Roundabouts at Interchanges and High Speed Approaches
|
|
- Clarence Carroll
- 6 years ago
- Views:
Transcription
1 Roundabouts at Interchanges and High Speed Approaches Jay VonAhsen, P.E. GHD, the home of Ourston Roundabout Engineering roundaboutresources.org TexITE Meeting Fort Worth, September 23,
2 Roundabout Interchange Ramp Terminal Types Types of Roundabout Terminals: Raindrop Columbus, NC 2
3 Roundabout Interchange Ramp Terminal Types Types of Roundabout Terminals: Raindrop Single-circle (two bridges) diamond interchange Newton, KS 3
4 Roundabout Interchange Ramp Terminal Types Types of Roundabout Terminals: Raindrop Single-circle (two bridges) diamond interchange Dual roundabouts -the most common choice for interchange locations British Columbia 4
5 Roundabout Interchange Ramp Terminals 5
6 Interchange Ramp Terminals Incorporating Service Roads 6 Vail, CO
7 Roundabout Interchange Ramp Terminals Oshkosh, WI 7
8 Roundabout Interchange Ramp Terminals New Waverly, TX 8
9 Roundabout Interchange Ramp Terminals Link to Video 9
10 Roundabout Interchange Ramp Terminals 10
11 Roundabout Interchange Ramp Terminals Fort Worth, TX 11
12 Roundabout Interchange Ramp Terminals Austin, TX Image Source: 12
13 Why Roundabout Interchange Ramp Terminals? 1. Reduce the TxDOT traffic signal maintenance burden - Rural communities under 50k population 2. Performance -Reduce peak & off-peak delay (air quality ) - Researched safety improvement (FHWA) - U-turns possible along divided corridors - Can eliminate sight distance issues - Lessen ramp queue length - Meter traffic to on-ramp merging to freeway 3. Constr cost savings - Bridge width/length reduced 13
14 Image Source: 0f/35/77/0f357715d25 af368ecf07c06ac481 08a.jpg 14
15 High Speed Approaches Dodgeville, WI 15 Elongated splitter islands, curbing, lighting, and advanced signing can greatly improve safety at high speed approaches by alerting drivers to a changed traffic condition ahead.
16 Approach Design The primary safety concern in high-speed context is clarity of the driving situation (i.e. comfortable deceleration) Provide the desirable stopping sight distance of the entry point based on approach operating speed. Align approach roadways and set vertical profiles to make the central island visible. Extend splitter islands upstream of the yield line to start of deceleration -a minimum length of 200 feet is recommended. 16
17 Speed Transition 50 mph 30mph 17
18 Offset Left Design Preferred for Rural Conditions 18 18
19 Offset Left Design for Multilane Approaches 19
20 Carefully Applied Curvature Designer: attend to Information Handling Zones 20 20
21 21
22 Use of Successive Curves on High Speed Approaches Photo source: WSDOT 22
23 Inflected Approach Curves 23
24 Superelevation = wrong message + no forward sight distance Where did the pavement surface go? 50mph 24
25 Which entry design serves the driver best? 25
26 Approach Perspective Note: Preserve forward sight - too much chicane can lead to SMV crashes 26
27 Questions? Jay VonAhsen, P.E. GHD, the home of Ourston Roundabout Engineering roundaboutresources.org TexITE Meeting Fort Worth, September 23,
500 Interchange Design
500 Interchange Design Table of Contents 501 Interchange Design... 5-1 July 2015 501.1 General... 5-1 501.2 Interchange Type... 5-1 501.2.1 General... 5-1 502 Interchange Design Considerations... 5-2 502.1
More informationCHAPTER 4 GRADE SEPARATIONS AND INTERCHANGES
CHAPTER 4 GRADE SEPARATIONS AND INTERCHANGES 4.0 INTRODUCTION The ability to accommodate high volumes of intersecting traffic safely and efficiently through the arrangement of one or more interconnecting
More information500 Interchange Design
500 Interchange Design Table of Contents 501 Interchange Design... 1 501.1 General... 1 501.2 Interchange Type... 1 501.2.1 General... 1 502 Interchange Design Considerations... 2 502.1 Determination of
More informationLOCATION AND DESIGN DIVISION
