The 13th National Access Management conference will be held in Boston in 2022.
Lionel Lucien is the Conference Chair. We look forward to another great conference in a great city in the Northeast. The date has not been deterimined.
Improving access management strategies has not only safety benefits in the order of millions annually, it has system performance benefits – travel time reliability – as a function of gross state product value – the movement/cost of the goods and services and the economic performance of industry in your state. The cost of the supply chain – and the competitiveness of the products of your state competing against others in global trade.
Join us at the 2020 TRB Annual Meeting in Washington, DC January 12-16
(Note, on Dec 10 TRB assigned a new comittee structure. Access Management Committee (ACP60) is now under the Operations Section (ACP00).
Sunday 1:30 PM-4:30 PM
Workshop 1074
The Utah DOT has created an impressive Statewide Raised Median toolkit.
The purpose of the Assessment Tool is to guide decision-makers to determine the appropriateness and potential benefits of raised medians on specific roadway corridors. Potential users of this tool include planners, design engineers, traffic engineers, and project managers.
ASSESS
Research-based evaluation to determine suitability
ENGAGE
Guidance for community discussions
SUPPORT
Resources to support decisions
NHI offers two courses to learn about Access Management. A comprehensive three-day approach to learning techniques and impacts of Access Management, and a shorter one day overview to help those who want a basic understanding.
Access Management: Fundamental Principles, Application and ComputationPROGRAM AREA: Design and Traffic Operations
COURSE NUMBER: FHWA-NHI-133078A
COURSE DESCRIPTION:
NEW! This document is the 3rd core resource document, supporting the Access Management Manual and AMAG (Access Management Application Guidelines)
Synthesis of Case Studies and Development of Video-Sharing Procedure for Access Management Professionals
Robert Sanders, Brigham Young University (Tie for 2nd Place Student Poster Award)
Crash Risk and Access Spacing on Two-Lane and Multi-Lane Highways
Hitesh Chawla; Peter T. Savolainen, Ph.D., P.E.
INTRODUCTION
Effective access management is essential to mitigating traffic crash risks. Most of the crashes occurring near access points are a result of conflicts between multiple vehicles. This motivates the development of guidelines for access spacing. To this end, this study evaluated the relationship between crash risk and access point spacing on two-lane and multi-lane highways across the state of Iowa.
Access Management to Reduce Wrong-Way (WWD) Driving on Alabama Divided Highways
Beijia Zhang
A divided highway is considered as a highway with physical separation, and the side streets are its access points in this study.
WWD crashes are more possible than other kinds crashes to result in fatal or incapacitating injuries. The majority of previous studies are focused on freeways instead of divided highways.
112 WWD crashes were identified in Alabama divided highways from 2009 to 2013.
Interchange Deceleration Lane Design Based on Naturalistic Driving Speed and Deceleration Rates
Dan Xu (1st Place Poster Award Winner) and Chennan Xue
(Poster updated 8/1/2018)
The Green Book provides the minimum lengths of deceleration lanes. The length recommendations provided by the 2011 edition are similar to the documents published in 1965, which were based on the data collected in the 1930s and had not been updated. (Fitzpatrick et al., 2012; Abdelnaby, 2014) Data was obtained from NDS dataset, including Video and Time Series Report.
Access Control and Geometric Features at the Interchange Terminals with a large number of Wrong-Way Incidents: Case Studies in Alabama
Md Atiquzzaman (Tie for 2nd Place Award)
Although wrong-way driving crashes are rare, they draw a lot of attention due to their severe outcomes. Two interchange terminals were monitored by video camera for 48 hours on a typical weekend. The two locations experienced 10 and 17 WWD incidents.
Objectives
A Probabilistic Model to Predict Intermittent Sight Distance Obstruction at Unsignalized Intersections on High-Speed Rural Divided Highways
Chennan Xue and Dan Xu
Minor-road left-turn vehicles’ views are likely to be blocked by major-road right-turn vehicles on the conventional right-turn lane at unsignalized intersections.
Conclusions
Right-Turn Lane Effects on Unsignalized Intersection: A Before-and-After Study of Right-Turn Lane Implementation on Unsignalized Intersection
Qing Chang; Yukun Song; Huaguo Zhou
12th AM CONFERENCE Session – Access Management “The Musical”
Thanks to the Brew City Harmony Barbershop quartet for bringing "Access Management: The Musical" to the 12th National Conference on Access Management!
12th AM CONFERENCE Session – Access Management “The Musical”
Thanks to the Brew City Harmony Barbershop quartet for bringing "Access Management: The Musical" to the 12th National Conference on Access Management!
Congratulations to our 2018 Student Poster Winners!
First Place went to Dan Xu (Auburn University)
2nd Place Tie to Rob Sanders (Brigham Young University)
2nd Place Tie to Md Atiquzzman (Auburn University)
Student Poster Participants:
12th National Access Management Conference Proceedings
Madison Wisconsin, July 17-19, 2018
View YouTube Videos (Please subcribe to our YouTube Channel!)
Video-Sharing Procedure for Access Management Professionals
The Virginia Department of Transportation (VDOT) has released a report that addresses Virginia’s standards and exemption processes for commercial entrance spacing. This report also observes the extent to which commercial access exceptions are used in Virginia, and the impact on crashes at these sites. The previous VDOT Road Design Manual details requirements that new commercial entrances meet certain minimum spacing standards, though landowners may request exemptions.
