Potential Factors Affecting Roadway Departure Crashes in Oahu, Hawaii
|
|
- Ross Gilbert
- 5 years ago
- Views:
Transcription
1 Potential Factors Affecting Roadway Departure Crashes in Oahu, Hawaii Pasha Hashemi (1), Adrian Ricardo Archilla(2) (1)Graduate Research Assistant, Department of Civil and Environmental Engineering, University of Hawaii at Manoa (2) Associate Professor, Department of Civil and Environmental Engineering, University of Hawaii at Manoa
2 Outline 2/ 26
3 What is A Roadway Departure Crash? The FHWA defines a RwD crash as: A nonintersection crash in which a vehicle crosses an edge line, a centerline, or otherwise leaves the traveled way. Overturn Opposed Direction Collison with Fixed objects 3/ 26
4 Why RwD crashes are important? According to the Federal Highway Administration (FHWA),roadway departure (RwD) crashes account for approximately 56% of highway fatalities in the United States, and 54% in Hawaii. U.S Hawaii 4/ 26
5 General Safety Improvement Process Identify the contributing factors Developing Safety performance functions (SPF) Using Crash Modification Factors for simulate effect of countermeasures Calculating the improvement 5/ 26
6 General Safety Improvement Process Identify the contributing factors Developing Safety performance functions (SPF) Using Crash Modification Factors for simulate effect of countermeasures Calculating the improvement 6/ 26
7 RwD Crashes Lord et al., investigated the relationship between single vehicle run off the road crashes and the geometric characteristics of rural two lane roads Crash frequency and severity will increase when there is a decrease in lateral clearance or shoulder width Liu et al., using data pertaining only to fatal single-vehicle ROR crashes Identified: The roadway, driver, environment, and vehicle-related factors associated with fatal singlevehicle ROR crashes Kim et al., the interplay between demographic, land use, roadway accessibility variables and types of crashes demographic variables such as job count and number of people living below the poverty level are significantly associated with injury crashes and pedestrian and bike crashes 7/ 26
8 No study was found on RwD crashes in Hawaii as well as considering the role of roadway design, human, and environmental factors. Less information was found in the literature about RwD crashes & identifying common circumstances in which RwD crashes occur. 1-Spatial distribution of RwD crashes and contributing factors(roadway design, human factor, environment) 2-Compare the most common circumstances of RwD crashes versus most probable circumstances 8/ 26
9 The State of Hawaii motor vehicle accident reports ( ) Crash State of Hawaii office of planning and the Honolulu land information systems websites to obtain various GIS shapefiles The Honolulu police districts map and related land use information were obtained from the Honolulu police department 9/ 26
10 Map of Oahu 10/ 26
11 Bayesian Statistical Approach The approach of Bayesian statistics is used to recognize the predominance of crash-related factors such as roadway design, human and environmental factors in probability of occurrence RwD crashes = ( ) ( ) = h h = h h = h = h 11/ 26
12 Crash Statistics in Oahu, Hawaii Total number of Crashes Total Number of Fatalities Total Number of Incapacitating Injuries 12/ 26
13 Spatial Distribution Total number of All Crashes 13/ 26 Total number of RwD Crashes
14 Spatial Distribution of RwD Crashes Divided by All Crashes Total number of Crashes Total Number of Fatalities Total Number of Incapacitating Injuries 14/ 26
15 Roadway Departure Crashes, Fatalities and Injuries by Locality Crashes Fatalities Injuries Locality Total Percentage Total Percentage Total Percentage CountyRoad % % % Rural % % % Urban % % % State Road % % % Rural % % % Urban % % % Grand Total % % % 15/ 26
16 Distribution of RwD Crash by Type in Oahu, Hawaii RwD Crash Type Fixed object Head on Overturn /Rollover Ran off the road-right Ra n off the road-left Side Swipe Ground Total District 1 57% 3% 1% 31% 2% 7% 100% District 2 55% 5% 3% 21% 7% 10% 100% District 3 65% 5% 3% 21% 1% 5% 100% District 4 58% 5% 3% 21% 6% 8% 100% District 5 64% 2% 2% 25% 2% 6% 100% District 6 46% 1% 0% 40% 2% 10% 100% District 7 54% 4% 1% 31% 2% 8% 100% District 8 60% 4% 5% 21% 2% 9% 100% 16/ 26
17 Distribution of RwD Crash by traffic way description in Oahu Traffic-way Description Tota l Number of Percentage Fatalities Percentage RwD Cra shes 2-way, Undivided % % 2-way, Divided, Median barrier % % 2-Way Undivided with Left Turn Lane % % 1-Way Trafficway % % 2-way, Divided, Unprotected Median % % Other % % Grand Total % % 17/ 26
18 Distribution of Geometric Design Categorizes in RwD Crash Vertical Alignment Horizontal Alignment 18/ 26
19 Distribution of Road Surface Categorizes in RwD Crash Roadway Surface Composition Roadway Surface Condition 19/ 26