VIRGINIA DEPARTMENT OF TRANSPORTATION LOCATION AND DESIGN DIVISION INSTRUCTIONAL AND INFORMATIONAL MEMORANDUM GENERAL SUBJECT: Design Exceptions / Waivers SPECIFIC SUBJECT: Design Exception Request Form
More informationPerformance Based Practical Design (PBPD)
Performance Based Practical Design (PBPD) 2016 ODOT D08 LPA Day John R. Kasich, Ohio Governor Jerry Wray, ODOT Director PBPD PBPD Presenter Katherine DeStefano, P. E. District 08 Design Engineer ODOT D08
More informationFOR INTERSTATE 81 AND ROUTE 37 INTERCHANGE FREDERICK COUNTY, VIRGINIA MILEPOST 310
INTERCHANGE MODIFICATION REPORT FOR INTERSTATE 81 AND ROUTE 37 INTERCHANGE FREDERICK COUNTY, VIRGINIA MILEPOST 310 PREPARED BY: VIRGINIA DEPARTMENT OF TRANSPORTATION STAUNTON DISTRICT DECEMBER 13, 2006
More informationI-17 and Happy Valley Road Diverging Diamond Interchange (DDI)
I-17 and Happy Valley Road Diverging Diamond Interchange (DDI) Bharat Kandel (ADOT) and Jeremy Neuman (HDR) February 28, 2018 Project Purpose and Overview New interchange will accommodate current and future
More informationConclusions & Lessons Learned
What is a DDI Recommended Practices Traffic Operations Analysis Geometric Design FHWA Review Conclusions & Lessons Learned It s not about you, it s about the public Developed by Access Utah County
More informationChapter GRADE SEPARATIONS & INTERCHANGES
Chapter 9 GRADE SEPARATIONS & INTERCHANGES 2012 ODOT Highway Design Manual Grade Separations And Interchanges 9.1 GENERAL INFORMATION There are three types of roadway intersections: intersections at-grade,
More informationUS 14 EIS (New Ulm to N. Mankato) Interchange and Intersection Type Comparison
T E C H N I C A L M E M O R A N D U M US 14 EIS (New Ulm to N. Mankato) Interchange and Intersection Type Comparison PREPARED FOR: Mn/DOT District 7 PREPARED BY: CH2M HILL DATE: March 27, 2007 This technical
More informationI-64 Peninsula Shoulder Usage Evaluation. Eric Stringfield VDOT Hampton Roads Transportation Planning April 3, 2013
I-64 Peninsula Shoulder Usage Evaluation Eric Stringfield VDOT Hampton Roads Transportation Planning April 3, 2013 Briefing Purpose Evaluation Area / Existing Conditions Code and Policy Engineering Facts
More informationPERFORMANCE BASED PRACTICAL DESIGN
PERFORMANCE BASED PRACTICAL DESIGN DOT S FACE INCREASING CHALLENGES ENGINEERING CULTURE We learned from those who taught us how and why we follow the standards There are valid reasons that tell us we now
More informationDiverging Diamond Interchanges in Michigan
2015 MDOT / ACEC Partnering Workshop Diverging Diamond Interchanges in Michigan Lori Swanson MDOT Oakland TSC John Katers OHM Advisors Chris Van Norwick MDOT Grand Region Rob Leppala TranSystems Topics
More informationTRANSPORTATION RESEARCH BOARD. Design of Interchange Loop Ramps and Pavement/ Shoulder Cross-Slope Breaks. Monday, November 13, :00-3:30PM ET
TRANSPORTATION RESEARCH BOARD Design of Interchange Loop Ramps and Pavement/ Shoulder Cross-Slope Breaks Monday, November 13, 2017 2:00-3:30PM ET The Transportation Research Board has met the standards
More informationI-35/I-80/Iowa 141 Interchange IJR and NEPA A Practical Approach to Resolving a Decades-Old Traffic Operations Challenge
I-35/I-80/Iowa 141 Interchange IJR and NEPA A Practical Approach to Resolving a Decades-Old Traffic Operations Challenge Client: AJR or IJR? This is a TO-MAY-TO This is a TO-MAH-TO Practical Design PRACTICAL
More informationDRAFT. SR-60 7 th Avenue Intersection Control Evaluation (ICE) I-605 Corridor Improvement Project (CIP) I-605/SR-60 EA# 3101U0
SR-60 7 th Avenue Intersection Control Evaluation (ICE) I-605/SR-60 EA# 3101U0 October 9, 2017 Contents 1 Purpose of ICE Memo... 1 2 Background... 1 3 Existing Interchange Deficiencies... 1 4 Context Sensitive
More informationSection 3-01 General Concepts, Design Standards and Design Exceptions TABLE OF CONTENTS
