Benefits of Center Line Rumble Strips on Rural 2-Lane Highways in Louisiana
|
|
- Sophie Watson
- 5 years ago
- Views:
Transcription
1 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 26, 2018
2 Rumble Strips Rumble strips, also known as sleeper lines, alert strips, audible lines, wake up calls, growlers, drift lines, and drunk bumps 2
3 How CLRS Helps 3
4 Applications Typical shoulder rumble strip installation Midlane rumble strip concept Typical centerline rumble strip installation Typical transverse rumble strip installation 4
5 Types of Rumble Strips Milled, applied to existing hardened asphalt or concrete roads. Rolled, applied to newly laid asphalt pavement while it is still warm and moldable. Formed, a corrugated form is pressed into fresh concrete. Raised, fastened to asphalt or concrete pavement and often with a reflector built into the edge. 5
6 Milled, applied to existing hardened asphalt pavement 6
7 Design Dimensions Typical milled rumble strip widths are 5 to 7 inches (C) with 12-inch spacing (E) and approximately 0.5 inch depth (D). A typical length is 12 to 16 inches (B). 7
8 Easy Construction 8
9 Project Motivation Year Fatalities Per 100,000 Population Fatalities Per 100,000 Licensed Drivers Fatalities Per 100,000 Registered Vehicles Fatality Rate U.S. Louisiana U.S. Louisiana U.S. Louisiana U.S. Louisiana Change between 1994 and % -19% -34% -31% -44% -22% -38% -32% Destination Zero Deaths calls for all actions that can reduce traffic crashes (fatal, injury and PDO) 9
10 Rural 2-lane Centerline rumble strips (CLRS) Project About 20% of the fatal crashes were cross-centerline crashes (head-on + opposite direction sideswipe) on Louisiana rural two-lane highways. Since 2011, CLRS have been installed on 2,100 miles of rural two-lane highways in Louisiana. 10
11 Centerline Rumble Strips in Louisiana (rural 2-lane) Project District Length (mile) Construction Year(s) Total 2,
12 Data Collection and Verification CLRS from project list Verifying by GIS Verifying by Google map street view 12
13 Summary of Segments in Analysis District Length # of Control (mile) Sections Before Years After Years Total 1,
14 Crashes Before and After CLRS Installation Crashes Before After Percent Reduction Total crashes Crashes by severity 5,829 4, % Fatal % Injury 2,516 1, % PDO 3,172 2, % 14
15 Changes in Traffic Volume? AADT Before After Minimum Maximum 18,633 22,367 Mean 3,337 3,389 Crash Rate Before After Crashes per million miles traveled
16 Changes by Collision Type Manner of collision Before After Percent Reduction Non-collision 3,378 2, % Head on (117) 41.3% Rear end % Right angle % Left turn % Right turn % Sideswipe (same direction) % Sideswipe (opposite direction) % Others % Cross centerline crashes (Head on and Opposite direction sideswipe crashes) % 16
17 Comparison to the National Study NCHRP Study 2009 Louisiana Total Crashes 9% 15% Fatal and Injury (FI) Crashes 12% 31% (fatal), 22% (injury) Total Targeted Crashes 30% 37% FI Head On and Opposite Direction Sideswipe 45% 25% 17
18 Changes in Crashes by Time and Lighting Condition Time of the Day Before After 6am-12pm 1,398 (24.3%) 1,217 (24.6%) 12pm-6pm 1,962 (34.1%) 1,710 (34.6%) 6pm-12am 1,105 (19.2%) 958 (19.4%) 12am-6am 1,292 (22.4%) 1,054 (21.3%) Lighting Condition Before After Daylight Dark Dawn and Dusk 3,280 2,737 2,328 2,