20 Human Factors Total Number of RwD Accidents Human Factor Total Number of RwD Crashes Categorized by Human Factors Distribution of Main Human Factors in RwD Crash Occurrence 20/ 26
21 600 Environmental Factors Total Numebr of RwD Crashes Total Number of RwD Crashes District Clear Cloudy Rain Other Weather Daylight 0 Spot illumination District Continuous Lighting Other(Dawn,Dusk,Dark) Light 21/ 26
22 Bayesian Statistical Analysis Table 6 Probability of Occurrence RwD crashes if classified crash class i (Roadway Design factor) Trafficway 2-way, 2-way, Divided, 2-Way Undivided with 1-Way 2-way, Divided, Description Undivided Median barrier Left Turn Lane Trafficway Unprotected Median 25.64% 22.87% 24.35% 26.08% 9.42% Vertical Alignment Level Hillcrest Uphill Downhill Sag 16.77% 24.61% 28.16% 29.08% 33.78% Roadway Surface Dry Wet Mud Debris Oil Water Sand 17.90% 29.72% 35.71% 33.33% 70.00% 26.67% 33.33% Roadway Composite Concrete Asphalt Gravel Dirt Human Factor 23.93% 19.02% 44.44% 53.17% Probability of Occurrence RwD crashes if classified crash class i (Human Factor) Inattention Misjudgment Fatigue Alcohol Illegal Drugs Illness Legal Meds. Emotional Physical Impaired 13.24% 19.19% 57.75% 42.21% 47.50% 47.52% 50.00% 38.24% 39.34% Probability of Occurrence RwD crashes if classified crash class i (Environmental Factor) Weather Condition Clear Cloudy Rain Hazy Windy Blowing Sand 21.76% 26.50% 36.26% 30.68% 27.10% 23.08% Lighting Condition Daylight Dawn Dusk Spot Continuous Dark Dark/No Dark/Unkno illumination Lighting light wn 17.02% 31.08% 25.50% 35.43% 32.22% 34.85% 50.98% 32.82% 22/ 26
23 While RwD crashes are more frequent in following circumstance: straight roads with no grade, and dried asphalt surface, driver`s misjudgments as a human facto, clear weather with light But they are more probable in these circumstance: Dark or no light condition 2-way undivided roads Curvy roads Hazy weather Most probable RwD crash occurrence Hilly roads Fatigue Oily road surfaces Dirt as a surface composition 23/ 26
24 1. Federal Highway Administration. Roadway Departure (RwD) Strategic Plan Neuman, T. R., R. Pfefer, K. L. Slack, K. K. Hardy, F. Council, H. McGee, L. Prothe, and K. Eccles. A guide for addressing run-off-road collisions. Guidance for Implementation of AAHSTO Strategic Highway Safety PUn. Washington, DC: TRB, Neuman, T. R., R. Pfefer, K. L. Slack, K. K. Hardy, H. McGee, L. Prothe, K. Eccles, and F. Council. GUIDANCE FOR IMPLEMENTATION OF THE AASHTO STRATEGIC HIGHWAY SAFETY PLAN. VOLUME 4: A GUIDE FOR ADDRESSING HEAD-ON COLLISIONS Hauer, E., D. Harwood, F. Council, and M. Griffith. Estimating safety by the empirical Bayes method: a tutorial. Transportation Research Record: Journal of the Transportation Research Board, No. 1784, 2002, pp Peng, Y., S. R. Geedipally, and D. Lord. Investigating the Effect of Roadside features on Single-Vehicle Roadway Departure Crashes on Rural Two-Lane Roads Liu, C., and R. Subramanian. Factors related to fatal single-vehicle run-off-road crashes Almutairi, O. E. Characteristics of Injury and Fatality of Run-Off-Road Crashes on Ohio Roadways. 8. Kim, K., and L. Nitz. Spatial Analysis of Honolulu Motor Vehicle Crashes: I. Spatial Patterns Kim, K., P. Pant, and E. Yamashita. Accidents and accessibility: Measuring influences of demographic and land use variables in Honolulu, Hawaii. Transportation Research Record: Journal of the Transportation Research Board, No. 2147, 2010, pp / 26
25 Acknowledgement Disclaimer The contents of this presentation reflect the views of the authors, who are responsible for the facts and accuracy of the facts presented herein. The contents do not necessarily reflect the official views or policies of the State of Hawaii, Department of Transportation or the Federal Highway Administration. 25/ 26
26 Thank You! Questions? 26/ 26
Truck Tractor Trailer Crash Analysis
Building Tribal Traffic Safety Capacity Truck Tractor Trailer Crash Analysis Arizona Department of Transportation (ADOT) Motor Vehicle Crash (MVC) Data ITCA, Inc. 04/18/06 Truck Tractor Trailer Crash Analysis
More informationKANSAS STRATEGIC HIGHWAY SAFETY PLAN
KANSAS STRATEGIC HIGHWAY SAFETY PLAN 214 Annual Dashboard Report Preliminary Statewide Fatality Analysis The accident data herein, as of February 19, 215, reflect the reporting officer s observations and
More informationPerformance-Based Approaches for Geometric Design of Roads. Douglas W. Harwood MRIGlobal 3 November 2014
Performance-Based Approaches for Geometric Design of Roads Douglas W. Harwood MRIGlobal 3 November 2014 Traditional Approaches to Highway Geometric Design Based on established geometric design criteria
More informationChapter 5 DATA COLLECTION FOR TRANSPORTATION SAFETY STUDIES
Chapter 5 DATA COLLECTION FOR TRANSPORTATION SAFETY STUDIES 5.1 PURPOSE (1) The purpose of the Traffic Safety Studies chapter is to provide guidance on the data collection requirements for conducting a
