Evaluation of Expected Accident Frequency Formulas for Rail-highway Crossings PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Evaluation of Expected Accident Frequency Formulas for Rail-highway Crossings PDF full book. Access full book title Evaluation of Expected Accident Frequency Formulas for Rail-highway Crossings by Yoassry M. Elzohairy. Download full books in PDF and EPUB format.
Author: Yoassry M. Elzohairy
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 180
Get Book Here
Book Description
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.
Author: Yoassry M. Elzohairy
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 180
Get Book Here
Book Description
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.
Author: Maxim A. Dulebenets
Publisher: Xlibris Corporation
ISBN: 1493149660
Category : Architecture
Languages : en
Pages : 74
Get Book Here
Book Description
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.
Author: Daniel Brod
Publisher: Transportation Research Board
ISBN: 0309283485
Category : Highway-railroad grade crossings
Languages : en
Pages : 119
Get Book Here
Book Description
"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.
Author: Robert C. Taggart
Publisher: Transportation Research Board National Research
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 100
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 538
Get Book Here
Book Description
Author: Marin Marinov
Publisher: Springer Nature
ISBN: 3030820955
Category : Technology & Engineering
Languages : en
Pages : 372
Get Book Here
Book Description
This book offers a timely collection of articles on innovative research and developments in the vast field of rail transport, including rail operations, management, economics, vehicles interior design and sustainable infrastructure. It addresses academics and professionals specializing in railway transport analysis, innovation, systems design and new technology. Continuing on the tradition of the previous volumes, the book reports on innovative solutions for energy saving, noise reduction and baggage handling. It elaborates on the implementation of digital technologies and discusses sustainable rail operations along transport corridors. The concept of hyperloop is also discussed as a possible transport mode of the future. All the contributions were selected through an internal competition and a double-blinded peer review process organized by the RailUniNet members
Author: Ardeshir Faghri
Publisher:
ISBN:
Category : Highway-railroad grade crossings
Languages : en
Pages : 78
Get Book Here
Book Description
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.
Author: Mohammad Qureshi
Publisher:
ISBN:
Category : Highway-railroad grade crossings
Languages : en
Pages : 162
Get Book Here
Book Description
Author: Ian Savage
Publisher: Springer Science & Business Media
ISBN: 146155571X
Category : Business & Economics
Languages : en
Pages : 236
Get Book Here
Book Description
The American public has a fascination with railroad wrecks that goes back a long way. One hundred years ago, staged railroad accidents were popular events. At the Iowa State fair in 1896, 89,000 people paid $20 each, at current prices, to see two trains, throttles wide open, collide with each other. "Head-on Joe" Connolly made a business out of "cornfield meets" holding seventy-three events in thirty-six years. Picture books of train wrecks do good business presumably because a train wreck can guarantee a spectacular destruction of property without the messy loss of life associated with aircraft accidents. A "train wreck" has also entered the popular vocabulary in a most unusual way. When political manoeuvering leads to failure to pass the federal budget, and a shutdown is likely of government services, this is widely called a "train wreck. " In business and team sports, bumbling and lack of coordination leading to a spectacular and public failure to perform is also called "causing a train wreck. " A person or organization who is disorganized may be labelled a "train wreck. " It is therefore not surprising that the public perception of the safety of railroads centers on images of twisted metal and burning tank cars, and a general feeling that these events occur quite often. After a series of railroad accidents, such as occurred in the winter of 1996 or the summer of 1997, there are inevitable calls that government "should do something.
Author: Junggon Sung
Publisher:
ISBN:
Category :
Languages : en
Pages : 472
Get Book Here
Book Description