19 Changes in Crashes by Single Vehicle, Driver condition, Alcohol and Pedestrian involvement 19
20 Safety Effectiveness Estimation with EB M w P ( 1 w ) K i i i i i EB estimate of the expected number of after crashes if countermeasures weren t implemented. Where, K i = total before crashes at site i; P= predicted crashes from SPF; w i = P i k ˆ i var( c ˆ i i M ) i c 2 i (1 w i ) M i Predicted after crashes and variance if countermeasure weren t implemented Where, Ratio of after and before SPF prediction, C i = σ y y=y 0i +1 E(k iy ൯ y=y 0i 1 = Q i E(k iy ൯ P i σ y= 1 ˆ ˆ( ˆ) ˆ[1 ˆ L vâr( ˆ 1 L 1 2 ˆ) ] vâr( ˆ) 2 ˆ vâr( ˆ) 2 ˆ Effectiveness of the countermeasure and its standard error Where, L = total observed crash counts during the after period 20
21 Crash Modification Factor (CMF) by Empirical Bayes Analysis Estimated CMF θ and standard Error 0.83 (0.016) % 17% 12% With certainly, CLTS reduces crashes and CMF could vary between 0.78 and 0.88, which means crash reduction between 12% and 28%) 21
22 Benefit vs. Cost Injury Type Observed Crash Reduction Crash Cost Safety Benefit Benefit Fatal 44 $1,710,561 $75,264,684 Severe 11 $489,446 $5,383,906 Moderate 196 $173,578 $34,021,288 Complaint 349 $58,636 $20,463,964 None 279 $24,982 $6,969,978 Total Benefit $142,103,820 Cost Unit cost Total Cost FHWA - low $500 $932,665 FHWA high $6,000 $11,191,980 Louisiana - low $700 $1,305,731 Louisiana - high (including traffic control devices, mobilization, raised pavement markers, and striping) $7,632 $14,233,774 22
23 Benefit Cost Ratio B/C FHWA - low 152 FHWA - high 13 Louisiana - low 109 Louisiana - high
24 CLRS on rural 2-lane highways Significantly reducing cross-over crashes Providing much needed reduction in fatal and injury crashes Being extremely cost effective 24
25 Center line rumble strips: an extremely efficient and cost effective crash countermeasure Roundabout Forgiving roadside for rural 2- lane highways Flatten small radius curves Urban complete street Raised Pavement markers RCUT Lane Conversion Pavement edgeline Center line rumble strip Shoulder rumble strip Chevron signs on sharp curves 25
26 Recommendations Considering CLRS for two-lane highways (state or local, rural or urban) where the cross-center line crash rate (total and/or FI) is higher than the state average. 26
27 More information on FHWA 27
28 Urgency for doing everything we can for crash Reduction
29 Questions? Thank you! 29
Crash 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 informationRecently Developed Intersection CMFs. Nancy Lefler, VHB ATSIP Traffic Records Forum, 2014
Recently Developed Intersection CMFs Nancy Lefler, VHB ATSIP Traffic Records Forum, 2014 Overview General Methodology Treatments Installation of traffic signals - with and without left-turn lanes (NCDOT)
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 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 informationFatal Head-On Crashes on. Rural Two-Lane Two-Way Highways in Minnesota
Fatal Head-On on Rural Two-Lane Two-Way Highways in Minnesota A Report Submitted to the Minnesota Department of Transportation By Derek Leuer, PE Office of Traffic, Safety, and Technology Minnesota Department
More informationPavement Markings to Reduce Lane Departure Crashes. Paul Carlson, PhD, PE Road Infrastructure Inc.
