Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download A Study Of The Traffic Safety At Reduced Conflict Intersections In Minnesota full books in PDF, epub, and Kindle. Read online A Study Of The Traffic Safety At Reduced Conflict Intersections In Minnesota ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : Derek Leuer
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (994 download)
Download or read book A Study of the Traffic Safety at Reduced Conflict Intersections In Minnesota written by Derek Leuer and published by . This book was released on 2017 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Max Moreland
Publisher :
ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.:/5 (128 download)
Download or read book Traffic Safety Evaluation at Reduced Conflict Intersections in Minnesota written by Max Moreland and published by . This book was released on 2021 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Between 2010 and 2020, 49 Reduced Conflict Intersections (RCIs) were installed on Minnesota Department of Transportation (MnDOT) roadways. The RCI is an alternative intersection layout that is intended to provide safety benefits by limiting the number of points within an intersection that two or more vehicle paths might intersect. Both a before-after analysis at RCIs and a cross-sectional analysis comparing RCIs to untreated intersections were conducted. With the installation of an RCI, both analyses yielded statistically significant decreases in fatal and serious injury crashes, angle crashes, and fatal and serious injury angle crashes. Statistically significant increases in rear-end crashes were found. Both analyses showed no significant changes to sideswipe crashes or total crashes. Based on these results, severity shift in crashes has been seen at the RCIs in Minnesota. The overall number of crashes have not changed, but the high-severity crashes have been reduced while property damage crashes have increased. The large decreases in severe crashes at RCI locations indicate the RCI can be an effective safety treatment.
Author :
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (13 download)
Download or read book Best Practices for the Design and Operation of Reduced Conflict Intersections written by and published by . This book was released on 2016 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kimley-Horn, under contract with the Minnesota Department of Transportation (MnDOT), has conducted a review of guidance documentation on the design and operation of Reduced Conflict Intersections (RCIs), with a particular focus on signal-controlled RCIs. In addition to synthesizing information from a variety of sources, MnDOT also interviewed representatives from the Texas Department of Transportation (TxDOT) and the North Carolina Department of Transportation (NCDOT)—the two states with the most implemented signalized RCIs in the United States at this time. This document summarizes the findings of this literature review, and is intended to be used as a working best practices guidance document for the design and operation of signalized RCIs in Minnesota.
Author :
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (13 download)
Download or read book Evaluation of Truck and Agricultural Vehicle Behavior at Reduced Conflict Intersections written by and published by . This book was released on 2016 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the US, some states have begun to address rural high-speed intersection crashes by physically restricting minor-road crossing movements (left and through turns) to simplify driver decision-making in terms of gap acceptance (the extent to which drivers will be able to utilize a gap in traffic of a particular size or duration). These treatments are referred to in Minnesota as reduced conflict intersections (RCIs). Within Minnesota’s rural corridors, introduction of RCI design has been successful in preventing severe crashes; however, the unusual design has been met with some apprehension from operators of agricultural equipment and large trucks. This, in combination with a resistance to the unfamiliar, has created a desire for more information regarding RCI configuration safety impacts for these types of vehicles. In response to these concerns, this study collected and evaluated large vehicle operational behavior at a set of RCIs and at similar standard control intersections in Minnesota. The researchers collected data in 2015 using a portable video trailer array and metrics on truck turning movements at three RCI intersections in Minnesota and three similar non-RCI intersections, which were proximate to the RCI intersections. The researchers compared travel time, evasive maneuvers, and other metrics for this study. The researchers found no evidence that validated concerns expressed about large vehicle operation at RCIs. Exposure time was not increased at U-turn locations and evasive maneuvers were lower than at control locations.
Author : Max Moreland
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (143 download)
Download or read book Traffic Safety Evaluation at J-turn Intersections in Minnesota written by Max Moreland and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Between 2010 and 2022, 83 J-turn intersections were installed on Minnesota Department of Transportation (MnDOT) roadways. The J-turn is an alternative intersection layout that is intended to provide safety benefits by limiting the number of points within an intersection that two or more vehicle paths might intersect. Before-after analyses at J-turns and control sites were conducted and compared. With the installation of a J-turn, the analyses found decreases in fatal and serious injury crashes, angle crashes, and fatal and serious injury angle crashes. The large decreases in severe crashes at J-turn locations indicate the J-turn can be an effective safety treatment. The analysis also found J-turns have lower crash rates for key crash types as compared to low-volume interchanges and rural, high-speed signalized intersections.
