Download or read book Evaluation of the Applicability of the Interactive Highway Safety Design Model to Safety Audits of Two lane Rural Highways written by Mitsuru Saito and published by . This book was released on 2008 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Interactive Highway Safety Design Model (IHSDM) is a suite of software developed by the Federal Highway Administration (FHWA) for monitoring and analyzing two-lane rural highways in the United States. Among the six modules available in IHSDM, two were chosen for evaluation because of their applicability to audit safety of the two-lane rural highways in Utah, namely the Crash Prediction Module (CPM) and the Intersection Review Module (IRM). It was found that the CPM can produce reasonably reliable crash predictions if appropriate input data, especially alignment data, reflect the existing conditions at reasonable accuracy and engineering judgment is used. Based on the findings of the study, it is concluded that the CPM and IRM of IHSDM could be a useful tool for engineering decision-making during safety audits of two-lane rural highways. However, the outputs from these modules demand knowledge and experience in highway design.

Download or read book Evaluation of the Applicability of the Interactive Highway Safety Design Model to Safety Audit of Two lane Rural Highways written by Kaitlin Chuo and published by . This book was released on 2008 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: IHSDM consists of six modules: Policy Review Module (PRM), Crash Prediction Module (CPM), Design Consistency Module (DCM), Traffic Analysis Module (TAM), Intersection Review Module (IRM), and Driver/Vehicle Module (DVM) (still under construction). Among the six modules, two were chosen for evaluation because of their applicability to audit safety of the two-lane rural highways in Utah, namely CPM and IRM.

Download or read book Evaluation of Interactive Highway Safety Design Model Crash Prediction Tools for Two lane Rural Roads on Kansas Department of Transportation Projects written by Howard Lubliner and published by . This book was released on 2014 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluating Local and Tribal Rural Road Design with the Interactive Highway Safety Design Model IHSDM written by Xiao Qin and published by . This book was released on 2013 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Establishing performance-based safety goals and objectives becomes more attainable with the Highway Safety Manual (HSM). However, the safety performance functions (SPFs) in the HSM may not be accurate as they are not calibrated to local conditions. In addition, each SPF and crash modification factor (CMF) assumes a set of base site conditions which may not be realistic for local roadways. Although calibration procedures are available in HSM Part C Appendix A, they should be refined or modified to accommodate local data availability and roadway, traffic, and crash characteristics. It is also necessary to determine a set of base conditions applicable to local highways. This document presents the application of the HSM for rural local two-lane two-way highway segments in South Dakota (SD). The calibration was based on three-year (2009-2011) crash data from 657 roadway segments constituting more than 750 miles of roadways. The calibration process includes establishing new base conditions, developing SPFs, converting CMFs to base conditions as well as substituting default values with state-specific values. Five models have been developed and compared based on statistical goodness-of-fit and calibration factors. The same procedures were also conducted for the tribal two-lane two-way highway segments in SD based on three-year (2009-2011) crash data from 56 roadway segments constituting 199.5 miles of roadway. Results show that the jurisdiction-specific crash type distribution for CMFs can be drastically different from what is presented in the HSM. For rural local two-lane two-way roadways, the HSM method without modification underestimates SD crashes by 35 percent. The method based on SPFs developed from a full model has the best performance. For tribal two-lane two-way roadways, the HSM method without modification overestimates SD crashes by 122 percent. The method using the exponential from of annual average daily traffic (AADT) performs the best. This documentation provides important guidance and empirical results regarding how to calibrate HSM models.

Download or read book Integrated Program for the Interactive Highway Safety Design Model IHSDM and Safety Research written by Christian M. Richard and published by . This book was released on 2004 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: The IHSDM is a suite of software analysis tools for evaluating safety and operation effects of geometric design decisions on two-lane rural highways. IHSDM provides highway project planners, designers, and reviewers in state and local departments of transportation (DOTs) and engineering consulting firms with a suite of safety evaluation tools to support these assessments. This report describes the activities and results associated with Task A.1: Conduct User Evaluation of the IHSDM Interface.

Download or read book Integrated Program for the Interactive Highway Safety Design Model IHSDM and Safety Research written by Christian M. Richard and published by . This book was released on 2004 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: The IHSDM is a suite of software analysis tools for evaluating safety and operation effects of geometric design decisions on two-lane rural highways. IHSDM provides highway project planners, designers, and reviewers in state and local departments of transportation (DOTs) and engineering consulting firms with a suite of safety evaluation tools to support these assessments. The goal of Subtask A.1.1 has been to conduct a preliminary human factors evaluation f the IHSDM interface using existing user-interface design principles.

Download or read book Integrated Program for the Interactive Highway Safety Design Model IHSDM and Safety Research written by John L. Campbell and published by . This book was released on 2004 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: The IHSDM is a suite of software analysis tools for evaluating safety and operation effects of geometric design decisions on two-lane rural highways. IHSDM provides highway project planners, designers, and reviewers in state and local departments of transportation (DOTs) and engineering consulting firms with a suite of safety evaluation tools to support these assessments. The goal of Subtask A.1.2 is to prepare a detailed workplan for conducting a user-interface evaluation.

Download or read book Trade off Considerations in Highway Geometric Design written by Paul B. W. Dorothy and published by Transportation Research Board. This book was released on 2011 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.