Pavement Markings to Reduce Lane Departure Crashes Paul Carlson, PhD, PE Road Infrastructure Inc. 1 6-inch Edge Lines 10 years ago Agencies liked the looks of wider edge lines but did not have evidence
More informationLessons Learned from the Minnesota County Road Safety Plans. Richard Storm CH2M HILL
Lessons Learned from the Minnesota County Road Safety Plans Richard Storm CH2M HILL May 21, 2014 Overview of the MN CRSP: Why Prepare Safety Plans for Local Systems? MAP-21: Requires states to address
More informationSafety at Unsignalized Intersections. Unsignalized Intersections
Safety at FHWA Safety Focus Areas 2 National Statistics 3 National Statistics There were 41,059 highway fatalities in 2007. Where did they occur? Non-Intersections 79% About half of all crashes and half
More informationHuman factors studies were simulator-based studies not transferable Safety impacts were not well understood
6-inch Edge Lines 10 years ago Agencies liked the looks of wider edge lines but did not have evidence to support broad implementation. Implemented mostly on Interstate and similar highways Limited operations-based
More informationNow Let s Think Systemic
Now Let s Think Systemic Remote Rural County Use of the Highway Safety Improvement Program TRINITY COUNTY DEPARTMENT OF TRANSPORTATION Richard Tippett Director MEET TRINITY COUNTY 3,208 square miles 13,786
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 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 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 informationRational road safety management Practice and Theory. Bhagwant Persaud Ryerson University Toronto, Canada
Rational road safety management Practice and Theory Bhagwant Persaud Ryerson University Toronto, Canada Overview Road infrastructure safety management process Evolution of road infrastructure safety management
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 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 informationLocal Road Safety Plans
An Introduction to Local Road Safety Plans June 21, 2018 Today s Presenter Jerry Roche, P.E. Safety Analysis Program Manager FHWA Office of Safety Ames, IA 2 NACE Do-It-Yourself LRSP Pilot Six states,
More informationSafety Effectiveness of Pedestrian Crossing Treatments
Portland State University PDXScholar TREC Friday Seminar Series Transportation Research and Education Center (TREC) 10-13-2017 Safety Effectiveness of Pedestrian Crossing Treatments Christopher Monsere
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 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 informationColorado Department of Transportation Crash Data Program Alisa Babler, PE
Colorado Department of Transportation Crash Data Program Alisa Babler, PE 2014 Colorado 115,388 Total Crashes 39,353 Injuries 488 Fatalities 489.85 100MVMT 88,258 Roadway Center Line Miles Media Question:
More informationPotential Factors Affecting Roadway Departure Crashes in Oahu, Hawaii
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
More informationEvaluation of Transverse Rumble Strips at Stop Controlled Intersections
Evaluation of Transverse Rumble Strips at Stop Controlled Intersections Raghavan Srinivasan Jongdae Baek Forrest Council UNC Highway Safety Research Center Why Evaluate this Treatment? Some studies have
More informationImplementing Strategies from Missouri s Blueprint for Safer Roadways Using System-wide Safety Solutions to Save Lives
Implementing Strategies from Missouri s Blueprint for Safer Roadways Using System-wide Safety Solutions to Save Lives John Schaefer Sr. Traffic Studies Specialist Missouri Department of Transportation
More informationHighway Safety Manual Lite Woodside, DE March 20 and 21, 2012
Highway Safety Manual Lite Woodside, DE March 20 and 21, 2012 Hillary Isebrands, PE and John McFadden, PE FHWA Resource Center Safety and Design Technical Service Team Some of the Questions We Will Answer
More informationEnhancing NDOT s Traffic Safety Programs
NDOT Research Report Report No. 339-12-803 Enhancing NDOT s Traffic Safety Programs October 2013 Nevada Department of Transportation 1263 South Stewart Street Carson City, NV 89712 Disclaimer This work
More informationGuidelines for Integrating Safety and Cost-Effectiveness into Resurfacing, Restoration, and Rehabilitation Projects
Guidelines for Integrating Safety and Cost-Effectiveness into Resurfacing, Restoration, and Rehabilitation Projects NCHRP Project 15-50 July 2017 1 Research Objective Develop guidelines for safe and cost-effective
