Download or read book Development of Revised Grade Crossing Hazard Index Model written by Christopher Ryan and published by . This book was released on 2017 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Nevada Department of Transportation (NDOT) plays a key role in addressing highway-rail grade crossing safety issues by allocating federal funding through the Railway-Highway Crossing (Section 1030) Program. This Program requires each state to select eligible projects through a data-driven project selection and prioritization process. NDOT currently relies on the use of a modified version of the New Hampshire Hazard Index formula for this project prioritization. However, NDOT feels that the results of this formula have not accurately reflected actual safety needs of many crossings throughout the state. This report summarizes current grade crossing safety trends in Nevada and at the national level, reviews the strengths and weaknesses of NDOT's current grade crossing safety prioritization procedures, and evaluates potential alternative hazard index models used by other agencies. This report also includes summaries of peer interviews with the Arizona, Oregon, and Utah Departments of Transportation and also includes a summary of feedback received from an Expert Panel consisting of representatives from NDOT, the Federal Railroad Administration, Federal Highway Administration, Union Pacific Railroad, and others. Finally, the report proposes a revised Hazard Index Model for consideration as a replacement for NDOT's current model.

Download or read book The Development of an Improved Railroad highway Grade Crossing Risk Factor Executive Summry Report written by D. E. Scheck and published by . This book was released on 1981 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Highway Rail Grade Crossing Identification and Prioritizing Model Development written by Maxim A. Dulebenets and published by Xlibris Corporation. This book was released on 2014-01-14 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: HIGHWAY-RAIL GRADE CROSSING IDENTIFICATION AND PRIORITIZING MODEL DEVELOPMENT Highway-Rail Grade Crossing Identification and Prioritizing Model Development develops an optimization model and heuristic. This seminal work expertly allocates monetary resources between public highway-rail grade crossings in the State of Tennessee. Highway-Rail Grade Crossing Identification and Prioritizing Model Development applies particular countermeasures. These countermeasures aim to decrease the total number of severe to fatal road accidents with respect to budget available.

Download or read book A Model formula for Deriving a Hazard Index of Rail highway Grade Crossings written by James Minton Coburn and published by . This book was released on 1969 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Expected Accident Frequency Formulas for Rail highway Crossings written by Yoassry M. Elzohairy and published by . This book was released on 2000 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Illinois Department of Transportation (IDOT) uses an Expected Accident Frequency (EAF) formula as one of the parameters in prioritizing the rail-highway grade crossings that need warning devices upgrade. This study evaluated the effectiveness of the formula and assessed the current 0.02 threshold. Field data were collected from three railroad corridors and 93 crossings in Illinois. Four potential models (Connecticut, Michigan, California, and USDOT models) were evaluated using Illinois data and none of them consistently outperformed the IDOT EAF formula. A new Illinois Hazard Index (IHI) formula was developed. The variables used in IHI are average daily traffic, number of trains per day, maximum timetable speed, number of tracks, number of highway lanes, 5-year history, and control devices factor. The IHI formula identified a higher number of locations with a higher crash rate than the IDOT formula did. The revised IHI should be used in combination with other criteria to identify those crossings in need of safety improvement.

Download or read book Grade Crossing Accident Data Assessment written by Wasi A. Hanafi and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the adequacy of existing data as a basis for analysis of the causes of road/rail crossing accidents, and identifies the information gaps. Information comes from organisations representing owners/operators of crossings, regulators, and investigators, who were interviewed to assess their positions on grade crossing safety problems and to examine the data they collect. The report identifies deficiencies in the existing databases, as well as likely sources for more complete information. The appendix volume includes sample forms used for reporting road/rail crossing accidents in various jurisdictions, a summary data matrix of existing databases, and a report on accident prediction, severity prediction, and hazard index formulas that relate to road/rail crossings.

Download or read book Evaluation of Methods for Predicting Rail highway Crossing Hazards written by Ardeshir Faghri and published by . This book was released on 1986 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need for improvement at a rail/highway crossing typically is based on the Expected Accident Rate (EAR) in conjunction with other criteria carrying lesser weight. In recent years new models for assessing the need for improvements have been developed, and in the research reported here five such models selected from a list established from a literature review and a user survey were evaluated. The selected models--the DOT, Peabody-Dimmick, NCHRP No. 50, Coleman-Stewart, and New Hampshire--were evaluated using a data base maintained by the Virginia Department of Highways and Transportation. Additionally, the performance of the methods in predicting the EAR were compared using the chi-square test and the power factor. The results indicated that the DOT formula outperformed the other four methods in both the evaluative and comparative analyses, and thus was recommended for use. The priority list produced by this formula is only one criterion used in determining the need to improve conditions at any crossing. It must be supplemented with information obtained by regular site inspections and with qualitative data that cannot feasibly be incorporated into a mathematical formula.