More informationBenefits of Center Line Rumble Strips on Rural 2-Lane Highways in Louisiana
Benefits of Center Line Rumble Strips on Rural 2-Lane Highways in Louisiana Xiaoduan Sun, Ph.D., P.E. University of Louisiana at Lafayette 2018 Louisiana Transportation Conference Baton Rouge, February
More informationHow Might Connected Vehicles and Autonomous Vehicles Influence Geometric Design? October 10, 2017
How Might Connected Vehicles and Autonomous Vehicles Influence Geometric Design? October 10, 2017 Overview Design Vehicle Design Driver Potential Geometric Impacts of Autonomous Vehicles Connected Vehicles
More informationRelationship of Road Lane Width to Safety for Urban and Suburban Arterials
Relationship of Road Lane Width to Safety for Urban and Suburban Arterials Phd. Alma AFEZOLLI Polytechnic University of Tirana Construction and Infrastructure Department of Civil Engineering Faculty Tirana,
More informationIHSDM- HSM Predictive Methods. Slide 1
IHSDM- HSM Predictive Methods Slide 1 Presentation Outline IHSDM Overview Relationship between HSM and IHSDM Crash Prediction Models and Data Needs IHSDM HSM Predictive Method 2011 Release Preview Questions
More informationTECHNICAL MEMORANDUM- Task C
TECHNICAL MEMORANDUM- Task C Task C: Safety Analysis in Support of Traffic Operations: TxDOT Project 58-6XXIA002 A SYSTEMIC APPROACH TO PROJECT SELECTION FOR HIGHWAY WIDENING DATE: May 4, 2016 TO: FROM:
More informationRURAL HIGHWAY SHOULDERS THAT ACCOMMODATE BICYCLE AND PEDESTRIAN USE (TxDOT Project ) June 7, Presented by: Karen Dixon, Ph.D., P.E.
RURAL HIGHWAY SHOULDERS THAT ACCOMMODATE BICYCLE AND PEDESTRIAN USE (TxDOT Project 0-6840) June 7, 2016 Presented by: Karen Dixon, Ph.D., P.E., TTI Team: Kay Fitzpatrick, Raul Avelar, & Subasish Das Project
More informationWYDOT DESIGN GUIDES. Guide for. Non-NHS State Highways
WYDOT DESIGN GUIDES Guide for Non-NHS State Highways 2014 GUIDE FOR Non-NATIONAL HIGHWAY SYSTEM (Non-NHS) STATE HIGHWAYS PRESERVATION REHABILITATION RECONSTRUCTION INTRODUCTION This Guide is directed to
More informationIMPACT OF GEOMETRIC CONDITIONS ON WYOMING S RURAL CRASHES
IMPACT OF GEOMETRIC CONDITIONS ON WYOMING S RURAL CRASHES Zebulun C. Coulter, E.I.T. Graduate Research Assistant, College of Engineering and Applied Science, University of Wyoming, Laramie WY, USA, e-mail:
More informationRoadside Safety Proven Countermeasures. Emmett McDevitt Transportation Safety Engineer Federal Highway Administration
Roadside Safety Proven Countermeasures Emmett McDevitt Transportation Safety Engineer Federal Highway Administration Safety Statistics On average each year 43,000 + people die in traffic related crashes.
More informationCharacteristics of Traffic Accidents in Highway Work Zones
Characteristics of Traffic Accidents in Highway Work Zones A DETAILED ANALYSIS OF WORK ZONE ACCIDENTS REPORTED ON NEW YORK STATE DEPARTMENT OF TRANSPORTATION CONSTRUCTION PROJECTS ESTABLISHED THE PREDOMINANT
More informationMUTCD Part 6G: Type of Temporary Traffic Control Zone Activities
MUTCD Part 6G: Type of Temporary Traffic Control Zone Activities 6G.01 Typical Applications Each temporary traffic control (TTC) zone is different. Many variables, such as location of work, highway type,
More informationAccess Location, Spacing, Turn Lanes, and Medians
Design Manual Chapter 5 - Roadway Design 5L - Access Management 5L-3 Access Location, Spacing, Turn Lanes, and Medians This section addresses access location, spacing, turn lane and median needs, including
More information1 Monash University Accident Research Centre, Monash University, Victoria, RACV, 550 Princes Highway Noble Park, Victoria, 3174.
Roadside Environment Safety: a statistical analysis of collisions with fixed roadside objects in Victoria Amanda Delaney 1, Stuart Newstead 1, Bruce Corben 1, Jim Langford 1 and Peter Daly 2 1 Monash University
More informationEvaluation of Large-Truck Fixed-Object Crashes at Bridge Structures in Kansas
Report # MATC-KU: 466 Final Report 25-1121-0001-466 Evaluation of Large-Truck Fixed-Object Crashes at Bridge Structures in Kansas Steven D. Schrock, Ph.D., P.E. Associate Professor Civil, Environmental,
More informationInternational Journal of Civil Engineering and Technology (IJCIET), ISSN (Print), AND TECHNOLOGY (IJCIET)
INTERNATIONAL ISSN 0976 6316(Online), Volume JOURNAL 5, Issue 6, June (2014), OF pp. 16-24 CIVIL IAEME ENGINEERING AND TECHNOLOGY (IJCIET) ISSN 0976 6308 (Print) ISSN 0976 6316(Online) Volume 5, Issue
More informationRoad Safety Audit Course Participant Guidebook. August 22 & 23, Cleveland Avenue Columbus, Ohio
Road Safety Audit Course Participant Guidebook August 22 & 23, 2017 Cleveland Avenue Columbus, Ohio 1 2 Table of Contents Executive Summary... 5 Cleveland Avenue City of Columbus... 6 Road Location Details...
