Dynamic Lane Configuration Treatment at Signalized Intersections in Bangkok, Thailand - Vasin Kiattikomol, King Mongkut's University of Technology Thonburi, Thailand
pdf (2.50MB)
paper (996KB)
Alternative Intersections/Interchanges in Commerial Areas: Applications, Misconceptions and Benefits - Tony Lau, Utah Department of Transportation, USA
pdf (968KB)
paper (632KB)
Access Management 2016 - CSIR Convention Centre - 6 & 7 July
Open & Welcome - Hein Stander
pdf (2.73MB)
Welcome by SAICE Transportation Division - Robin Chetty
pdf (1.56MB)
Opening Address - Kobus van der Walt, SANRAL
pdf (1.26MB)
Menu of all presentations from the 2012 10th National Conference on Access Management and TxDOT Planning Conference in Dallas Texas.
Common Reasons to Consider Exceptions
Impacts to the natural environment
Social or right-of-way impacts
Preservation of historic or cultural resources
Sensitivity to context or accommodating community values
Construction or right-of-way costs
Risk Management Characteristics
Explicitly addresses uncertainty
Based on the best available information
Part of the decision-making process
Access Spacing and Corner Clearance
Corner Clearance is the distance provided between a roadway intersection and the nearest access connection
Corner Clearance is a special case of access connection spacing
Outline
What is a CFI?
Why consider a CFI?
Access Management Issues at a CFI
Potential Access Solutions
Questions Comments
Potential Access Solutions
Inter-parcel Access
Service Roads
Partial Median Openings
Right-In Only Driveways
Right In-Right Out Driveway on CFI Leg
U Turns
Purchase Access Rights
Relocate/Add Driveway
Well-designed Modern Roundabouts enhance the achievement of Access Management principles
Maintain Integrity of Arterials
Balance Mobility and Access
Improve Safety
Reduce
Congestion
Extend the life of
Infrastructure
Roundabout Operational & Safety Characteristics:
Driveway and intersection spacing versatility
Geometric flexibility (properly designed)
Less queuing
Topics
New Jersey Jughandle Intersection (NJJI)
Displaced Left Turn Intersection (DLF)
Median U-Turn Intersection (MUT)
Restricted Crossing U-Turn Intersection (RCUT)
Summary
All unconventional intersection designs are conceived to take advantage of the local traffic pattern
Their main design objectives are to improve LOS of critical movements, maintain or improve overall safety at main intersection, and generate tolerable delays to non-critical movements
Case Studies
Roundabouts Enhance the Achievement of Access Management Principles
Roundabout Operational Characteristics Allow for:
Bill Eisele
Development of Left-Turn Warrants for Unsignalized Intersections
TTI
Purpose of NCHRP Project 3-91
Conclusions
Objectives
Findings and Recommendations: Access Spacing from Interchange Ramp
Field Evaluation of Restricted Crossing U-Turn Intersection The Maryland Experience Presentation Outline The Safety Issue To Be Addressed RCUT Concept Suitable traffic conditions for RCUT implementation Control parameters FHWA Evaluation Evaluation results Conclusions Slide Titles Field Evaluation of Restricted Crossing U-Turn Intersection (RCUT) Presentation Outline The Safety Issue To Be Addressed RCUT Concept Suitable Traffic Conditions for Using RCUT RCUT Control Parameters U-Turn Opening Location FHWA Evaluation Driver Behavior Study Signing Study (minor road lanes not
Objective Develop a statistical model to estimate the number of access point related collisions occurring at access points near signalized intersections Provide guidelines for site planners to distinguish higher collision sites from lower collision sites and eventually prevent constructing these sites Slide Titles Early Investigation of Access Points near Signalized Intersections Access Point Safety Objective Scope Literature Review Data Preparation Modeling Methodology Collision Model Higher Collision Sites Higher Collision Analysis Contributing Factors Recommended Guideline Research