Section 3-01 General Concepts, Design Standards and Design Exceptions TABLE OF CONTENTS GENERAL CONCEPTS...2 General...2 Design Vehicle...2 Driver Expectancy...2 Design Speed...2 Sight Distances...3 Exhibit
More informationGeometric Design: Past, Present, and Future
A2A02: Committee on Geometric Design Chairman: Daniel B. Fambro Geometric Design: Past, Present, and Future DANIEL B. FAMBRO, Texas A&M University JOHN C. COLLINGS, Delcan Corporation ROBERT DELLA VEDOVA,
More informationINTERCHANGE SAFETY. Steve Allen. Houston Daugherty. Director, Strategic Transportation Investments Division (TDOT)
INTERCHANGE SAFETY Steve Allen Director, Strategic Transportation Investments Division (TDOT) Houston Daugherty Director of Transportation & Traffic (Cannon & Cannon Inc.) 2014 TSITE Summer Meeting August
More informationData-Driven Safety Analysis (DDSA) Implementing Safety Innovations Every Day Counts 3
Data-Driven Safety Analysis (DDSA) Implementing Safety Innovations Every Day Counts 3 Efficiency through technology and collaboration DDSA Presentation Overview Systemic Approach Overview Predictive Approach
More informationRamp Reversal Research. Roy Parikh, P.E. TxDOT Fort Worth District
2007 WINTER TEXITE MEETING FEBRUARY 3,2007 Ramp Reversal Research Roy Parikh, P.E. TxDOT Fort Worth District Research Project 0-5105 RMC 4 Traffic Operations Project title Development of Guidelines for
More informationWELCOME. Public Meeting for I-35 / I-44 Interchange. October 6, 2015
WELCOME Public Meeting for I-35 / I-44 Interchange October 6, 2015 TEAM INTRODUCTIONS PURPOSE OF THIS MEETING is to present the alternative alignments for the I-35/I-44 and I-35/NE 63rd Street Interchanges
More informationDesign of rural and urban roads contributes a lot towards safety of users. Identify some low-cost
COST EFFECTIVE DESIGNS TO IMPROVE HIGHWAY SAFETY Author: Brent T Allman, E.I.T. Construction Engineering Arizona State University Responding to the following Topic: Design of rural and urban roads contributes
More informationThe Folded Interchange: An Unconventional Design for the Reconstruction of Cloverleaf Interchanges
The Folded Interchange: An Unconventional Design for the Reconstruction of Cloverleaf Interchanges I. ABSTRACT Keith A. Riniker, PE, PTOE This paper presents the Folded Interchange design and compares
More informationGEOMETRIC DESIGN CRITERIA for Non-freeway Resurfacing, Restoration, and Rehabilitation Projects
GEOMETRIC DESIGN CRITERIA for Non-freeway Resurfacing, Restoration, and Rehabilitation Projects SEPTEMBER 1989 Arkansas State Highway and Transportation Department GEOMETRIC DESIGN CRITERIA for Non-freeway
More informationPROJECT STUDY REPORT. Cal Poly Pomona Senior Project
06/2014 PROJECT STUDY REPORT (Cal Poly Pomona Senior Project) For Conceptual Approval of an Interchange Improvement And Cooperative Agreement with The City of Lake Elsinore for completion of Project Approval
More informationChapter URBAN & RURAL FREEWAY DESIGN
Chapter 5 URBAN & RURAL FREEWAY DESIGN 5.1 INTRODUCTION This chapter provides standards and guidance for urban and rural freeways on new construction/reconstruction projects. The chapter also provides
More informationThe New Highway Capacity Manual 6 th Edition It s Not Your Father s HCM
The New Highway Capacity Manual 6 th Edition It s Not Your Father s HCM Tom Creasey, PE, PhD Principal, Stantec Consulting Services Inc. Chair, TRB Highway Capacity and Quality of Service Committee Presented
More informationActive Traffic Management in Michigan. Patrick Johnson, P.E. HNTB Michigan Inc.
Active Traffic Management in Michigan Patrick Johnson, P.E. HNTB Michigan Inc. Active Traffic Management (ATM) Active Traffic Management Strategies: Dynamic Lane Use Dynamic Shoulder Use Queue Warning
More information100 Design Controls and Exceptions
100 Design Controls and Exceptions Table of Contents 100 Introduction... 1 101 Functional Classification... 1 101.1 General... 1 101.2 Urban & Rural... 1 101.3 Classification Used In ODOT Design Criteria...
