf Road | Sporn H.,47 40 21st Street
Transportation Research Record

Since 1973, New York City's Route 9A from Battery Park to West 59th Street has undergone a transformation from a crumbling 1930s elevated highway in a derelict postmaritime environment of rotting piers and abandoned buildings to a first-class multimodal, at-grade, tree-lined urban boulevard with a recreational focus. Route 9A connects Lower Manhattan and the west side of Manhattan with Hudson River Park and the waterfront and is a premier example of the economic revitalization that can take place when urban design and community involvement combine with engineering and the environment. The New York State Department of Transportation reconstructed Route 9A in seven segments, bid as seven contracts. As the last contract adjacent to the World Trade Center was winding down, the terrorist events of September 11, 2001 (9/11), occurred. With the devastation came the rebuilding of Lower Manhattan and a new emphasis on people, environment, and coordination in a post-9/11 environment. Route 9A was and continues to be a vital link. This paper describes the process of transformation and how adversity experienced along the way was overcome - beyond Westway and post-9/11 at the World Trade Center - as well as the citizens' vital role in rebuilding Route 9A. Source

Curtis J.,U.S. Federal Highway Administration | D'Angelo D.,0 Wolf Road | Hallowell M.,University of Colorado at Boulder | Henkel T.,95 John Ireland Boulevard | Molenaar K.,University of Colorado at Boulder
Transportation Research Record

Risk management is implicit in transportation business practices. Administrators, planners, and engineers coordinate many organizational and technical resources to manage transportation network performance. Transportation agencies manage some of the largest and highest-valued public assets and budgets in federal, state, and local governments. It is the agencies' corporate responsibility to set clear strategic goals and objectives to manage these assets so economic growth and livability of their regions improves and the public gets the best value. Risks can affect an agency's ability to meet its goals and objectives. As network and delivery managers, these agencies must identify risks, assess the possible impacts, develop plans to manage the risks, and monitor the effectiveness of their actions. This paper presents the results of (a) a comprehensive literature review, (b) a state-of-the-practice survey of 43 U.S. transportation agencies, and (c) seven case studies from leading transportation organizations in Australia, England, Germany, the Netherlands, and Scotland. The paper concludes with recommendations for achieving enterprise risk management in U.S. highway agencies. Recommendations pertain to formalizing enterprise risk management approaches, embedding risk management in existing business processes, using risk management to build trust with transportation stakeholders, defining leadership and organizational responsibilities for risk management, identifying risk owners, supporting risk allocation strategies, and reexamining existing policies, processes, and standards through rigorous risk management analysis. Source

Discover hidden collaborations