Download or read book The Development of an Improved Railroad highway Grade Crossing Risk Factor Final Report written by D. E. Scheck and published by . This book was released on 1981 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Implementation Report of the USDOT Grade Crossing Safety Task Force written by United States. Dept. of Transportation. Grade Crossing Safety Task Force and published by . This book was released on 1997 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Federally Coordinated Program of Highway Research Development and Technology written by and published by . This book was released on 1983 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comprehensive Costs of Highway Rail Grade Crossing Crashes written by Daniel Brod and published by Transportation Research Board. This book was released on 2013 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Report 755: Comprehensive Costs of Highway-Rail Grade Crossing Crashes describes a process for estimating the costs of highway-rail grade crossing crashes. A spreadsheet-based tool to facilitate use of the cost estimation process is available online." --Publisher description.

Download or read book Evaluation of Grade Crossing Hazard Ranking Models written by Benjamin R. Sperry and published by . This book was released on 2016 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Public agencies involved with highway-railroad grade crossing safety must allocate available funding to projects which are considered the most in need for improvements. Mathematical models provide a ranking of hazard risk at crossings and support the project selection process. The goal of this research study was to provide ODOT, the ORDC, the PUCO, and other stakeholders with a better understanding of the grade crossing hazard ranking formulas and other methods used by States to evaluate grade crossing hazards and select locations for hazard elimination projects. A comprehensive literature review, along with interviews of state DOT personnel from eight states yielded best practices for hazard ranking and project selection. Detailed evaluation of several different hazard ranking models determined that the existing hazard ranking model used in Ohio, the U.S. DOT Accident Prediction Model, should continue to be used. The research team also recommends greater use of sight distance information at crossings and expanding the preliminary list of crossings to be considered in the annual program as enhancements to the existing project selection process used by the ORDC and ODOT.

Download or read book Highway Rail Crossing Project Selection written by Mohammad Qureshi and published by . This book was released on 2003 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Federally Coordinated Program of Research and Development in Highway Transportation written by and published by . This book was released on 1982 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Code of Federal Regulations Title 49 Transportation PT 200 299 Revised as of October 1 2011 written by U S Office of the Federal Register and published by Government Printing Office. This book was released on 2012 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Code of Federal Regulations Title 49 Transportation Pt 200 299 Revised as of October 1 2009 written by and published by Government Printing Office. This book was released on 2010-02-19 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Railroad Highway Grade Crossing Consolidation Rating Formula written by Zachary Hans and published by . This book was released on 2014 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this project was to provide an objective methodology to support public agencies and railroads in making decisions related to consolidation of at-grade rail-highway crossings. The project team developed a weighted-index method and accompanying Microsoft Excel spreadsheet based tool to help evaluate and prioritize all public highway-rail grade crossings systematically from a possible consolidation impact perspective. Factors identified by stakeholders as critical were traffic volume, heavy-truck traffic volume, proximity to emergency medical services, proximity to schools, road system, and out-of-distance travel. Given the inherent differences between urban and rural locations, factors were considered, and weighted, differently, based on crossing location. Application of a weighted-index method allowed for all factors of interest to be included and for these factors to be ranked independently, as well as weighted according to stakeholder priorities, to create a single index. If priorities change, this approach also allows for factors and weights to be adjusted. The prioritization generated by this approach may be used to convey the need and opportunity for crossing consolidation to decision makers and stakeholders. It may also be used to quickly investigate the feasibility of a possible consolidation. Independently computed crossing risk and relative impact of consolidation may be integrated and compared to develop the most appropriate treatment strategies or alternatives for a highway-rail grade crossing. A crossing with limited- or low-consolidation impact but a high safety risk may be a prime candidate for consolidation. Similarly, a crossing with potentially high-consolidation impact as well as high risk may be an excellent candidate for crossing improvements or grade separation. The results of the highway-rail grade crossing prioritization represent a consistent and quantitative, yet preliminary, assessment. The results may serve as the foundation for more rigorous or detailed analysis and feasibility studies. Other pertinent site-specific factors, such as safety, maintenance costs, economic impacts, and location-specific access and characteristics should be considered.