More informationPerformance Based Practical Design. An FHWA Perspective
Performance Based Practical Design An FHWA Perspective Early Adopters Research on PBPD and Background Materials http://www.fhwa.dot.gov/design/pbpd/ FAST Act Changes that Encourage PBPD On the NHS, design
More informationArizona DOT Transportation Systems Management and Operations (TSM&O)
Arizona DOT Transportation Systems Management and Operations (TSM&O) Jim Windsor, PE TSM&O Deputy State Engineer Timothy Tait, Ed.D Communications Director Arizona Department of Transportation April 11,
More informationWelcome!! Temporary Traffic Control During Maintenance and Short Duration Activities. Training Course 1-1
Welcome!! Temporary Traffic Control During Maintenance and Short Duration Activities Training Course 1-1 About This Course This material is based upon work supported by the Federal Highway Administration
More informationITS and Work Zones. ARTBA Work Zone Conference November Tracy Scriba FHWA Office of Operations Work Zone Team
ITS and Work Zones ARTBA Work Zone Conference November 2004 Tracy Scriba FHWA Office of Operations Work Zone Team Presentation Outline What is Work Zone ITS? Why Use It? Examples of Applications FHWA WZ
More informationTechnical Report Documentation Page 2. Government Accession No. 3. Recipient s Catalog No. 1. Report No. FHWA/TX-04/4128-2
1. Report No. FHWA/TX-04/4128-2 4. Title and Subtitle COUNTERMEASURES FOR WRONG-WAY MOVEMENT ON FREEWAYS: GUIDELINES AND RECOMMENDED PRACTICES 7. Author(s) Scott A. Cooner, A. Scott Cothron, and Steven
More informationA Unique Application of Railroad Preemption with Queue Mitigation at a Roundabout Interchange
A Unique Application of Railroad Preemption with Queue Mitigation at a Roundabout Interchange Jeromy Grenard, PE, PTOE American Structurepoint Hardik Shah, PE, PTOE American Structurepoint Roundabouts
More informationTRANSPORTATION SYSTEMS MANAGEMENT & OPERATIONS (TSMO)
TRANSPORTATION SYSTEMS MANAGEMENT & OPERATIONS (TSMO) Statewide Strategic Plan Texas Association of Metropolitan Planning Organization (TEMPO) Meeting March 2, 2018 Today s Speakers Marco Cameron, P.E,
More informationThe I-35 Connected Work Zone. Robert E. Brydia, PMP Senior Research Scientist
The I-35 Connected Work Zone Robert E. Brydia, PMP Senior Research Scientist r-brydia@tti.tamu.edu 979.845.8140 National Freight Corridors Freight corridors move +$16T goods annually +14B tons of freight
More informationInteractive Highway Safety Design Model (IHSDM) Traffic Records Forum Biloxi, MS October 28,
Interactive Highway Safety Design Model (IHSDM) Traffic Records Forum Biloxi, MS October 28, 2012 1 Agenda Welcome and Introductions IHSDM A Quantitative Approach to Evaluating Highway Safety IHSDM Workflow
More informationPolicy Research CENTER
TRANSPORTATION Policy Research CENTER New Approaches to Transportation Management (Task 1) Congestion continues to be a challenge in Texas and throughout the United States, and it is increasing, leading
More information11. Contract or Grant No. Austin, TX
Technical Report Documentation Page 1. Report No. 2. Government Accession No. 3. Recipient's Catalog No. FHW AffX-99/1468-S 4. Title and Subtitle 5. Report Date INTEGRA TED ARTERIAL AND FREEWAY OPERATION
More informationCommunity Conversations for the I-35 Ramp Metering Project Begin This Month
PRESS RELEASE FOR IMMEDIATE RELEASE September 18, 2015 For more information, contact: Michele Compton, KC Scout Senior Communications Specialist 816-607-2027 michele.compton@modot.mo.gov Community Conversations
More informationI-69 Angelina and Nacogdoches Counties Scoping Study Executive Summary
I-69 Angelina and Nacogdoches Counties Scoping Study Executive Summary November 2013 The Texas Department of Transportation (TxDOT) is working to find the most appropriate means to develop the Interstate
More informationAutomating Variable Speeds and Traveler Information with Real-Time Traffic and Weather
Automating Variable Speeds and Traveler Information with Real-Time Traffic and Weather Joshua Crain, Jim Peters, P.E., PTOE, and Carl S. Olson ABSTRACT The Highway 217 freeway in Portland, Oregon was the
More information2018 ACEC OF FLORIDA FICE OUTSTANDING PROJECT AWARDS (OPA) PROGRAM PROJECT NOMINATION FORM
2018 ACEC OF FLORIDA FICE OUTSTANDING PROJECT AWARDS (OPA) PROGRAM PROJECT NOMINATION FORM A. District: 1 2 3 4 5 6 7 TPK C.O. B. Nomination Category: (Select only one category) Outstanding Major Project
More informationRECOMMENDED RAMP DESIGN PROCEDURES FOR FACILITIES WITHOUT FRONTAGE ROADS
1. Report No. FHWA/TX-05/0-4538-3 4. Title and Subtitle RECOMMENDED RAMP DESIGN PROCEDURES FOR FACILITIES WITHOUT FRONTAGE ROADS 2. Government Accession No. 3. Recipient's Catalog No. 5. Report Date September
More informationExit 73 I-29 Interchange Modification Justification Study
xit 73 I-29 Interchange Modification Justification tudy Introduction Figure 1 shows the location of xit 73. This interchange is proposed to be the connecting point of the ast and West Corridors to I-29.
