ARC’s Strategic Thoroughfare Plan Bridging the Gap from Travel Demand Model to Micro-Simulation
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Transcript of ARC’s Strategic Thoroughfare Plan Bridging the Gap from Travel Demand Model to Micro-Simulation
ARC’s Strategic Thoroughfare Plan
Bridging the Gap from Travel Demand Model to Micro-Simulation
GPA ConferenceFall 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 StudiesStrategic Regional Thoroughfare Plan Case Studies
Aviation Blvd./Conley Rd. – Clayton CountyMoreland Ave. – Fulton CountyMemorial Dr. – DeKalb CountyRoswell Rd. (SR 9) – Sandy Springs/RowsellMcDonough Rd. (SR 155) – Henry County
The Problem
Regional
Subarea
CorridorDevelop 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
Analysis Provided
Regional
Subarea
Corridor
Regional Travel Patterns
Establish Peak Period Travel Routes (DTA)
Detailed Transportation System Operations During Peak Hours
Highway Transit Pedestrians
The ProcessRegional TravelDemand Model
Application(Daily Trips)
Matrix VariegationProcedure
(Hourly Trips)
Peak Period(AM and PM)
Traffic Assignments
Extract Peak Period(AM and PM)
Subarea Networkand Trip Tables
MatrixEstimationProcedure
(If Required)
Subarea DTAAM and PMPeak Period
Assignments
TrafficCounts
VISSIM ModelNetwork
Development
VISSIM ModelApplication
Extract AM and PMPeak Period
Trip Tables ForCorridor
EvaluationMeasures
Evauation Measures
Study Area (AM & PM Peak Period)Vehicle Miles of Travel (VMT)Vehicle Hours of Travel (VHT)Average Peak Period SpeedsVehicle Hours of Delay
Corridor (AM & PM Peak Hour)Average Speeds Average Vehicle Delay (Seconds)Approach & Intersection Level of Service (LOS)Transit Boardings (Daily)Queue Lengths
By Facility Type
Example StudyArea NetworkRoswell Road (SR9)
Example CorridorNetwork (VISSIM)
N. H
airs
ton
Rd.
N. H
airs
ton
Rd.
INTERSTATE
285INTERSTATE
285
Memorial Drive Corridor
VISSIM Network
Example CorridorNetwork (VISSIM)
Memoria
l Driv
e N. H
airston Raod
Memorial Drive Corridor
Example Roswell Rd. Study AreaDTA Assignment Animation
Roswell Rd. CorridorContinuous Flow Intersection
Concept Animation
Roswell Road (SR 9) atRiverside Road/Azalea Drive
2040 PM Peak HourRTP
2040 PM Peak HourScenario 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