More informationCE576: Highway Design and Traffic Safety
CE576: Highway Design and Traffic Safety Predicting Crash Frequency for Two-Lane Rural Highway Segments Cross Sectional Elements Ahmed Abdel-Rahim, Ph.D., P.E. Civil Engineering Department University of
More informationSafety Assessment of Installing Traffic Signals at High-Speed Expressway Intersections
Safety Assessment of Installing Traffic Signals at High-Speed Expressway Intersections Todd Knox Center for Transportation Research and Education Iowa State University 2901 South Loop Drive, Suite 3100
More informationSignalization and Safety. A Study of the Safety Effects of Signalizing Intersections on Colorado State Highways
Presentation by Richard G. Sarchet, P.E. of the Colorado Department of Transportation at the TRB National Roundabout Conference in Vail, Colorado May 2005 P Why do we Install Traffic Signals? Because They
More informationFlorida s Intersection Safety Implementation Plan (ISIP)
Florida Department of TRANSPORTATION Florida s Intersection Safety Implementation Plan (ISIP) Alan El-Urfali, PE State Traffic Engineering and Operations Office March 28, 2017 Intersection Safety Implementation
More informationPEDESTRIAN/BICYCLIST CRASH ANALYSIS 2015
PEDESTRIAN/BICYCLIST CRASH ANALYSIS 2015 Central Arkansas Regional Transportation Study Table of Contents Executive Summary... 3 CARTS Pedestrian/Bicycle Crash Analysis... 3 Report Format... 3 Results...
More informationPedestrian Accidents in Kentucky
Transportation Kentucky Transportation Center Research Report University of Kentucky Year 1976 Pedestrian Accidents in Kentucky Charles V. Zegeer Robert C. Deen Kentucky Department of Transportation Kentucky
More informationENGINEERING DRIVER SAFETY INTO PAVEMENT PRESERVATION
ENGINEERING DRIVER SAFETY INTO PAVEMENT PRESERVATION 2015 TxDOT Short Course Miguel Arellano, P.E. Austin District Pavement Engineer October 13, 2015 Table of Contents 1 Goals: Overall Reduction in Crashes
More informationEngineering Countermeasures for Transportation Safety. Adam Larsen Safety Engineer Federal Highway Administration
Engineering Countermeasures for Transportation Safety Adam Larsen Safety Engineer Federal Highway Administration 360-619-7751 Adam.Larsen@DOT.GOV Countermeasure Selection Resources Manual for Selecting
More informationMaine Highway Safety Facts 2016
Maine Highway Safety Facts 216 216 MAINE HIGHWAY SAFETY FACTS The Bureau of Highway Safety and the Maine Department of Transportation are pleased to present the 216 edition of Maine Highway Safety Facts.
More informationWYDOT DESIGN GUIDES. Guide for. NHS Arterial (Non-Interstate)
WYDOT DESIGN GUIDES Guide for NHS Arterial (Non-Interstate) 2014 GUIDE FOR NATIONAL HIGHWAY SYSTEM (NHS) HIGHWAYS (NHS ARTERIALS, Non-Interstate) PRESERVATION REHABILITATION RECONSTRUCTION INTRODUCTION
More informationGeometric Categories as Intersection Safety Evaluation Tools
Geometric Categories as Intersection Safety Evaluation Tools John R. Campbell Ayres Associates N19 W24075 Riverwood Drive, Suite 300 Waukesha, WI 53188 campbellj@ayresassociates.com Keith K. Knapp Engineering
More informationCrash Data Analysis for Converting 4-lane Roadway to 5-lane Roadway in Urban Areas
Crash Data Analysis for Converting 4-lane Roadway to 5-lane Roadway in Urban Areas Xiaoduan Sun, University of Louisiana at Lafayette Nicholas P. Fruge, LADOTD District 3 Subasish Das, University of Louisiana
More informationDevelopment of Analytical Tools to Evaluate Road Departure Crashes Using Naturalistic Driving Study Data
Development of Analytical Tools to Evaluate Road Departure Crashes Using Naturalistic Driving Study Data Safety Research Symposium Strategic Highway Research Program 2 Transportation Research Board July
More informationHSM Tables, Case Studies, and Sample Problems Table of Contents
HSM Tables, Case Studies, and Sample Problems Table of Contents Chapter 10 Tables: HSM Default Tables Local Values (Michigan)... 1 Chapter 11 Tables: HSM Default Tables Local Values (Michigan)... 5 Chapter
More informationPotential Safety Effects of Lane Width and Shoulder Width on Two-Lane Rural State Highways in Idaho
RP 200 RESEARCH REPORT IDAHO TRANSPORTATION DEPARTMENT Potential Safety Effects of Lane Width and Shoulder Width on Two-Lane Rural State Highways in Idaho By Ahmed Abdel-Rahim Joseph Sonnen National Institute
