Download or read book Integrated Program for the Interactive Highway Safety Design Model IHSDM and Safety Research written by Kelli Kludt and published by . This book was released on 2005 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The FHWA is currently addressing several general safety areas including examining driver behavior at intersections, developing tools and procedures for intersection design, and conducting human factors literature reviews for Safety R & D Program Areas including Intersections, Pedestrians and Bicyclists, Speed Management, and Visibility. As a part of task B.2 of the Integrated Program for the Interactive Highway Safety Design Model and Safety Research project (DTFH61-03-R-00128) for the FHWA, the Battelle team conducted literature searches on human cognition, perception, and behavior in the areas of intersections (i.e. signalized and non-signalized intersections), speed management (i.e. infrastructure influences on driver speed), pedestrians and bicyclists (i.e. non-motorized transportation), and visibility (i.e. visibility of traffic control devices and materials). This report describes the activities and results associated with task B.2: human factors literature reviews in safety R & D research program areas. 141 documents were initially identified from earlier reviews, database searches, website searches, and recommendations from FHWA staff as potentially having relevance to this project. After an initial review of these documents, 113 were chosen for inclusion in the literature review"--Technical report documentation p.

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 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 2005 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The purpose of this report is to identify the information processing bottle necks that drivers face in specific intersection driving scenarios. These bottlenecks represent situations in which drivers may become "overloaded" by driving demands, which could result in their improperly conducting important driving tasks or skipping certain tasks altogether. In order to identify and characterize information processing bottlenecks, this report presents a series of task analyses in to determine key functions performed by drivers as they approach and navigate through different intersection scenarios. The focus of this task analysis is on identifying the underlying information processing elements, including the perceptual, cognitive, and psychomotor subtasks associated with each individual driving task. A total of seven (7) distinct driving scenarios were investigated in the task analysis, with each scenario being successively decomposed into segments, tasks, and subtasks/information processing elements. The scenarios included in the analysis were: 1) left turn on green light, 2) left turn on yellow light, 3) straight on yellow light, 4) straight on green light, 5) right turn on green light, 6) right turn on red light, and 7) stop on red light. An appendix provides a detailed discussion of the equations and assumptions associated with the development of the vehicle timing/dynamics calculations performed for each of the seven driving scenarios included in the effort."--Technical report documentation p.

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 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 Workshop on Development of the Interactive Highway Safety Design Model Accident Analysis Module written by Douglas W. Harwood and published by . This book was released on 1997 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Prototype Driver Models for Highway Design written by and published by . This book was released on 1999 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: "One of the high-priority research areas of the Federal Highway Administration (FHWA) is the development of the Interactive Highway Safety Design Model (IHSDM). The goal of the IHSDM research program is to develop a systematic approach that will allow highway designers to explicitly consider the safety implications of design decisions from the planning stage through the final design stage"--Page [1].

Download or read book IHSDM Interactive Highway Safety Design Model written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Updating the Crash Modification Factors and Calibrating the IHSDM for Indiana written by Andrew Tarko and published by . This book was released on 2018-08-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Interactive Highway Safety Design Model (IHSDM) is a tool for assessing the safety impact of project-level design decisions by implementing the HSM crash prediction methodology. Safety Performance Functions (SPFs), Crash Modification Factors/Functions (CMFs), calibration factors, and crash proportions are utilized in predicting the number, severity, and type of crashes occurring on various types of roadway facilities. This study updated and expanded the set of CMFs applicable to Indiana conditions for various geometric, traffic, pavement, and other road characteristics. CMFs for 80 various road and control improvements for urban and rural segments, intersections, and interchanges. This report also presents the methodology of calibrating the IHSDM's predictive components based on local data and past research. This method jointly estimates the SPFs and CMFs to preserve the crash prediction consistency. SPFs, CMFs, and crash proportions were calibrated for Indiana rural two-lane segments, rural divided multilane segments, and urban/suburban arterial segments. Example calculations showed that some results were only slightly affected while others vary considerably. This finding confirms the need for calibrating the parameters in the IHSDM to local conditions.

Download or read book Research Results Digest National Cooperative Highway Research Program written by National Cooperative Highway Research Program and published by . This book was released on 1999 with total page 12 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 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 Safety Management Process written by Geni Bahar and published by Transportation Research Board. This book was released on 2003 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rising awareness of and increased attention to sexual harassment has resulted in momentum to implement sexual harassment prevention efforts in higher education institutions. Work on preventing sexual harassment is an area that has recently garnered a lot of attention, especially around education and programs that go beyond the standard anti-sexual harassment trainings often used to comply with legal requirements. On April 20-21, 2021, the National Academies of Sciences, Engineering, and Medicine hosted the workshop Developing Evaluation Metrics for Sexual Harassment Prevention Efforts. The workshop explored approaches and strategies for evaluating and measuring the effectiveness of sexual harassment interventions being implemented at higher education institutions and research and training sites, in order to assist institutions in transforming promising ideas into evidence-based best practices. Workshop participants also addressed methods, metrics, and measures that could be used to evaluate sexual harassment prevention efforts that lead to change in the organizational climate and culture and/or a change in behavior among community members. This publication summarizes the presentations and discussion of the workshop.

Download or read book Federal Highway Administration Research and Technology Program 1997 written by and published by . This book was released on 1997 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.