Highway Safety Manual Applied in Missouri - Freeway/software PDF Download
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Author: Carlos Sun Publisher: ISBN: Category : Express highways Languages : en Pages : 0
Book Description
"This report describes the crash landing problem and the solutions devised for solving the problem in Missouri. The crash landing problem refers to the issue of locating crashes correctly within the freeway interchange area. A detailed procedure was established along with a reviewer test so that crash correction can be conducted uniformly among multiple reviewers. Crash landing correction and the subsequent calibration of [High Safety Manual] HSM freeway models will ensure that local driver population, conditions, and environment are considered in Missouri. The types of interchanges applicable to this report include diamonds and Parclos only, since full cloverleaves do not contain terminals" (page viii).
Author: Carlos Sun Publisher: ISBN: Category : Express highways Languages : en Pages : 0
Book Description
"This report describes the crash landing problem and the solutions devised for solving the problem in Missouri. The crash landing problem refers to the issue of locating crashes correctly within the freeway interchange area. A detailed procedure was established along with a reviewer test so that crash correction can be conducted uniformly among multiple reviewers. Crash landing correction and the subsequent calibration of [High Safety Manual] HSM freeway models will ensure that local driver population, conditions, and environment are considered in Missouri. The types of interchanges applicable to this report include diamonds and Parclos only, since full cloverleaves do not contain terminals" (page viii).
Author: Publisher: AASHTO ISBN: 1560514779 Category : Technology & Engineering Languages : en Pages : 886
Book Description
"The Highway Safety Manual (HSM) is a resource that provides safety knowledge and tools in a useful form to facilitate improved decision making based on safety performance. The focus of the HSM is to provide quantitative information for decision making. The HSM assembles currently available information and methodologies on measuring, estimating and evaluating roadways in terms of crash frequency (number of crashes per year) and crash severity (level of injuries due to crashes). The HSM presents tools and methodologies for consideration of 'safety' across the range of highway activities: planning, programming, project development, construction, operations, and maintenance. The purpose of this is to convey present knowledge regarding highway safety information for use by a broad array of transportation professionals"--p. xxiii, vol. 1.
Author: Henry Brown Publisher: ISBN: Category : Road work zones Languages : en Pages : 136
Book Description
The Highway Safety Manual (HSM) is the compilation of national safety research that provides quantitative methods for analyzing highway safety. The HSM presents crash modification functions related to freeway work zone characteristics such as work zone duration and length. These crash modification functions were based on freeway work zones with high traffic volumes in California. When the HSM-referenced model was calibrated for Missouri, the value was 3.78, which is not ideal since it is significantly larger than 1. Therefore, new models were developed in this study using Missouri data to capture geographical, driver behavior, and other factors in the Midwest. Also, new models for expressway and rural two-lane work zones that barely were studied in the literature were developed. A large sample of 20,837 freeway, 8,993 expressway, and 64,476 rural two-lane work zones in Missouri was analyzed to derive 15 work zone crash prediction models. The most appropriate samples of 1,546 freeway, 1,189 expressway, and 6,095 rural two-lane work zones longer than 0.1 mile and with a duration of greater than 10 days were used to make eight, four, and three models, respectively. A challenging question for practitioners is always how to use crash prediction models to make the best estimation of work zone crash count. To solve this problem, a user-friendly software tool was developed in a spreadsheet format to predict work zone crashes based on work zone characteristics. This software selects the best model, estimates the work zone crashes by severity, and converts them to monetary values using standard crash estimates. This study also included a survey of departments of transportation (DOTs), Federal Highway Administration (FHWA) representatives, and contractors to assess the current state of the practice regarding work zone safety. The survey results indicate that many agencies look at work zone safety informally using engineering judgment. Respondents indicated that they would like a tool that could help them to balance work zone safety across projects by looking at crashes and user costs.
Author: Lee August Rodegerdts Publisher: Transportation Research Board ISBN: 0309155118 Category : Technology & Engineering Languages : en Pages : 407
Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Report 672: Roundabouts: An Informational Guide - Second Edition explores the planning, design, construction, maintenance, and operation of roundabouts. The report also addresses issues that may be useful in helping to explain the trade-offs associated with roundabouts. This report updates the U.S. Federal Highway Administration's Roundabouts: An Informational Guide, based on experience gained in the United States since that guide was published in 2000.
Author: James A. Bonneson Publisher: ISBN: 9781560516002 Category : Roads Languages : en Pages : 324
Book Description
"The Highway Safety Manual Supplement includes two new chapters that help utilize the predictive method to estimate the expected average crash frequency (in total, by crash type, or by crash severity) for both freeways and ramps with known characteristics. The third chapter, Appendix B for Part C, describes two specialized procedures to be used with the predictive method presented in the new Chapters 18 and 19; the first procedure is used to calibrate the predictive models; the second, the Empirical Bayes Method, helps combine observed crash frequencies with the estimates provided by the predictive models."-- Publisher's website.
Author: European Conference of Ministers of Transport Publisher: OECD Publishing ISBN: 9282103781 Category : Languages : en Pages : 286
Book Description
Speeding is the number one road safety problem in a large number of OECD/ECMT countries. It is responsible for around one third of the current, unacceptably high levels of road fatalities. Speeding has an impact not only on accidents but also on the ...
Author: Charles V. Zegeer Publisher: DIANE Publishing ISBN: 1428995501 Category : Pedestrian accidents Languages : en Pages : 164
Book Description
This guide is intended to provide information on how to identify safety and mobility needs for pedestrians with the roadway right-of-way. Useful for engineers, planners, safety professionals and decision-makers, the guide covers such topics as: the Walking Environment including sidewalks, curb ramps, crosswalks, roadway lighting and pedestrian over and under passes; Roadway Design including bicycle lanes, roadway narrowing, reducing the number of lanes, one-way/two-way streets, right-turn slip lanes and raised medians; Intersections with roundabouts, T-intersections and median barriers; and Traffic calming designs.
Author: Carlos Sun
Author: Carlos Sun
Author: 
Author: Missouri. Division of Highway Safety
Author: Henry Brown
Author: Lee August Rodegerdts
Author: James A. Bonneson
Author: 
Author: European Conference of Ministers of Transport
Author: 
Author: Charles V. Zegeer