More informationINFLUENCE OF TRAFFIC FLOW SEPARATION DEVICES ON ROAD SAFETY IN BRAZIL S MULTILANE HIGHWAYS
INFLUENCE OF TRAFFIC FLOW SEPARATION DEVICES ON ROAD SAFETY IN BRAZIL S MULTILANE HIGHWAYS Gabriel Andrade Lanzaro Universidade de Brasília Departamento de Engenharia Civil e Ambiental, Faculdade de Tecnologia,
More informationDOT HS September Crash Factors in Intersection-Related Crashes: An On-Scene Perspective
DOT HS 811 366 September 2010 Crash Factors in Intersection-Related Crashes: An On-Scene Perspective DISCLAIMER This publication is distributed by the U.S. Department of Transportation, National Highway
More informationToolbox of Countermeasures and Their Potential Effectiveness for Roadway Departure Crashes
Toolbox of Countermeasures and Their Potential Effectiveness for Roadway Departure Introduction This issue brief documents estimates of the crash reduction that might be expected if a specific countermeasure
More informationWhat Engineering Can Do for You! Low Cost Countermeasures for Transportation Safety
What Engineering Can Do for You! Low Cost Countermeasures for Transportation Safety Adam Larsen Safety Engineer Federal Highway Administration 360-619-7751 Adam.Larsen@DOT.GOV Adam Larsen TTP Safety Engineer
More informationAPPENDIX G Lane Departure Action Plan
APPENDIX G Introduction Lane Departure is one of nine emphasis areas of the North Carolina Strategic Highway Safety Plan. This emphasis area targets the following crashes: Ran Off Road Left Ran Off Road
More informationSystemic Safety. Doug Bish Traffic Services Engineer Oregon Department of Transportation March 2016
Systemic Safety Doug Bish Traffic Services Engineer Oregon Department of Transportation March 2016 Oregon averages 1700 fatal and serious injury crashes each year. Some of the more common crash types include:
More informationPedestrian Fatalities on Interstate Highways, United States, Saving lives through research and education.
Saving lives through research and education Pedestrian Fatalities on Interstate Highways, United States, 1993-2012 September 2014 607 14th Street, NW, Suite 201 Washington, DC 20005 AAAFoundation.org 202-638-5944
More informationDesigning for Pedestrians: An Engineering Symposium. Rutgers University March 21, 2013
Designing for Pedestrians: An Engineering Symposium Rutgers University March 21, 2013 The Problem 2 Pedestrian Fatalities Pedestrian Fatalities by Year in US (1994-2010) 6000 5000 4000 3000 2000 1000 0
More informationIragavarapu, Khazraee, Lord, Fitzpatrick PEDESTRIAN FATAL CRASHES ON FREEWAYS IN TEXAS
Iragavarapu, Khazraee, Lord, Fitzpatrick PEDESTRIAN FATAL CRASHES ON FREEWAYS IN TEXAS By Vichika Iragavarapu, P.E. (Corresponding author) Assistant Research Engineer Texas A&M Transportation Institute,
More informationPost impact trajectory of vehicles at rural intersections
Post impact trajectory of vehicles at rural intersections Doecke SD., Woolley JE. and Mackenzie JR. Centre for Automotive Safety Research Abstract This report describes the path of vehicles after a collision
More informationAn evaluation of intersection characteristics associated with crashes at intersections in Melbourne CBD. Jim Scully, Brian Fildes 1
An evaluation of intersection characteristics associated with crashes at intersections in Melbourne CBD Jim Scully, Brian Fildes 1 ABSTRACT The contribution of crashes occurring at intersections to road
More informationAcknowledgements. Mr. David Nicol 3/23/2012. Daniel Camacho, P.E. Highway Engineer Federal Highway Administration Puerto Rico Division
Daniel Camacho, P.E. Highway Engineer Federal Highway Administration Puerto Rico Division Acknowledgements Mr. David Nicol Director, FHWA Office of Safety FHWA Office of Safety http://safety.fhwa.dot.gov/provencountermeasures/
More informationMaine Department Of Transportation - Traffic Engineering, Crash Records Section Crash Summary Report Report Selections and Input Parameters
Maine Department Of Transportation - Traffic Engineering, Crash Records Section Crash Summary Report Report Selections and Input Parameters REPORT SELECTIONS Crash Summary I - Single Node REPORT DESCRIPTION
More informationRoadway Departure Crashes: How Can They Be Reduced?