More informationPeterborough County Road Safety Audit Guideline Pilot
Peterborough County Pilot Table of Contents 1.0 Purpose... 3 2.0 Road Safety Audit Objectives... 3 3.0 Legal Issues... 3 4.0 Road Safety Audit Procedures... 4 4.1 Project Selection Criteria... 5 4.2 Scope...
More informationINSIDE THIS ISSUE. mctrans.ce.ufl.edu VOLUME 64 \\ OCTOBER Streets Heat Map Freeways Animation HSM Supplement
mctrans.ce.ufl.edu INSIDE THIS ISSUE McTrans Center University of Florida Civil & Coastal Engineering PO Box 116585 Gainesville, FL 32611-6585 Streets Heat Map Freeways Animation HSM Supplement Phone:
More informationNCHRP Report 687 Guidelines for Ramp and Interchange Spacing
Updates on NCHRP-Funded Geometric Design Research Projects NCHRP Report 687 Guidelines for Ramp and Interchange Spacing Brian L. Ray, PE Kittelson & Associates, Inc Portland, Oregon bray@ kittelson.com
More informationINNOVATIVE INTERSECTIONS. Terrell Hughes, PE Conceptual Planning Manager VDOT Transportation and Mobility Planning Division
INNOVATIVE INTERSECTIONS Terrell Hughes, PE Conceptual Planning Manager VDOT Transportation and Mobility Planning Division Current Tools Common Project Solutions Traffic Signalization Widening Projects
More informationThe Secrets to HCM Consistency Using Simulation Models
The Secrets to HCM Consistency Using Simulation Models Ronald T. Milam, AICP David Stanek, PE Chris Breiland Fehr & Peers 2990 Lava Ridge Court, Suite 200 Roseville, CA 95661 r.milam@fehrandpeers.com (916)
More informationRoadway Data Extraction Technical Assistance Program (RDETAP) Traffic Safety Conference College Station, June 2016
Roadway Data Extraction Technical Assistance Program (RDETAP) Traffic Safety Conference College Station, June 2016 Overview Project motivation and objectives MIRE-MIS Program RDETAP Project Overview of
More informationTransportation Management Plan
Transportation Management Plan I 80 PE County, MP 51.38 to MP 62.49 One Inch Mill and Two Inch Fill With Open Grade July 2016 Prepared by Lisa Ouellette Nevada Department of Transportation Executive Summary
More informationINTERIM ADVICE NOTE 103/08. Advice Regarding the Assessment of Sites for Ramp Metering
INTERIM ADVICE NOTE 103/08 Advice Regarding the Assessment of Sites for Ramp Metering Summary This document provides advice on identifying on-slip locations that are likely to be suitable for the implementation
More information100 Introduction Functional Classification Traffic Data Terrain & Locale Design & Legal Speed...
Table of Contents 100 Introduction... 1 101 Functional Classification... 1 101.1 General...1 101.2 Urban & Rural...1 101.3 Classification Used in ODOT Design Criteria...1 102 Traffic Data... 2 102.1 General...2
More informationProject Prioritization for Urban and Rural Projects TEAM CONFERENCE March 7, 2018
Project Prioritization for Urban and Rural Projects 2018 TEAM CONFERENCE March 7, 2018 Challenge Limited funding for transportation improvements requires strategic selection of projects to ensure resource
More informationINTERSTATE CORRIDOR PLANNING
INTERSTATE CORRIDOR PLANNING Prioritization of Corridor Studies July 29, 2015 Importance of the Interstate System Texas is an integral part of the national interstate system. The interstate system provides
More informationTRANSPORTATION PROJECT REPORT DRAFT CONCEPTUAL ACCESS MODIFICATION PROPOSAL OCTOBER 2002
TRANSPORTATION INTERSTATE 87 INTERCHANGE 11A TOWN OF MALTA SARATOGA COUNTY, NY DRAFT CONCEPTUAL ACCESS MODIFICATION PROPOSAL OCTOBER 2002 PROJECT REPORT NEW YORK STATE DEPARTMENT OF TRANSPORTATION JOSEPH
More informationAPPENDIX B. Excerpts from the October 2002 Conceptual Alternatives Report
APPENDIX B Excerpts from the October 2002 Interstate 83 and PA Route 921 The objective for the SR 921 interchange site was to study alternatives for construction of a new interchange. There are no short-term
More informationA three-stage process was implemented in order to develop and evaluate the project concepts and provide recommendations for the project.