NEW! NCHRP Research Report 875: Guidance for Evaluating the Safety Impacts of Intersection Sight Distance is a resource for practitioners involved in the planning, design, operations, and traffic safety management of stop-controlled intersections. It provides information on how to estimate the effect of intersection sight distance (ISD) on crash frequency at intersections and describes data collection methods and analysis steps for making safety informed decisions about ISD.
View the current draft program (5-21-18) for the
12th National Access Management Conference on
July 17-19, 2018, at the Concourse Hotel in Madison, Wisconsin.
Get more information here
We are happy to announce that – for the first time ever – sponsorship of the National Access Management Conference is available. These sponsorships help support the work of this committee to spread the word about how access management improves our transportation system by saving lives and improving mobility.
Quite a variety and levels of sponsorship are available, as indicated in the sponsorship form.
You can help support the National Access Management Conference as a
Want to learn more about access management and participate in a peer-to-peer information exchange? Join our listserve at accessmanagement@listserv.usf.edu
Here is the link to subscribe to the listserv:
http://listserv.usf.edu/scripts/wa.exe?A0=ACCESSMANAGEMENT
This listserv is a good resource for sharing ideas and networking.
Workshop 177 - 2018 TRB Annual Meeting
Cross Streets at Freeway Interchanges: Access Management and Geometric Design Issues
Sunday 1:30 PM- 4:30 PM
Convention Center, 102B
Workshop
Stuart Samberg, Rummel, Klepper, and Kahl, LLP (RK&K), presiding
Sponsored by:
Standing Committee on Access Management (AHB70)
Standing Committee on Operational Effects of Geometrics (AHB65)
Many states implement access management, although approaches will vary in scope and style. This list will allow for identifying and cross-sharing of best practices among states and practitioners.
State Websites:
Alabama
Permits & Operations – includes AM Manual
dot.state.al.us/maweb/permitsOperations
Alaska
Many states implement access management, although approaches will vary in scope and style. This list will allow for identifying and cross-sharing of best practices among states and practitioners.
State Websites:
Alabama
Permits & Operations – includes AM Manual
http://www.dot.state.al.us/maweb/permitsOperations.html
Alaska
MEETINGS
National Conference on Access Management Subcommittee, AHB70(1)
Tuesday 12:00 PM- 1:30 PM
Marriott Marquis, Marquis Ballroom Salon 9 (M2)
Mike Roach, Wisconsin Department of Transportation, presiding
More information about 2018 National Conference
Access Management Research Subcommittee, AHB70(2)
Research Portal
An important function of TRB is to stimulate research that addresses concerns, issues, or problems facing the transportation community. To this end, AHB70 is tasked with developing a research agenda and disseminating research results that relate to access management. This research portal has been created to post up-to-date information relating to AHB70’s research activities.
TRB's newest publications on access management draw on national and state research to respond to the need for a more coordinated approach to transportation and community design that preserves the safe and efficient movement of peoples and goods, provides supporting networks in developed areas, and reinforces desired urban form.
FDOT Rule 14-96 Marked up to show traffic study requirements
Chapter 14-96 is the Florida Statues Rule for State Highway System Connection Permits.
This document highlights the text that is applicable to traffic studies in Florida.
Designing Walkable Urban Thoroughfares: A Context Sensitive Approach
An ITE Recommended Practice
Objectives of this Report
The objectives of this report are to
Synthesis of the Median U-Turn Intersection Treatment, Safety, and Operational Benefits
FHWA-HRT-07-033
This document is a technical summary of the Federal Highway Administration report,
Safety Evaluation of Access Management Policies and Techniques, FHWA-HRT-14-057.
INTRODUCTION
This is a one-page guide to strategies to improve safety at unsignalized intersections, including:
High frequency of right-angle crashes attributed to:
FDOT has the responsibility of maintaining the State’s roadway system. As a result, it is FDOT’s responsibility to monitor the traffic impacts of new development along the State Highway System. In response to the ever changing economic climate following the downturn of the economy, FDOT saw the need to assess the validity and applicability of trip generation and internal capture practices in Florida.
Transportation professionals today are faced with the challenge to meet the mobility needs of an ever increasing population with limited resources. One potential treatment to mitigate congestion and safety problems at rural expressway intersections, while trying to avoid signalization or grade‐separation, is the J‐Turn intersection treatment, which has been successfully implemented in Michigan, Florida, Maryland, New Jersey, and Louisiana.
Mike on Traffic provides proven practioners tips to help professionals.
These checklists may be useful:
FHWA Tri-fold Summary of 8 Page Brochure
Safety Benefits of Raised Medians and Pedstrian Refuge Areas
Access Management (Driveways)
FHWA 4 page brochure
Introduction
This compliation of documents are provided to FDOT staff to help them implement access management in Florida.
Handbooks
The TRB Access Management committee now has a YouTube Channel devoted to sharing the best information from www.accessmanagement.info.
This two-page brochure provides a summary of Corridor Access Management
Proven Safety Countermeasures
Corridor Access Management
Effective local access management requires planning as well as regulatory solutions. Communities should establish a policy framework that supports access management in the local comprehensive plan, prepare corridor or access management plans for specific problem areas, and encourage good site planning techniques. Land development and subdivision regulations should be amended accordingly and communities may also consider a separate access management ordinance.