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 informationGermanna Highway Route 3
Safety Assessment for Germanna Highway Route 3 (Two Lane section From: 0.30 miles west of Route 600 - west To: 0.21 miles east of 750) Total Distance: 4.62 miles Culpeper County Prepared by: VIRGINIA DEPARTMENT
More informationEvaluation of Interactive Highway Safety Design Model Crash Prediction Tools for Two-Lane Rural Roads on Kansas Department of Transportation Projects
Report No. K-TRAN: KU-10-1 FINAL REPORT November 2013 Evaluation of Interactive Highway Safety Design Model Crash Prediction Tools for Two-Lane Rural Roads on Kansas Department of Transportation Projects
More informationHighway Safety Improvement
Highway Safety Improvement Tracy Turpin, PE. Highway Safety Improvement Program Manager Virginia Department of Transportation Presented at Chesapeake and Virginia Chapters of ATSSA Meeting October 13 th,2016
More informationEngineering 101. Mark Vizecky State Aid Traffic Safety Engineer MnDOT. Vic Lund Traffic Engineer St. Louis County
Engineering 101 Mark Vizecky State Aid Traffic Safety Engineer MnDOT Vic Lund Traffic Engineer St. Louis County Trending Topics Enhanced Pavement Markings Rumble Strips and Stripes Rural Intersec:on Conflict
More information4/27/2016. Introduction
EVALUATING THE SAFETY EFFECTS OF INTERSECTION SAFETY DEVICES AND MOBILE PHOTO ENFORCEMENT AT THE CITY OF EDMONTON Karim El Basyouny PhD., Laura Contini M.Sc. & Ran Li, M.Sc. City of Edmonton Office of
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 informationENTUCKY RANSPORTATION C ENTER
Research Report KTC-00-13 T K ENTUCKY RANSPORTATION C ENTER College of Engineering A-A HIGHWAY SAFETY STUDY Our Mission We provide services to the transportation community through research, technology
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 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 informationPavement Markings (1 of 3)
Pavement Markings (1 of 3) DESCRIPTION AND DEFINITION Disadvantages Relatively high cost (over typical Crash reduction as yet unknown painted edge line) No tactile effect The STOP AHEAD pavement marking
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 informationIntroduction 4/28/ th International Conference on Urban Traffic Safety April 25-28, 2016 EDMONTON, ALBERTA, CANADA
4/28/2016 EVALUATING THE SAFETY EFFECTS OF INTERSECTION SAFETY DEVICES AND MOBILE PHOTO ENFORCEMENT AT THE CITY OF EDMONTON Karim El Basyouny PhD., Laura Contini M.Sc. & Ran Li, M.Sc. City of Edmonton
More informationJ-Turn An Intersection Safety Improvement Purdue Road School 2016 Tuesday, March 8, 2016 Brian Malone, INDOT & Josh Cook, HNTB
J-Turn An Intersection Safety Improvement Purdue Road School 2016 Tuesday, March 8, 2016 Brian Malone, INDOT & Josh Cook, HNTB US 231 and SR 62 and SR 68 US 231 and SR 62 Intersection Traffic Data Traffic
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 informationUS 20: CHESTER TO MONTANA SAFETY CORRIDOR PLAN
Idaho Transportation Department US 20: CHESTER TO MONTANA SAFETY CORRIDOR PLAN November 2016 Prepared for: Prepared by: Idaho Transportation Department, District 6 Kittelson & Associates, Inc. 206 N. Yellowstone
More informationSUCCESFUL HSIP APPLICATIONS CUUATS & CHAMPAIGN COUNTY
SUCCESFUL HSIP APPLICATIONS CUUATS & CHAMPAIGN COUNTY Traffic Engineering and Safety Conference October 15, 2014 CUUATS and Champaign County The Champaign-Urbana Urbanized Area Transportation Study (CUUATS)
More informationCollision Estimation and Cost Calculation
Collision Estimation and Cost Calculation Table of Contents Introduction... 3 Rates Based Method... 4 20-Year Collision Cost Procedure... 4 Safety Performance Function Method... 7 Important notes when
More informationdraft Benefit Cost Analysis Agassiz Rosedale Highway 9/Yale Road East Intersection Improvement Apex Engineering Limited Prepared for:
draft Benefit Cost Analysis Agassiz Rosedale Highway 9/Yale Road East Intersection Improvement Prepared for: BC Ministry of Transportation South Coast Region Prepared by: Apex Engineering 4299 West 14
More informationA Data-Driven Process for Prioritizing Highway Safety Investments in Idaho
0 0 A Data-Driven Process for Prioritizing Highway Safety Investments in Idaho Submission Date: November, 0 Number of Words in Text: Number of Figures, Tables & Photographs: Total Word Count: William R.