Roadway Departure Crashes: How Can They Be Reduced? Roadway departure safety is a high priority in most state strategic highway safety plans. Several states also recognize that roadway departure crashes
More informationSafety Relationships Associated with Cross-Sectional Roadway Elements
TRANSPORTATION RESEARCH RECORD 1512 29 Safety Relationships Associated with Cross-Sectional Roadway Elements CHARLES V. ZEGEER AND FORREST M. COUNCIL This study was conducted to summarize the known relationships
More informationProven Safety Countermeasures. FHWA Office of Safety January 12, :00 p.m. to 2:00 p.m. Eastern Time
Proven Safety Countermeasures FHWA Office of Safety January 12, 2012 1:00 p.m. to 2:00 p.m. Eastern Time Introduction and Background While States should still be considering the application of all of the
More informationAccess Management in the Vicinity of Intersections
Access Management in the Vicinity of Intersections FHWA-SA-10-002 Technical Summary Photo: Ralph Bentley (used with permission) 0 Access Management is: The design, implementation and management of entry
More informationToolbox of Countermeasures and Their Potential Effectiveness to Make Intersections Safer
8 Toolbox of Countermeasures and Their to Make Intersections Safer Introduction Studies included in the NCHRP 17-18 (3), Guidance for Implementation of the AASHTO Strategic Highway Safety Plan, as well
More informationGeometric Design Tables
Design Manual Chapter 5 - Roadway Design 5C - Geometric Design Criteria 5C-1 Geometric Design Tables A. General The following sections present two sets of design criteria tables - Preferred Roadway Elements
More informationCTDOT Pedestrian and Bicycle Safety Initiatives
CTDOT Pedestrian and Bicycle Safety Initiatives 2017 Northeast Transportation Safety Conference Mark F. Carlino, P.E. Traffic Engineering Division Chief Bureau of Engineering and Construction Connecticut
More informationINDEX. Geometric Design Guide for Canadian Roads INDEX
Acceleration lane, see Lanes, Acceleration Access, 8.1 Access Management and Functional Classification 8.2 Access Management by Design Classification 8.3 Access Configuration 8.4 Building Set-Back Guidelines
More informationEngineering Your Community Safe
Engineering Your Community Safe Andi Bill Transportation Information Center thanks its partners for their support and assistance National Traffic Safety Goal Reasonable goal? Who s Involved? What can you
More informationCrash Patterns in Western Australia. Kidd B., Main Roads Western Australia Willett P., Traffic Research Services
Crash Patterns in Western Australia Kidd B., Main Roads Western Australia Willett P., Traffic Research Services Abstract Examination of crash patterns is one way of identifying key factors on which focus
More informationANALYSIS OF RURAL CURVE NEGOTIATION USING NATURALISTIC DRIVING DATA Nicole Oneyear and Shauna Hallmark
ANALYSIS OF RURAL CURVE NEGOTIATION USING NATURALISTIC DRIVING DATA Nicole Oneyear and Shauna Hallmark OUTLINE Background Objective Data Sources Site Selection Data Reduction Future work Benefits BACKGROUND
More informationAccident Relationships of Roadway Width on Low-Volume Roads
TRANSPORTATION RESEARCH RECORD 1445-1 - Zegeer, Stewart, Council, and Neuman Accident Relationships of Roadway Width on Low-Volume Roads CHARLES V ZEGEER, RICHARD STEWART, FORREST COUNCIL, AND TIMOTHY
More informationA Strategic Highway Safety Plan. a coordinated and informed approach to reducing highway fatalities and serious injuries on all public roads.
Introduction A Strategic Highway Safety Plan is a coordinated and informed approach to reducing highway fatalities and serious injuries on all public roads. A Strategic Highway Safety Plan is Based on
More information2012 TOWN OF CASTLE ROCK MOTOR VEHICLE ACCIDENT FACTS PREPARED BY THE PUBLIC WORKS DEPARTMENT
ATTACHMENT A 2012 TOWN OF CASTLE ROCK MOTOR VEHICLE ACCIDENT FACTS PREPARED BY THE PUBLIC WORKS DEPARTMENT ACKNOWLEDGEMENTS This report was assembled from data provided by the Castle Rock Police Department
More informationThe Effect of Pavement Marking on Speed. Reduction in Exclusive Motorcycle Lane. in Malaysia
Contemporary Engineering Sciences, Vol. 3, 2010, no. 3, 149-155 The Effect of Pavement Marking on Speed Reduction in Exclusive Motorcycle Lane in Malaysia Seyed Farzin Faezi PhD student in highway and
More informationTo Illuminate or Not to Illuminate: Roadway Lighting as It Affects Traffic Safety at Intersections
To Illuminate or Not to Illuminate: Roadway Lighting as It Affects Traffic Safety at Intersections Mark Rea Lighting Research Center Rensselaer Polytechnic Institute Eric Donnell Dept. of Civil and Environmental
More informationRecent U.S. Research on Safety Evaluation of Low-Cost Road Engineering Safety Countermeasures Lessons for Canada
Recent U.S. Research on Safety Evaluation of Low-Cost Road Engineering Safety Countermeasures Lessons for Canada Bhagwant Persaud Department of Civil Engineering, Ryerson University 350 Victoria Street,
More informationAnalysis of Run-Off-Road Crashes in Relation to Roadway Features and Driver Behavior
Analysis of Run-Off-Road Crashes in Relation to Roadway Features and Driver Behavior Ertan Örnek University of Wisconsin, Madison Traffic Operations Lab 141 NW Barstow Street Waukesha, WI 53187 ornek@wisc.edu
More informationEvaluation of Left-Turn Lane Offset Using the Naturalistic Driving Study Data
1 Hutton et al. 1 2 3 Evaluation of Left-Turn Lane Offset Using the Naturalistic Driving Study Data Jessica M. Hutton (Corresponding Author) Senior Traffic Engineer MRIGlobal 425 Volker Boulevard Kansas
More informationSpeed Management Action Plan
Speed Management Action Plan National Selection Criteria Criteria Description Fatalities The number of fatalities resulting from speeding-related crashes. Percentage Compares total fatalities in each State
More informationHot Spot Identification and Analysis Methodology
Brigham Young University BYU ScholarsArchive All Theses and Dissertations 2013-11-20 Hot Spot Identification and Analysis Methodology Jacob S. Farnsworth Brigham Young University - Provo Follow this and
More informationTransportation Research Forum
Transportation Research Forum Applying the Highway Safety Manual to Two-Lane Road Curves Author(s): Daniel Findley, Charles Zegeer, Carl Sundstrom, Joseph Hummer, and William Rasdorf Source: Journal of
More informationEffectiveness of Various Safety Improvements in Reducing Crashes on Wyoming Roadways
MPC 13-262 Zebulun Coulter and Khaled Ksaibati December 2013 Effectiveness of Various Safety Improvements in Reducing Crashes on Wyoming Roadways A University Transportation Center sponsored by the U.S.