MEMORANDUM TO: FROM: Highway 36/Rice Street PMT Mark Benson DATE: March 23, 2009 RE: Selection of a Preferred Alternative SEH No. 105803 The purpose of this memorandum is to document the process for selecting
More informationUNION CENTRE BLVD AND I-75 INTERCHANGE WEST CHESTER, OHIO
UNION CENTRE BLVD AND I-75 INTERCHANGE WEST CHESTER, OHIO New interchange Completed in 1997 Project coordinated by the Butler County TID Cooperation of local public and private sector entities Union
More informationPortable Changeable Message signs have a wide variety of
Part 6F (devices) Minnesota MUTCD 2005 with 2007 09 Revisions Part 6F (devices) Federal MUTCD 2009 Part 6F (devices) MN MUTCD Rearranged Sections 6F.55 Portable Changeable Message Signs Portable Changeable
More informationINTERACTIVE HIGHWAY SAFETY DESIGN MODEL (IHSDM)
INTERACTIVE HIGHWAY SAFETY DESIGN MODEL (IHSDM) TSITE 2016 Winter Meeting Nashville, TN February 25, 2016 AGENDA Project History IHSDM: Background & Overview IHSDM: Interstate 24 Model IHSDM: Interstate
More informationNCHRP 3-88 Guidelines for Ramp and Interchange Spacing
Session 312 Updates on NCHRP-Funded Geometric Design Research Projects NCHRP 3-88 Guidelines for Ramp and Interchange Spacing Brian L. Ray, PE Kittelson & Associates, Inc Portland, Oregon bray@ kittelson.com
More informationBreaking the Diamond: DDIs, CFIs, and SPUIs
Breaking the Diamond: DDIs, CFIs, and SPUIs Smith Siromaskul, P.E. Abstract With a recent push towards innovative solutions in interchange design, the diverging diamond interchange has been the next big
More informationTMC of the Future. Dr. Bob Edelstein, PE, PTOE Senior Vice President
TMC of the Future Dr. Bob Edelstein, PE, PTOE Senior Vice President Overview Traffic Operations Centers Transportation Management Centers TMCs are transforming to be more proactive in addressing recurring
More informationCOMPARISON OF SPUI & TUDI INTERCHANGE ALTERNATIVES WITH COMPUTER SIMULATION MODELING
COMPARISO OF SPUI & TUDI ITERCHAGE ALTERATIVES WITH COMPUTER SIMULATIO MODELIG Matthew J. Selinger, PTOE William H. Sharp, PTOE ABSTRACT There are numerous technical papers and reports discussing the operations
More informationStatewide Roundabout Guidance
Statewide Roundabout Guidance Chris Tiesler, PE Associate Engineer Michael Clements, PE Signal & Arterial System Manager Agenda Background Three Tools Screening Tool Spreadsheet Tool Design Guidance Primer
More informationUniversity Region FY 2023 Final Scoping Package
September 30, 2016 University Region FY 2023 Final Scoping Package I-496/US-127 Scoping From I-96 to the I-496/US- 127 Interchange CS 33045 JN 126442 I-496/US-127 STUDY EXECUTIVE SUMMARY UNIVERSITY REGION
More informationLOCATION AND DESIGN DIVISION
VIRGINIA DEPARTMENT OF TRANSPORTATION LOCATION AND DESIGN DIVISION INSTRUCTIONAL AND INFORMATIONAL MEMORANDUM GENERAL SUBJECT: Interstate, NHS Non-Interstate and Non-NHS (IJR / IMR Guidance) SPECIFIC SUBJECT:
More information2017 Highway Safety Improvement Program Call
2017 Highway Safety Improvement Program Call The Highway Safety Improvement Program (HSIP) is for highway safety projects that eliminate or reduce the number of fatalities and serious injuries on all public
More informationROADWAY DESIGN AND CONSTRUCTION STANDARDS
ROADWAY DESIGN AND CONSTRUCTION STANDARDS Adopted: 1990 Amended: 1994 2003 2011 2013 ROADWAY DESIGN AND CONSTRUCTION STANDARDS ORIGINALLY ADOPTED IN 1990 Resolution No. R-990-046 OFFICIALLY AMENDED IN
More informationActive Direction to Managing Transportation ATDM: Ohio s Perspective
Active Direction to Managing Transportation ATDM: Ohio s Perspective John Gray, Associate Vice President AECOM Brenton, Bogard, P.E. Studies Engineer Ohio Department of Transportation Ohio Transportation