Author : Timothy A. Chalupnik
Publisher :
ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.3/5 (555 download)
Download or read book The Use of Traffic Control at Low Volume Intersections in Minnesota written by Timothy A. Chalupnik and published by . This book was released on 1998 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (959 download)
Download or read book Evaluation of the Impact of Reduced Conflict Intersections on Truck and Large Agricultural Vehicle Crashes written by and published by . This book was released on 2015 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crash and traffic data were requested for known reduced conflict intersections (RCI) locations in six states: Maryland, Minnesota, Mississippi, Missouri, North Carolina and Wisconsin. Five states provided data.
Author : Derek Leuer
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (115 download)
Download or read book A Study of the Traffic Safety at Roundabouts In Minnesota written by Derek Leuer and published by . This book was released on 2017 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Max Moreland
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (143 download)
Download or read book Traffic Safety Evaluation of Lane Constrictor Intersections in Minnesota written by Max Moreland and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Between 2018 and 2019, MnDOT installed a lane constrictor design at 66 side-street, stop-controlled intersections in Minnesota. The lane constrictor design narrows the lane width for mainline approaches via a striped median with centerline rumble strips. By narrowing the mainline lane, the goal of this design is to encourage mainline traffic to slow down as it approaches the intersection. The striped median also provides greater separation between mainline directions and draws more attention to the location of the intersection. Following the installation of lane constrictors at MnDOT intersections, overall crash rates have seen little change but there have been decreases in fatal and serious injury (KA) as well as fatal and all injury (KABC) crash rates. These results indicate the addition of lane constrictors have a positive impact on crashes by reducing the severity of crashes, swapping injury crashes for property damage only crashes.
Author : Mark Wagner
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book Traffic Safety Evaluation of Pedestrians and Bicyclists at Roundabouts in Minnesota written by Mark Wagner and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: By the end of 2022, nearly 450 roundabouts were installed on Minnesota roadways. An evaluation of traffic safety at roundabouts published by MnDOT in 2017 showed substantial decreases in fatal and serious injury crashes for all users at intersections after installation of a roundabout. The safety effects of roundabouts are largely due to geometric design practices that reduce the speed of motorized vehicles as they approach and travel through the intersection. The purpose of this evaluation is to determine if the safety effects seen in the 2017 evaluation still apply to roundabouts with higher levels of use by pedestrians and bicyclists. This evaluation conducts a before-after analysis of 95 roundabouts in Minnesota and an analysis comparing roundabouts to untreated intersections. With the installation of a roundabout, this study finds that the before-after analysis results in a 40% decrease in all severity injury crashes for all roadway users, a 70% decrease in fatal and serious injury crashes for bikes and pedestrians, and a 15% decrease in total pedestrian bike and pedestrian crashes. The results of the comparison analyses suggest roundabouts have better safety performance than through-stop and traffic signal-controlled intersections and similar safety performance to locations with all-way stop control. The results of this evaluation thus indicate that roundabouts can be an effective safety treatment for pedestrian and bicycle crashes.
Author :
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.:/5 (913 download)
Download or read book Measuring Minnesota's Traffic Safety Culture written by and published by . This book was released on 2015 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this study was to develop a survey methodology for Minnesota to measure state-level traffic-safety culture with three objectives: 1. Index traffic-safety culture as a performance indicator. 2. Identify culture-based strategies to achieve safety targets. 3.Assess receptivity of social environment for planned strategies. The survey was designed around a definition of safety culture as "the socially constructed abstract system of meaning, norms, beliefs, and values." (Myers et al., 2014; Reiman & Rollenhagen, 2014) Given that the majority of cases in which driver behavior is associated with fatal crashes can be presumed to be deliberate, these cognitions determine the intention to behave in either a safe or risky manner. This definition emphasizes that cognitions - shared by a group of people - influence the behavioral choices of the individual group members. The survey was designed to be implemented using a paper instrument mailed to households in Minnesota. The sample was based on a random sample of 10,000 Minnesota household addresses selected in November 2013 to cover all Area Transportation Partnership (ATP) boundary areas. The results indicate that many aspects of Minnesota are predictive of the level of engagement in both risky and protective behaviors. Often, the misperception that risk-taking is common and accepted increased the probability that individuals would decide to engage in risky behaviors themselves. The results are used to recommend strategies to increase concern about traffic safety overall and to reduce the incidence of risky behaviors in favor of safer choices.