Download or read book Development of a Driver Vehicle Module for the Interactive Highway Safety Design Model written by and published by . This book was released on 2007 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Federal Highway Administration is currently developing an integrated set of software tools to improve highway design, the Interactive Highway Safety Design Model (IHSDM). The IHSDM is a suite of software analysis tools for evaluating safety and operational effects of geometric design decisions on two-lane rural highways. The IHSDM provides highway project planners, designers, and reviewers in State and local departments of transportation and engineering consulting firms with a suite of safety evaluation tools to support these assessments. As currently implemented in the latest public release version, the IHSDM includes the following five components: (1) Policy Review Module, (2) Design Consistency Module, (3) Crash Prediction Module, (4) Traffic Analysis Module, and (5) Intersection Review Module. A sixth module, the Driver Vehicle Module (DVM), is a candidate for future release. This report provides a complete technical description of the DVM. Specifically, it provides a description of the specification, verification, and calibration/validation of the DVM for the passenger vehicle and the heavy vehicle component, along with additional functionality enhancements.

Download or read book Prediction of the Expected Safety Performance of Rural Two lane Highways written by Douglas W. Harwood and published by . This book was released on 2000 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents an algorithm for predicting the safety performance of a rural two-lane highway. The accident prediction algorithm consists of base models and accident modification factors for both roadway segments and at-grade intersections on rural two-lane highways. The base models provide an estimate of the safety performance of a roadway or intersection for a set of assumed nominal or base conditions. The accident modification factors adjust the base model predictions to account for the effects on safety for roadway segments of lane width, shoulder width, shoulder type, horizontal curves, grades, driveway density, two-way left-turn lanes, passing lanes, roadside design and the effects on safety for at-grade intersections of skew angle, traffic control, exclusive left- and right-turn lanes, sight distance, and driveways. The accident prediction algorithm is intended for application by highway agencies to estimate the safety performance of an existing or proposed roadway. The algorithm can be used to compare the anticipated safety performance of two or more geometric alternatives for a proposed highway improvement. The accident prediction algorithm includes a calibration procedure that can be used to adapt the predicted results to the safety conditions encountered by any particular highway agency on rural two-lane highways. The algorithm also includes an Empirical Bayes procedure that can be applied to utilize the safety predictions provided by the algorithm together with actual site-specific accident history data.

Download or read book Traffic Engineering Handbook written by ITE (Institute of Transportation Engineers) and published by John Wiley & Sons. This book was released on 2016-01-13 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Get a complete look into modern traffic engineering solutions Traffic Engineering Handbook, Seventh Edition is a newly revised text that builds upon the reputation as the go-to source of essential traffic engineering solutions that this book has maintained for the past 70 years. The updated content reflects changes in key industry standards, and shines a spotlight on the needs of all users, the design of context-sensitive roadways, and the development of more sustainable transportation solutions. Additionally, this resource features a new organizational structure that promotes a more functionally-driven, multimodal approach to planning, designing, and implementing transportation solutions. A branch of civil engineering, traffic engineering concerns the safe and efficient movement of people and goods along roadways. Traffic flow, road geometry, sidewalks, crosswalks, cycle facilities, shared lane markings, traffic signs, traffic lights, and more—all of these elements must be considered when designing public and private sector transportation solutions. Explore the fundamental concepts of traffic engineering as they relate to operation, design, and management Access updated content that reflects changes in key industry-leading resources, such as the Highway Capacity Manual (HCM), Manual on Uniform Traffic Control Devices (MUTCD), AASSHTO Policy on Geometric Design, Highway Safety Manual (HSM), and Americans with Disabilities Act Understand the current state of the traffic engineering field Leverage revised information that homes in on the key topics most relevant to traffic engineering in today's world, such as context-sensitive roadways and sustainable transportation solutions Traffic Engineering Handbook, Seventh Edition is an essential text for public and private sector transportation practitioners, transportation decision makers, public officials, and even upper-level undergraduate and graduate students who are studying transportation engineering.

Download or read book Identification Quantification and Structuring of Two lane Rural Highway Safety Problems and Solutions Volume II Physical and Safety Characteristics of Two lane Rural Highways Final Report written by S. A. Smith and published by . This book was released on 1983 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NHI Catalog written by National Highway Institute (U.S.) and published by . This book was released on 2010 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seven Experiment Designs Addressing Problems of Safety and Capacity on Two lane Rural Highways Experimental design to evaluate MUTCD and other traffic controls for highway construction and maintenance operations on two lane highways written by and published by . This book was released on 1978 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conceptual Plan for an Interactive Highway Safety Design Model written by Douglas W. Harwood and published by . This book was released on 1994 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Knowledge based Approach for Highway Safety Analysis on Two lane Rural Highways written by Ahmad Mohsenzadeh and published by . This book was released on 1990 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book How to Make Two lane Rural Roads Safer written by Ruediger Lamm and published by Witpress. This book was released on 2007 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: When accidents happen, drivers are blamed for the mishap. When drivers consistently fail at certain locations, it then becomes obvious that the problem lies not with them, but with the geometry of the road itself. Because accidents are not evenly distributed throughout the road network, locations with high accident rates are a clear indication that there are other factors involved, besides driver error, which are characterized by the road itself. In most countries, two-lane rural roads make up about 90 percent of rural networks and they account for over 60 percent of highway fatalities worldwide, approximately 500,000 people per year. The methodology described in this book will support the achievement of quantified measures of: design consistency; operating speed consistency; and, driving dynamic consistency. The safety criteria are then combined into an overall safety module for a simplified general overview of the safety evaluation process. The authors also encourage the coordination of safety concerns with important economic, environmental and aesthetic considerations. This book will be an invaluable aid to educators, students, consultants, highway engineers and administrators, as well as scientists in the fields of highway design and traffic safety engineering.