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 informationHSM PREDICTIVE METHODS IN PRELIMINARY ENGINEERING
HSM PREDICTIVE METHODS IN PRELIMINARY ENGINEERING 2017 ILLINOIS THE CONFERENCE Filiberto Sotelo & Steven Schilke, P.E. OUTLINE Safety & Transportation Management Process What is HSM? Illinois HSM Predictive
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 informationROADSIDE DELINEATION AND SAFETY SYSTEMS
ROADSIDE DELINEATION AND SAFETY SYSTEMS Presented by Nazir Lalani P.E. Traffex Engineers Inc. N_lalani@hotmail.com RELATIONSHIP OF ELEMENTS Roadway 34% 3 % 27% 57 % Driver 93% 1 % 3 % 6 % 2 % Source: FHWA
More informationEffects of Traffic Signal Retiming on Safety. Peter J. Yauch, P.E., PTOE Program Manager, TSM&O Albeck Gerken, Inc.
Effects of Traffic Signal Retiming on Safety Peter J. Yauch, P.E., PTOE Program Manager, TSM&O Albeck Gerken, Inc. Introduction It has long been recognized that traffic signal timing can have an impact
More informationRoad Safety Assessments. Lt. Bob McCurdy Williamson County Sheriff s s Office Marion, IL.
Road Safety Assessments Lt. Bob McCurdy Williamson County Sheriff s s Office Marion, IL. Why Are We Here? 2005 US Traffic Fatalities = 43,443 1429 4329 1361 1616 1534 3504 1729 3543 Illinois Annual Fatallities
More informationEconomic feasibility of safety improvements on low-volume roads
Economic feasibility of safety improvements on low-volume roads Authors: Ahmed Al-Kaisy, Levi Ewan, and Fahmid Hossain This is an Accepted Manuscript of an article published in Journal of Transportation
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 B. Safety Performance Report
Appendix B Safety Performance Report Appendix B 100 Consilium Place, Suite 200, Toronto, ON., M1H 3E3, Canada, www.timcon-eng.com Tel: 647-714-8403 Fax: 416 915 3910 Memorandum Date: (Updated) To: David
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 informationProven Practices. Improving Road Safety in Your County
Proven Practices Improving Road Safety in Your County ZERO is not an impossible goal. It will take ALL OF US to get there. The sum of all our efforts is ZERO. 60% of Fatalities Occur on Locally Owned
More informationTruck Climbing Lane Traffic Justification Report
ROUTE 7 (HARRY BYRD HIGHWAY) WESTBOUND FROM WEST MARKET STREET TO ROUTE 9 (CHARLES TOWN PIKE) Truck Climbing Lane Traffic Justification Report Project No. 6007-053-133, P 101 Ι UPC No. 58599 Prepared by:
More informationDesktop Reference for Crash Reduction Factors
Page 68 Desktop Reference for Crash Reduction Factors Report No. FHWA-SA-07-015 U.S. Department of Transportation Federal Highway Administration September 2007 Page 69 THIS PAGE LEFT INTENTIONALLY BLANK
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 informationResearch Report for ALDOT Project A STUDY OF THE EFFECTS OF PAVEMENT WIDENING, RUMBLE STRIPS, AND RUMBLE STRIPES ON RURAL HIGHWAYS IN ALABAMA
Research Report for ALDOT Project 930-827 A STUDY OF THE EFFECTS OF PAVEMENT WIDENING, RUMBLE STRIPS, AND RUMBLE STRIPES ON RURAL HIGHWAYS IN ALABAMA Prepared by Rod E. Turochy Luana Ozelim Prepared for
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 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 informationFHWA Safety Performance for Intersection Control Evaluation (SPICE) Tool
FHWA Safety Performance for Intersection Control Evaluation (SPICE) Tool Virginia Section ITE Annual Meeting Virginia Beach June 217 Pete Jenior Kittelson & Associates, Inc. 1 Intersection Control Evaluation
More informationTitle. Authors. Safety Benefits of Highway Infrastructure Investments (May 2017)
Title Safety Benefits of Highway Infrastructure Investments (May 2017) Authors Douglas W. Harwood 1, Jessica M. Hutton 1, Zachary N. Hans 2, Reginald R. Souleyrette 3, Michael A. Fields 3 1MRIGlobal 2Iowa
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 informationRoad Safety Assessment
