Transcript ARC’s Strategic Thoroughfare Plan Bridging the Gap from Travel Demand Model to Micro-Simulation GPA Conference Fall 2012 Presented By: David Pickworth, PE.

ARC’s Strategic Thoroughfare
Plan
Bridging the Gap from Travel Demand
Model to Micro-Simulation
GPA Conference
Fall 2012
Presented By:
David Pickworth, PE
The Project
• Arterials are the most challenged facilities
in Atlanta
• Competing travel interests
• Cohesive planning, operations, and
management
EFFICIENT PROJECT IMPLEMENTATION
Overall Project Goals
• Prioritized arterial roadway network
• Develop guidelines on management and
design
• Create a Geographic Database
• Perform case studies to test concept
designs
Case Studies
• Transportation Assessment for MMCS
• 5 Case Study Corridors
• Case Studies selected based on differing
developments, area types, and roadway
configurations
Case Studies
Strategic Regional Thoroughfare Plan Case Studies
 Aviation Blvd./Conley Rd. – Clayton County
 Moreland Ave. – Fulton County
 Memorial Dr. – DeKalb County
 Roswell Rd. (SR 9) – Sandy Springs/Rowsell
 McDonough Rd. (SR 155) – Henry County
The Problem
Regional
Subarea
Develop An Analysis Process That Maintains, And Is
Consistent With, The Overall Travel Pattern
Relationships Established In The Regional Travel
Demand Model Through Several Levels of Analyses
Corridor
Analysis Provided
Regional
 Regional Travel Patterns
Subarea
 Establish Peak Period
Travel Routes (DTA)
Corridor
 Detailed Transportation
System Operations
During Peak Hours
 Highway
 Transit
 Pedestrians
Regional Travel
Demand Model
Application
(Daily Trips)
Matrix Variegation
Procedure
(Hourly Trips)
Peak Period
(AM and PM)
Traffic Assignments
The Process
Extract Peak Period
(AM and PM)
Subarea Network
and Trip Tables
Matrix
Estimation
Procedure
(If Required)
Subarea DTA
AM and PM
Peak Period
Assignments
Extract AM and PM
Peak Period
Trip Tables For
Corridor
Traffic
Counts
VISSIM Model
Network
Development
VISSIM Model
Application
Evaluation
Measures
Evauation Measures
Study Area (AM & PM Peak Period)
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
Vehicle Miles of Travel (VMT)
Vehicle Hours of Travel (VHT)
Average Peak Period Speeds
Vehicle Hours of Delay
By Facility Type
Corridor (AM & PM Peak Hour)





Average Speeds
Average Vehicle Delay (Seconds)
Approach & Intersection Level of Service (LOS)
Transit Boardings (Daily)
Queue Lengths
Roswell Road (SR9)
Example Study
Area Network
N. Hairston Rd.
N. Hairston Rd.
Memorial Drive Corridor
Example Corridor
Network (VISSIM)
VISSIM Network
INTERSTATE
285
Memorial Drive Corridor
Example Corridor
Network (VISSIM)
N. Hairston Raod
Example Roswell Rd. Study Area
DTA Assignment Animation
Roswell Rd. Corridor
Continuous Flow Intersection
Concept Animation
Roswell Road (SR 9) at
Riverside Road/Azalea Drive
2040 PM Peak Hour
RTP
2040 PM Peak Hour
Scenario Improvement
(Continuous Flow
Intersection)
Conclusion
• Use regional travel demand model
• Bridge the gap between different local
agencies for consensus in development
strategies
• Using the appropriate tools to “funnel”
travel demand down to peak hour
microsimulation-level traffic
• More information: www.atlantaregional.com