Author : Max Moreland
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (143 download)
Download or read book Traffic Safety Evaluation of Retroreflective Signal Backplate Borders at Signalized Intersections in Minnesota written by Max Moreland and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Between 2016 and 2021, MnDOT installed retroreflective signal backplate borders at 116 signalized intersections in Minnesota. Retroreflective signal backplate borders are intended to further increase visibility of the signal head both during the day and at night. The goal of installing retroreflectivity to backplates is to reduce crashes at the intersection by drawing more attention to the current phase of the signal. Backplates with retroreflective borders are listed as a Federal Highway Administration Proven Safety Countermeasure with a listed safety benefit of a 15% reduction in total crashes. With the installation of retroreflective signal backplates on MnDOT signals, the changes in crash rates were not found to be statistically significantly different from similar locations that did not have retroreflective signal backplates. These results indicate there has been little impact on crash rates in the few years after the installation of retroreflective signal backplates.
Author : Minnesota. Department of Public Safety
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (319 download)
Download or read book Minnesota Traffic Safety Curriculum Guide written by Minnesota. Department of Public Safety and published by . This book was released on 1970 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Renae Kuehl
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (953 download)
Download or read book Intersection Safety Technologies Guidebook written by Renae Kuehl and published by . This book was released on 2016 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Guidebook contains information that should be useful to engineers as they consider alternative solutions to traffic safety concerns at side-street STOP controlled intersections. It is the intent of this guide to provide the engineer information to aid in the consideration, selection and deployment of LED STOP signs and ICWS at these intersections. These safety strategies should be included for consideration along with other safety improvements detailed in the TEM and Traffic Safety Fundamentals Handbook such as improving visibility of the intersection with improved signing, pavement marking, and intersection lighting; improving sight distance by providing clear sight triangles on all approaches; selecting appropriate traffic control such as ALL WAY STOP; and reduce conflict points through geometric design such as turn lanes or bypass lanes. A shorter, quick reference version of this guidebook was developed as well and can be found at the link listed above.
Author : Henry X. Liu
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (987 download)
Download or read book Estimation of Crossing Conflict at Signalized Intersection Using High-resolution Traffic Data written by Henry X. Liu and published by . This book was released on 2017 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project explores the possibility of using high-resolution traffic signal data to evaluate intersection safety. Traditional methods using historical crash data collected from infrequently and randomly occurring vehicle collisions can require several years to identify potentially risky situations. By contrast, the proposed method estimates potential traffic conflicts using high-resolution traffic signal data collected from the SMART-Signal system. The potential conflicts estimated in this research include both red-light running events, when stop-bar detectors are available, and crossing (i.e. right-angle) conflicts. Preliminary testing based on limited data showed that estimated conflict frequencies were better than AADT for predicting frequencies of angle crashes. With additional validation this could provide a low-cost and easy-to-use tool for traffic engineers to evaluate traffic safety performance at signalized intersections.
Author :
Publisher :
ISBN 13 :
Total Pages : 51 pages
Book Rating : 4.:/5 (68 download)
Download or read book Highway Traffic Safety Study for Minnesota written by and published by . This book was released on 1966 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nichole L. Morris
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book Establishing a Repeatable Method for Presenting Nontraditional Traffic Treatments to Maximize Stakeholder Support written by Nichole L. Morris and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A novel infrastructure design known as the J-turn intersection reduces the risk of serious and fatal crashes at thru-STOP intersections through decreasing points of conflict at an intersection by restricting crossing movements from the minor road. Despite their demonstrated safety efficacy, J-turns have not been met with uniformly positive support. In this research, we first examine novice driver baseline attitudes and driving behaviors on J-turns using a driving simulator study. Results demonstrate that critical errors are decreased with driving exposure to the J-turn; however, attitudes toward J-turns are not improved by exposure alone. A series of studies then evaluates the efficacy of various messaging strategies and educational materials on improving attitudes toward J-turns. The findings from these studies identify that the use of both educational materials and persuasive and customized messaging strategies is an effective method for increasing acceptance of J-turns across diverse resident populations (i.e., rural, suburban, and urban) and among stakeholders in Minnesota. This work demonstrates the importance of the role of proactive educational programs and community initiatives in promoting the acceptance and buy-in toward novel roadway treatments, such as J-turns, among diverse drivers, communities, and stakeholder groups.