Road Safety Assessment Incorporating Human Factors 66 th Illinois Traffic Engineering Safety Conference October 18, 2017 1 Definition of Human Factors IT S US Drivers Ability and Limitations to (1)Detect,
More informationCharacteristics of Fatal Pedestrian Crashes on Freeways. Kay Fitzpatrick Texas A&M Transportation Institute
Characteristics of Fatal Pedestrian Crashes on Freeways Kay Fitzpatrick Texas A&M Transportation Institute Transportation Short Course Design Session October 15, 2013 Project Background (0-6702) Motivation:
More informationVDOT Crash Analysis Procedures for Roadway Safety Assessments
Crash analysis is a critical component of road safety analysis. The crash analysis procedures defined in this document will help: Identify where to target resources for detailed crash analysis Assess the
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 informationTexas Intersection Safety Implementation Plan Workshop JUNE 2, 2016
Texas Intersection Safety Implementation Plan Workshop JUNE 2, 2016 Why Intersection Safety? A small part of overall highway system, but Each year roughly 50% of all crashes estimated 3 million involve
More informationDriveway Design Criteria
Design Manual Chapter 5 - Roadway Design 5L - Access Management 5L-4 Driveway Design Criteria A. General For efficient and safe operations, access drives and minor public street intersections can be improved
More informationSafety Data Resources. Multi-Discipline Safety Planning Forum March 10 & 11, 2008 Gateway Center
Safety Data Resources Multi-Discipline Safety Planning Forum March 10 & 11, 2008 Gateway Center Tom McDonald, PE Safety Circuit Rider Iowa LTAP Jack Latterell,, PE Safety Consultant FHWA Safety Engineer,
More informationCENTRAL ARIZONA GOVERNMENTS STRATEGIC TRANSPORTATION SAFETY PLAN SAFETY REVIEW MEMORANDUM
CENTRAL ARIZONA GOVERNMENTS STRATEGIC SAFETY REVIEW MEMORANDUM September 15, 2016 i Table of Contents Introduction... 1 Intersection 1: US 60 at Radanovich at Globe Food Mart... 2 Intersection 2: State
More informationClosing Plenary Session
TRAFFIC SAFETY CONFERENCE Closing Plenary Session June 9, 2017 Las Colinas, TX Order of Report Out June 9, 2017 Las Colinas, TX Distracted Driving Prioritized Countermeasures Countermeasure 4a Systemically
More informationEvaluation of Safety Effectiveness of Composite Shoulders, Wide Unpaved Shoulders, and Wide Paved Shoulders in Kansas
Report No. K-TRAN: KU-11-1 FINAL REPORT March 2013 Evaluation of Safety Effectiveness of Composite Shoulders, Wide Unpaved Shoulders, and Wide Paved Shoulders in Kansas Huanghui Zeng Steven D. Schrock,
More informationHSM Practitioners Guide to Urban and Suburban Streets. Prediction of Crash Frequency for Suburban/Urban Streets
HSM Practitioners Guide to Urban and Suburban Streets Prediction of Crash Frequency for Suburban/Urban Streets Predicting Crash Frequency of Suburban/Urban Multilane Streets Learning Outcomes: Describe
More informationHIGHWAY SAFETY MANUAL USER GUIDE
HIGHWAY SAFETY MANUAL USER GUIDE National Cooperative Highway Research Program 17-50 Lead States Initiative for Implementing the Highway Safety Manual Highway Safety Manual User Guide National Cooperative
More informationFARS Data 4/18/2013. o In many states, Native Americans are three times over represented in fatal crashes. 2004, 585 Native American Fatalities
Adam Larsen Federal Highway Administration Adam.Larsen@Dot.gov 360-619-7751 Safety Safety History History o In many states, Native Americans are three times over represented in fatal crashes WASHINGTON
More informationMN 5 Corridor Performance. Current Corridor Characteristics Highway: MN AADT: 2,400 73,000
Corridor Context The corridor runs from Norwood Young America to the connection with US 212 in Eden Prairie. The corridor serves the communities of Chanhassen, Eden Prairie, Norwood Young America, Victoria,
More informationTRANSPORTATION CRASH ANALYSIS AND COUNTERMEASURE IDENTIFICATION. Developed for: Lawrence - Douglas County Metropolitan Planning Organization