More informationWisDOT Zoo Interchange Dynamic Late Merge and Queue Warning System
WisDOT Zoo Interchange Dynamic Late Merge and Queue Warning System 07.21.16 Meeting Agenda 1. Zoo Interchange Project Overview 2. TMP (Traffic Management Plan) Strategies 3. Innovative Traffic Mitigation
More informationTEXAS CONNECTED FREIGHT CORRIDORS
TEXAS CONNECTED FREIGHT CORRIDORS 2017 USDOT ATCMTD Program Award 17 October 2018 Table of Contents 1 Texas Triangle Challenge 3 2 Texas Connected Vehicle Vision 4 3 4 5 6 7 8 Texas Connected Freight Corridors
More informationUpdate on the Human Factors Guidelines (HFG) for Road Systems: Status and Implementation Activities
Update on the Human Factors Guidelines (HFG) for Road Systems: Status and Implementation Activities Presentation to the AASHTO Standing Committees on Traffic Engineering & Highway Traffic Safety John L.
More informationCHAPTER 18 TEMPORARY ROADS AND BRIDGES
Change #1 - Revised 12/12 CHAPTER 18 TEMPORARY ROADS AND BRIDGES 18.0 INTRODUCTION These guidelines are to be used to design temporary roads and bridges where traffic will be maintained at the construction
More information1. Controlling the number of vehicles that are allowed to enter the freeway,
Chapter 25 Ramp Metering 25.1 Introduction Ramp metering can be defined as a method by which traffic seeking to gain access to a busy highway is controlled at the access point via traffic signals. This
More informationProject History Interchange Innovation Existing Conditions Proposed Design Approval Process Final Details PRESENTATION FOCUS
DIVERGING DIAMOND INTERCHANGE State Route 120/Union Road Diverging Diamond Retrofit Presented by: Mark Houghton Sam Sherman Matt Brogan Aaron Silva City of Manteca Caltrans, District 10 Mark Thomas Mark
More informationRTC Position on Pavement Condition Targets
RTC Position on Pavement Condition Targets NCTCOG Supports TxDOT Statewide 2022 Good Pavement Condition Targets for National Highway System Facilities NCTCOG Supports TxDOT Statewide 2022 Poor Pavement
More informationS.R. 0070, Section T20. Engineering District ASHE National Project of the Year Award
S.R. 0070, Section T20 Engineering District 12-0 ASHE National Project of the Year Award AMERICAN SOCIETY OF HIGHWAY ENGINEERS National Project of the Year Award OFFICIAL ENTRY FORM AWARD CATEGORY (Check
More informationTEXAS FREIGHT MOBILITY PLAN. Greater Houston Freight Committee Kick-Off Meeting
TEXAS FREIGHT MOBILITY PLAN Greater Houston Freight Committee Kick-Off Meeting July 11, 2016 Overview of Texas Freight Mobility Plan The Freight Plan is TxDOT's first multimodal transportation plan that
More informationEvaluation of Freeway Work Zone Merge Concepts
Evaluation of Freeway Work Zone Merge Concepts Michael Kurker University of Texas at Austin Research in conjunction with Ruoyu Liu, Shoupeng Tang, Chris Fournier Jen Duthie, Natalia Ruiz Juri, Randy Machemehl,
More information2015 ATSSA Traffic Expo Report
2015 ATSSA Traffic Expo Report February 8-10, 2015 Tampa, Florida By: Victor Lund, St. Louis County Traffic Engineer Submitted: February 11, 2015 Sunday, February 8, 2015 Power Talk Grassroots Advocacy:
More informationPROPOSED AMENDMENT OF THE I 76 INTEGRATED CORRIDOR MANAGEMENT PROJECT TO THE CONNECTIONS 2040 PLAN FOR GREATER PHILADELPHIA
PROPOSED AMENDMENT OF THE I 76 INTEGRATED CORRIDOR MANAGEMENT PROJECT TO THE CONNECTIONS 2040 PLAN FOR GREATER PHILADELPHIA Background and Project Description In July 2013, the Delaware Valley Regional
More informationWelcome and thank you for spending time with us today to talk about the 75 th Street Corridor Improvement Project.