More informationPatterning Demographic and Socioeconomic Characteristics Affecting Pedestrian and Bicycle Crash Frequency
1 1 1 1 1 1 1 1 0 1 0 1 0 1 Patterning Demographic and Socioeconomic Characteristics Affecting Pedestrian and Bicycle Crash Frequency *Deo Chimba, P.E., PTOE Assistant Professor Civil Engineering Department
More informationIDENTIFICATION OF CRASH CAUSAL FACTORS: EFFECTS OF SAMPLE DATA SIZE
IDENTIFICATION OF CRASH CAUSAL FACTORS: EFFECTS OF SAMPLE DATA SIZE Uday R. R. Manepalli Civil, Architectural and Environmental Engineering, Missouri University of Science & Technology Rolla, MO, USA,
More informationHR 20-7(332) User s Guide to Develop Highway Safety Manual Safety Performance Function Calibration Factors
National Cooperative Highway Research Program (NCHRP) HR 20-7(332) User s Guide to Develop Highway Safety Manual Safety Performance Function Calibration Factors Requested by: American Association of State
More informationTHE FUTURE OF THE TxDOT ROADWAY DESIGN MANUAL
THE FUTURE OF THE TXDOT ROADWAY DESIGN MANUAL Kenneth Mora, P.E. (Design Division) 10/10/2017 Table of contents 1 2 Reduction in FHWA design controlling criteria Innovative Intersection Guidance 3-7 8-42
More informationBicycle - Motor Vehicle Collisions on Controlled Access Highways in Arizona
Bicycle - Motor Vehicle Collisions on Controlled Access Highways in Arizona Analysis from January 1, 1991 to June 30, 2002 Richard C. Moeur, PE Traffic Design Manager, Northern Region Michelle N. Bina
More informationTEXAS TRAFFIC SAFETY TASK FORCE. Jeff Moseley Texas Transportation Commission
TEXAS TRAFFIC SAFETY TASK FORCE Jeff Moseley Texas Transportation Commission June 7, 2016 Fatalities and fatal crashes 2010 2015 4,000 3,500 3,417 3,407 3,536 3,533 3,000 3,061 3,067 2,782 2,803 3,037
More informationPhase I-II of the Minnesota Highway Safety Manual Calibration. 1. Scope of Calibration
TECHNICAL MEMORANDUM Phase I-II of the Minnesota Highway Safety Manual Calibration PREPARED FOR: PREPARED BY: Minnesota Department of Transportation Richard Storm, CH2M HILL Veronica Richfield, CH2M HILL
More informationForm DOT F (8-72) Technical Report Documentation Page. 1. Report No. FHWA/TX-05/ P1
1. Report No. FHWA/TX-05/0-4703-P1 4. Title and Subtitle ROADWAY SAFETY DESIGN SYNTHESIS 2. Government Accession No. 3. Recipient's Catalog No. Technical Report Documentation Page 5. Report Date May 2005
More informationGeometric designs for Safe Highways. Dr. Manoj M. Asst. Professor Department of Civil Engineering IIT Delhi
Geometric designs for Safe Highways Dr. Manoj M. Asst. Professor Department of Civil Engineering IIT Delhi WORKSHOP-CUM-TRAINING PROGRAMME ON ROAD SAFETY 17th 21st September 2018 Outline Introduction Cross
More informationArvada Traffic Engineering DiExSys Roadway Safety Systems Detailed Summary of Crashes Report
79983 Location: 7A Begin:.87 End:.9 From:// To:/3/ Severity PDO: 8 INJ: FAT: Number of Vehicles Location One Vehicle: 8 Two Vehicles: Three or More: On Road: 77 Off Road Left: 3 Off Road Right: Off Road
More informationTraffic Control and Accidents at Rural High-Speed Intersections
14 TRANSPORTATION RESEARCH RECORD 1160 Traffic Control and Accidents at Rural High-Speed Intersections KENNETH R. AGENT ln many Instances, when rural high-speed highways are constructed, there are a number
More informationRoadway Departure Focus State Initiative Roadside Safety Systems Inspection, Maintenance & Designers Mentoring Program
Roadway Departure Focus State Initiative Roadside Safety Systems Inspection, Maintenance & Designers Mentoring Program Why worry about the roadside? 18,586 deaths per year in the USA Annual U.S. Fatalities
More informationTechnical Report Documentation Page 2. Government Accession No. 3. Recipient's Catalog No. 1. Report No. FHWA/TX-11/
1. Report No. FHWA/TX-11/0-6031-1 4. Title and Subtitle ANALYSIS OF ROADWAY DEPARTURE CRASHES ON TWO- LANE RURAL ROADS IN TEXAS Technical Report Documentation Page 2. Government Accession No. 3. Recipient's
More informationChapter 6. Analysis of the framework with FARS Dataset
Chapter 6 Analysis of the framework with FARS Dataset. Having represented each phase of the structure with the aid of different data sets at each stage, to support the efficacy of the proposed framework
More informationInstitute of Transportation Engineers Safety Action Plan
I Institute of Transportation Engineers Safety Action Plan 1. Introduction 2. Intersection Crashes 3. Keep Vehicles on the Road 4. Minimize Consequences When Vehicles Leave the Road 5. School Crossing
More informationRelationships Between Operational and Safety Considerations in Geometric Design Improvements
TRANSPORTATION RESEARCH RECORD 1512 Relationships Between Operational and Safety Considerations in Geometric Design Improvements DOUGLAS W. HARWOOD Traffic operations have an important influence on safety.