TRANSPORTATION CRASH ANALYSIS AND COUNTERMEASURE IDENTIFICATION Developed for: Lawrence - Douglas y Metropolitan Planning Organization Prepared by: CFS Engineers Approved by the MPO Policy Board: May 17,
More informationNCHRP Improved Prediction Models for Crash Types and Crash Severities. Raghavan Srinivasan UNC Highway Safety Research Center
1 NCHRP 17-62 Improved Prediction Models for Crash Types and Crash Severities Raghavan Srinivasan UNC Highway Safety Research Center 2 The Project Team University of Connecticut Persaud & Lyon, Inc. University
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 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 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 informationDEPARTMENT OF ENVIRONMENTAL SERVICES. North Harrison Street (Lee Highway to Little Falls Road) Comparative Analysis. Prepared for:
DEPARTMENT OF ENVIRONMENTAL SERVICES North Harrison Street (Lee Highway to Little Falls Road) Comparative Analysis Prepared for: Arlington County Department of Environmental Services 2100 Clarendon Boulevard,
More informationIdaho Driver Education and Training
Idaho Driver Education and Training Strategies for Controlled Access Highways Part I M13-1 Introduction to Controlled Access Highways Plans for the Interstate System," began in the late 1930s The system
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 informationAppendix A Literature Review
Appendix A Literature Review Appendix A Literature Review... 1 List of Tables and Figures... 3 Chapter 1: Executive Summary... 4 1.1 Scope and Organization of the Literature Review... 4 1.2 Findings from
More informationSponsored by the Office of Traffic and Safety of the Iowa Department of Transportation NOVEMBER 2001 CTRE
PAVED SHOULDERS ON PRIMARY HIGHWAYS IN IOWA: AN ANALYSIS OF SHOULDER SURFACING CRITERIA, COSTS, AND BENEFITS EXECUTIVE SUMMARY Sponsored by the Office of Traffic and Safety of the Iowa Department of Transportation
More informationAppendix A: Before-and-After Crash Analysis of a Section of Apalachee Parkway
Appendix A: Before-and-After Crash Analysis of a Section of Apalachee Parkway 3 Safety Impacts of Median Conversion: A Case Study on Apalachee Parkway 1. Introduction (Prepared by FIU, 11/10/2011) The
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 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 informationSAFETY EVALUATION OF RED-LIGHT INDICATOR LIGHTS (RLILS) IN FLORIDA
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 SAFETY EVALUATION OF RED-LIGHT INDICATOR LIGHTS (RLILS) IN FLORIDA Scott Himes, corresponding
More informationCHAPTER 1 STANDARD PRACTICES
CHAPTER 1 STANDARD PRACTICES OBJECTIVES 1) Functions and Limitations 2) Standardization of Application 3) Materials 4) Colors 5) Widths and Patterns of Longitudinal Pavement Marking Lines 6) General Principles
More informationWhere Did the Road Go? The Straight and Narrow about Curves
Where Did the Road Go? The Straight and Narrow about Curves Renae Kuehl, SRF Consulting Group October 23, 2018 What is a County Roadway Safety Plan or CRSP?" CRSP Identifies priority location-specific
More informationSR 53 Corridor Study. Final Report Presentation. Friday, October 3, :00 AM to noon
SR 53 Corridor Study Final Report Presentation Friday, October 3, 2014 10:00 AM to noon SR 53 Corridor Study Final Report Presentation Study Purpose: Investigate safety improvements along the SR 53 corridor
More informationIntegrating Safety into the Transportation Decision Making Process
Wednesday, February 17th, 2016 Integrating Safety into the Transportation Decision Making Process Priscilla Tobias, PE State Safety Engineer Illinois Department of Transportation Increased Focus of Safety
More informationThe Impact of Narrow Lane on Safety of the Arterial Roads. Hyeonsup Lim
The Impact of Narrow Lane on Safety of the Arterial Roads Hyeonsup Lim What do we know about Narrow Lane? AASHTO Green book, lane widths may vary from 10 to 12 feet for rural and urban arterials. NCHRP
More information