Introduction of Level of Service and Safety Improvements on the R44 incorporating Access Management Principles - Bertie Phillips, Kantey & Templer Consulting
The R44 is a major four lane divided arterial route linking Somerset West on the outskirts of Cape Town to the nearby town of Stellenbosch. Daily traffic volumes have increased exponentially from some 5,000 vehicles per day in 1975 to 30,000 vehicles per day in 2015.
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 488: Roundabout Practices summarizes roundabout policies, guidance, and practices within state departments of transportation (DOTs) as of 2015. The synthesis may be used as a reference for state agencies that are creating or updating their roundabout and intersection control policies.
Project: Project Information
The Intersections Joint Subcommittee has an online manual that provides state of the art guidance on unsignalized intersections.
Operational Effects of Geometrics and Access Management, 2015
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2486, explores 10 papers related to operational effects of geometrics and access management in the transportation sector, including:
Presentations from the 11th National Access Management Conference held in Seattle Washington on September 21-23 in conjunction with the AASHTO Subcommittee on Design (SCOD).
Moderator/AASHTO SCOD Welcome: Carlos Braceras, Chair Utah
Washington State Welcome: Lynn Peterson, Secretary WSDOT
FHWA Welcome: Dan Mathis, Washington Division Office FHWA
AASHTO Update: Jim McDonnell, AASHTO
CALL FOR PAPERS & PARTICIPATION
Access Management 2016
3rd International Conference & Exhibition
6 & 7 July 2016, CSIR Conference Centre, Pretoria, South Africa
Presented by: The Transportation Division of the South African Institution of Civil Engineering (SAICE) and the Access Management Committee of the Transportation Research Board (TRB) in association with SBS Conferences
This TRB website provides a gateway to information and resources pertaining to the state-of-the-practice in access management and its integration into established planning, policy, and design processes.
This paper provides an expansion and explanation of the presentation of the "Design of Right-Turn Lanes" presented in Session 619 of the 2015 Annual Meeting of the Transportation Research Board. The paper addresses the operational issues and the design of right-turn lanes. As indicated in the paper, many issues relating to right-turn lanes are the same as for left-turn lanes. Deceleration rates reported in NCHRP Report 780 for left-turns are reasonably consistent with those previously assumed. The rationale for taper length as opposed to taper ratio is discussed.
Proceedings of the Second International Conference on Access Management held in Shanghai, China, September 25-27, 2014. Sponsored by the Access Management Committee of the Transportation Research Board; Tongji University; Shanghai Jiaotong University; the Research Institute of the Ministry of Public Security, PRC; the Research Institute of Highway, PRC; the Ministry of Transportation, PRC; and the Construction Institute of ASCE
The TRB Standing Committee on Access Management (AHB70) will be holding its 2015 11th Access Management Conference in Seattle, WA, USA from September 21 – September 25, 2015, at the Seattle Sheraton Hotel.
Submission Deadline is April 15, 2015
Download the PDF from the link
TRB’s Access Management Manual, second edition, provides guidance on a coordinated approach to transportation and community design that is designed to help enhance mobility, provide greater mode choice, and improve environmental quality. The content is interdisciplinary, with guidance pertinent to various levels of government as well as to pedestrians, bicyclists, and motorized vehicles, including trucks and buses. Access management is addressed comprehensively, as a critical part of network and land use planning. Key updates include
Perspectives on Urban Form, Road Classification and Access Management
Hein J. Stander, AECOM
- Spacing Higher Order Roads
- Comparison International Cities
- Access Spacing and Real World Situation
- Application of AM in Practice
APPLICATION AM IN PRACTICE:
Approach proposed for practical application:
Estimation of Vehicle Queue Lengths based on Driveway Access Design
Spacings of Unsignalized Intersections in Urban Areas – an Empirical Approach based on Operational and Safety Requirements
The Changing Focus of Access Management
Experimental Analysis of a Direct Access Driveway at a Roundabout: Performance with one or more slip lanes
Unlock DDI’s Capacity by Re-Routing Left-Turns at Nearby Intersections
Roundabouts and Access Management
Classification and Design of Highway At-Grade Intersections
Model of deceleration lane length calculation
Interchange Area Master Plans
Corridors to the Future: Access Management and Web Technology
This session will explore how to use web technology, including the TRB AHB70 website www.accessmanagement.info to find more resources, and learn more about access management. You will find out what's available now, and what we hope our future will bring. This interactive session will include opportunities for participants to provide feedback how we can work together to make our website better.
Research on Driving Safety of Urban Interchange Ramp under Crosswind
A Study of the Opening Size of Auxiliary Lanes on the Driving Behavior-based analysis
The Development of Access Management Guidelines for the Western Cape Government, South Africa
A Compendium Survey of International Access Management Practices and Concepts
Access Program Framework
Internationally, an access management program framework will vary by type of government, culture and established preferences in roadway design and traffic engineering. Mr. Demosthenes will use personal experiences from the USA, Greece, and Dubai and Abu Dhabi of the United Arab Emirates (U.AE.) to present and discuss some universal access management issues and principles for agency programs.
Roadway Access Management and its Importance to the Transportation System of Developed and Developing Nations
Chair TRB Committee on Access Management
Strategic Objectives of the Committee
Presentations from ICAM 2014 Sept 25-26, 2014
Younjie Zhang, Vice Chairman and Secretary-General of Shanghai Highway & Transportation Society
Marc Butorac, Chair TRB Committee on Access Management Opening Remarks
Richard Cunard, TRB Representative
Hangie Lin, Vice Dean, School of Transportation Engineering, Tongji University
This report presents a study on the influences of select cross-sectional-related design elements (specifically median configurations and bicycle
lanes) and their impact on crash severity and type, as well as the associated driver gap acceptance for turning maneuvers at midblock driveway
locations on urban arterials. The primary goal of this proposed research is to better understand how the median and bicycle lane configurations
can influence safety and operations at driveway locations.
This is a list of all the pages on the website as of 9/18/2014
You can find words on this page using your "FIND" tool in your browser
You may also use Google/Yahoo/Bing to find topics by using the following search phrase:
"SEARCH PHRASE" site:accessmanagement.info
TRB’s National Cooperative Highway Research Program (NCHRP) Report 780: Design Guidance For Intersection Auxiliary Lanes expands on guidance provided in A Policy on Geometric Design of Highways and Streets (the Green Book), published by the American Association of State Highway and Transportation Officials (AASHTO). This report highlights information regarding bypass lanes, channelized right-turn lanes, deceleration and taper length, design and capacity of multiple left-turn lanes, and alternative intersection designs.
OPERATIONS AND MAINTENANCE GROUP[OU1]
Committee Triennial Strategic Plan (TSP) Committee Name and Number: AHB70, TRB Access Management Committee
Committee Chairperson: Marc Butorac, Kittelson and Associates, Inc.
TSP ThreeYear Period: April 2014 – April 2017
Date Prepared: August 2014
Committee Future Outlook Statement:
Current Committee Scope
Attached is the agenda for the AHB70 Outreach and Research Subcommittees.
July 20th, 4:30 to 6:00 p.m. (MDT)
Salt Lake, UT
1) Welcome and Introductions (Butorac)
a. Conference Call Intros
i. Telephone Conference Call-in Number: 1-866-746-1676
ii. PIN number: 1419# and Security code: 1419#
iii. Please keep your phone on mute while you are not speaking
2) Meeting Agenda Review/Modifications (Butorac)
3) Consent Agenda Items (Hopes)
a. Acceptance of the 2014 Annual Meeting Minutes