Author: Richard Storm
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 0
Book Description
The objective of this study was to evaluate the change in crash frequency or severity of varying lateral offset distances of high-tension cable median barriers in Minnesota. Crash and traffic data from 2016 to present were conjoined with roadway cross-sectional data and high-tension cable barrier locations to perform cross-sectional analyses for interstate segments equal to or greater than 0.05-miles long. Negative binomial regression models were estimated and used to develop crash modification factors (CMFs) for the following crash types: total crashes, target crashes, and barrier crashes. In addition to evaluating the impact of lateral offset, a naïve before-after evaluation was completed to quantify the impact of installing high-tension cable barrier.
High Tension Cable Median Barrier Safety Effectiveness Evaluation
Author: Richard Storm
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 0
Book Description
The objective of this study was to evaluate the change in crash frequency or severity of varying lateral offset distances of high-tension cable median barriers in Minnesota. Crash and traffic data from 2016 to present were conjoined with roadway cross-sectional data and high-tension cable barrier locations to perform cross-sectional analyses for interstate segments equal to or greater than 0.05-miles long. Negative binomial regression models were estimated and used to develop crash modification factors (CMFs) for the following crash types: total crashes, target crashes, and barrier crashes. In addition to evaluating the impact of lateral offset, a naïve before-after evaluation was completed to quantify the impact of installing high-tension cable barrier.
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 0
Book Description
The objective of this study was to evaluate the change in crash frequency or severity of varying lateral offset distances of high-tension cable median barriers in Minnesota. Crash and traffic data from 2016 to present were conjoined with roadway cross-sectional data and high-tension cable barrier locations to perform cross-sectional analyses for interstate segments equal to or greater than 0.05-miles long. Negative binomial regression models were estimated and used to develop crash modification factors (CMFs) for the following crash types: total crashes, target crashes, and barrier crashes. In addition to evaluating the impact of lateral offset, a naïve before-after evaluation was completed to quantify the impact of installing high-tension cable barrier.
High Tension Cable Median Barrier
Author: Juan C. Medina
Publisher:
ISBN:
Category : Median strips
Languages : en
Pages : 138
Book Description
Publisher:
ISBN:
Category : Median strips
Languages : en
Pages : 138
Book Description
Design and Evaluation of High-tension Cable Median Barrier Hardware
Report on the Advisability of Expanding the Use of Cable Median Barrier in Illinois
Design and Evaluation of High-tension Cable Median Barrier Attachment
Author: Benjamin J. Dickey
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 221
Book Description
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 221
Book Description
Design and Evaluation of a High-tension Cable Median Barrier Attachment
Study of High-tension Cable Barriers on Michigan Roadways
Author: Peter T. Savolainen
Publisher:
ISBN:
Category : Median strips
Languages : en
Pages : 93
Book Description
Median-crossover crashes present the highest risk of fatality and severe injury among all collision types on freeways. These crashes are caused by a variety of factors, including drowsiness, driver distraction, impaired driving, and loss of control. The primary countermeasure to reduce the opportunity for such crashes is the installation of median barriers. The Michigan Department of Transportation (MDOT) began installing hightension cable median barriers in 2008 and has installed approximately 317 miles of high-tension cable median barrier on state freeways as of September 2013. Given the capital costs required for this installation program, as well as the anticipated annual maintenance and repairs costs, a comprehensive evaluation was conducted in order to ascertain the efficacy of cable barrier systems that have been installed to date. Statistical analyses showed that fatal and incapacitating injury crashes were reduced by 33 percent after cable barrier installation. The analysis also showed the median-crossover crash rate was reduced by 86.8 percent and the rate of rollover crashes was reduced by 50.4 percent. In contrast, less severe crashes were found to increase by 155 percent after cable barrier installation. A detailed analysis of crashes involving a vehicle striking the cable barrier was also conducted. The results showed that cable barriers were 96.9 percent effective in preventing penetration in the event of a cable barrier strike. Weather and road conditions were also found to play a role in the frequency and severity of crashes, as well as cable barrier performance. An economic analysis was conducted to determine the cost-effectiveness of the cable barrier system, and guidelines were developed to assist in prioritizing candidate locations for cable barrier installation.
Publisher:
ISBN:
Category : Median strips
Languages : en
Pages : 93
Book Description
Median-crossover crashes present the highest risk of fatality and severe injury among all collision types on freeways. These crashes are caused by a variety of factors, including drowsiness, driver distraction, impaired driving, and loss of control. The primary countermeasure to reduce the opportunity for such crashes is the installation of median barriers. The Michigan Department of Transportation (MDOT) began installing hightension cable median barriers in 2008 and has installed approximately 317 miles of high-tension cable median barrier on state freeways as of September 2013. Given the capital costs required for this installation program, as well as the anticipated annual maintenance and repairs costs, a comprehensive evaluation was conducted in order to ascertain the efficacy of cable barrier systems that have been installed to date. Statistical analyses showed that fatal and incapacitating injury crashes were reduced by 33 percent after cable barrier installation. The analysis also showed the median-crossover crash rate was reduced by 86.8 percent and the rate of rollover crashes was reduced by 50.4 percent. In contrast, less severe crashes were found to increase by 155 percent after cable barrier installation. A detailed analysis of crashes involving a vehicle striking the cable barrier was also conducted. The results showed that cable barriers were 96.9 percent effective in preventing penetration in the event of a cable barrier strike. Weather and road conditions were also found to play a role in the frequency and severity of crashes, as well as cable barrier performance. An economic analysis was conducted to determine the cost-effectiveness of the cable barrier system, and guidelines were developed to assist in prioritizing candidate locations for cable barrier installation.
High Tension Cable Median Barrier
Author: Juan C. Medina
Publisher:
ISBN:
Category : Median strips
Languages : en
Pages : 138
Book Description
Publisher:
ISBN:
Category : Median strips
Languages : en
Pages : 138
Book Description
Development of Guidelines for Cable Median Barrier Systems in Texas
Author: Scott Allen Cooner
Publisher:
ISBN:
Category : Cables
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Cables
Languages : en
Pages :
Book Description
Guidance for the Selection, Use, and Maintenance of Cable Barrier Systems
Author:
Publisher:
ISBN: 9780309258425
Category : Roads
Languages : en
Pages : 148
Book Description
This report provides guidance for the selection, use, and maintenance of cable barrier systems. While cable barrier systems have been in use for more than 70 years, their use has been on the rise and is expected to continue in the future. The increase in use of cable barrier systems has been attributed to the success rate in keeping vehicles from crossing the median, reducing roadway departures, and decreasing impact severity. Due to advancements in cable barrier system technology, installation and repair costs are lower and cable barrier use has increased in varying roadway environments. Safety studies, although limited, have shown that cable barriers help reduce those median cross-over collisions that lead to some of the most severe head-on type crashes. This document will be of particular interest to design, maintenance, traffic, and safety engineering professionals.
Publisher:
ISBN: 9780309258425
Category : Roads
Languages : en
Pages : 148
Book Description
This report provides guidance for the selection, use, and maintenance of cable barrier systems. While cable barrier systems have been in use for more than 70 years, their use has been on the rise and is expected to continue in the future. The increase in use of cable barrier systems has been attributed to the success rate in keeping vehicles from crossing the median, reducing roadway departures, and decreasing impact severity. Due to advancements in cable barrier system technology, installation and repair costs are lower and cable barrier use has increased in varying roadway environments. Safety studies, although limited, have shown that cable barriers help reduce those median cross-over collisions that lead to some of the most severe head-on type crashes. This document will be of particular interest to design, maintenance, traffic, and safety engineering professionals.