More informationAt-Grade Intersections versus Grade-Separated Interchanges (An Economic Analysis of Several Bypasses)
Transportation Kentucky Transportation Center Research Report University of Kentucky Year 1975 At-Grade Intersections versus Grade-Separated Interchanges (An Economic Analysis of Several Bypasses) Kenneth
More informationPedestrian Accidents in Utah
TRANSPORTATION RESEARCH RECORD 1325 69 Pedestrian Accidents in Utah ERIC YUAN-CHIN CHENG The objectives are to investigate the trend of Utah's pedestrian accident rate and to analyze and discuss some of
More informationBUILDING CHINARAP. Zhang Tiejun Research Institute of Highway (RIOH) Beijing, China
BUILDING CHINARAP Zhang Tiejun Research Institute of Highway (RIOH) Beijing, China E-mail: tj.zhang@rioh.cn Greg Smith International Road Assessment Programme (irap) Beijing, China E-mail: greg.smith@irap.org
More informationREDUCING COLLISIONS AT HIGH CRASH LOCATIONS
REDUCING COLLISIONS AT HIGH CRASH LOCATIONS Presented by Nazir Lalani P.E. Traffex Engineers Inc. N_lalani@hotmail.com ACCIDENTS AND SAFETY Why is safety important? Safety components Who is responsible?
More informationAppendix A: Safety Assessment
Appendix A: Safety Assessment Safety Assessment Appendix A A Statement of Philosophy The efficient and responsible investment of resources in addressing safety problems is a difficult task. Since crashes
More informationRoad User Behaviour WP4
SafetyCube Safety CaUsation, Benefits and Efficiency Road User Behaviour WP4 Road user behaviour WP4 Contributing partners 1 Objectives Main objective of SafetyCube is to create a repository of estimates
More informationAn Overview of Traffic Records. April 15, 2016 John Riemer
An Overview of Traffic Records April 15, 2016 John Riemer What is traffic records? The traffic records office is required by state statue to maintain a database of motor vehicle crashes that occur on all
More informationFor Information Only. Pedestrian Collisions (2011 to 2015) Resolution. Presented: Monday, Apr 18, Report Date Tuesday, Apr 05, 2016
Presented To: Operations Committee For Information Only Pedestrian Collisions (0 to 0) Presented: Monday, Apr 8, 06 Report Date Tuesday, Apr 0, 06 Type: Correspondence for Information Only Resolution For
More informationNY Route 5 Comprehensive Pedestrian Safety Study: A Corridor Perspective CDTC Planning Committee. January 7, 2015
NY Route 5 Comprehensive Pedestrian Safety Study: A Corridor Perspective CDTC Planning Committee January 7, 2015 Project Objective Study Scope: Perform an analysis of pedestrian related accidents, An engineering
More informationMemorandum 1. INTRODUCTION. To: Cc: From: Denise Marshall Northumberland County
255 Adelaide Street West Toronto, ON M5H 1X9 www.hdrinc.com File: 4.0 Memorandum To: Cc: From: Denise Marshall Northumberland County Tony Reitmeier HDR Guinevere Ngau HDR Andrew O Connor HDR Date: August
More informationRoad Diets: Reconfiguring Streets for Multi-Modal Travel
Road Diets: Reconfiguring Streets for Multi-Modal Travel Tom Grant, P.E., PTOE What is a Road Diet? Reconfiguration of travel lanes to benefit all roadway users (i.e., Complete Street) Reclaiming the space
More informationMajor Contributing Factors
Major Contributing Factors Contents: Page Figure.1 Major Contributing Factors by Collision Severity 16.2 Major Contributing Factors in Collisions by Road System 19 Table.1 Alcohol, Speed and Distraction
More informationFigure 1: Graphical definitions of superelevation in terms for a two lane roadway.
Iowa Department of Transportation Office of Design Superelevation 2A-2 Design Manual Chapter 2 Alignments Originally Issued: 12-31-97 Revised: 12-10-10 Superelevation is the banking of the roadway along
More information