1 Welcome and thank you for spending time with us today to talk about the 75 th Street Corridor Improvement Project. 2 During this public meeting, we will explain the 75 th Street Corridor Improvement
More informationRoadway Data Extraction Technical Assistance Program (RDETAP)
Roadway Data Extraction Technical Assistance Program (RDETAP) 41 st International Forum on Traffic Records and Highway Information Systems October 2015 Overview Project motivation and objectives MIRE MIS
More informationTRAFFIC SAFETY EVALUATION. Using the Highway Safety Manual and the Interactive Highway Safety Design Model. I 15 Dry Lakes Design Exception
TRAFFIC SAFETY EVALUATION Using the Highway Safety Manual and the Interactive Highway Safety Design Model I 15 Dry Lakes Design Exception Prepared for: Nevada Department of Transportation Safety Engineering
More informationChapter 3 FREEWAY CORRIDOR TRAFFIC MANAGEMENT
Chapter 3 FREEWAY CORRIDOR TRAFFIC MANAGEMENT TABLE OF CONTENTS PAGE 3-1.00 INTRODUCTION...................................................3-3 1.01 Purpose 1.02 Chapter Organization 3-2.00 GLOSSARY.......................................................3-3
More informationActon Parking Committee. Presented by:
Presented to: Acton Parking Committee Presented by: The MBTA/HNTB Team MARCH 2009 Project Goals Improve Performance Increase Transit Reliability Decrease Travel Time Key Project Elements Engineering Work
More informationITS Multimodal Initiatives in Virginia HRTO Subcommittee Meeting Hampton, VA, June 11, 2013
ITS Multimodal Initiatives in Virginia HRTO Subcommittee Meeting Hampton, VA, June 11, 2013 Chris Francis ITS Program Development Manager Operations and Security Division Advancing VDOT s Operations Program
More informationNW La Center Road/I-5 Interchange Improvement Project (MP 16.80)
FINAL DRAFT - NW La Center Road/I-5 Interchange Improvement Project (MP 16.80) La Center, Washington February 2015 FINAL DRAFT - NW La Center Road/I-5 Interchange Improvement Project (MP 16.80) La Center,
More informationTracy Scriba, FHWA Work Zone Conference March 2009
Crash Reduction Strategies for Work Zones Tracy Scriba, FHWA Work Zone Conference March 2009 Presentation Outline Work Zone Safety and Mobility Challenges Work Zone Crash Reduction Strategies ITS Effective
More informationExisting vs. Proposed Ramp Noise Sensitivity Analysis Austin Boulevard Interchange
I-290 Phase I Study West of US 45 (Mannheim Road) to Racine Avenue Existing vs. Proposed Ramp Noise Sensitivity Analysis Austin Boulevard Interchange Technical Memorandum Prepared By: Huff & Huff, Inc.
More informationInterchange Design. Nick Hoernke, Bill Roth and Eric Sorensen
Interchange Design Nick Hoernke, Bill Roth and Eric Sorensen Presentation Overview Interchange Characteristics Process for Interchange Type Selection Service Interchange System Interchange New Type of
More information2. Guiding Principles, Objectives, and Policies
2. Guiding Principles, Objectives, and Policies INTRODUCTION The guiding principles for the 2040 MTP Update establish the vision and key focus areas for this planning effort. They combine the guidance
More informationAppendix B. Benefit-Cost Technical Memorandum
Appendix B Benefit-Cost Technical Memorandum This Page Left Blank Intentionally MEMORANDUM TO: FROM: Michael Kalnbach MnDOT District 1 Project Manager Graham Johnson, PE DATE: September 2, 2014 RE: TH
More informationPast, Present, and Future
The Highway Capacity Manual: Past, Present, and Future HCM Chronology 1 st Ed.: 1950 BPR/HRB/GPO (147 Pgs) 1957 Highway Research Board Bulletin 167 2 nd Ed: 1965 TRB Special Report 87 (411 pgs) 1980 TRB
More information1000 Performance Based Project Development (PBPD)
Table of Contents 1000 Introduction... 1 1001 Application to the PDP... 1 1001.1 Planning... 2 1001.2 Preliminary Engineering... 3 1001.3 Design... 3 1002 Evaluation of PBPD Options... 4 1002.1 General...
More information