1. Bharath Paladugu
TRPC
Clyde Scott
Independent Consultant
Ming-Bang Shyu
Fehr & Peers
TRPC Smart Corridors: implementing DTA using DYNAMEQ The 22nd INTERNATIONAL Emme UsERS’ CONFERENCE September 16, 2011 Portland, or

2. Presentation outline TRPC Smart Corridors project overview
DTA model development using DYNAMEQ
TRPC Modeling set up and vision
I-5/US 101 Interchange Feasibility Study
Where do we go from here?

3. Geography
THURSTON COUNTY
SMART CORRIDORS

4. SMART CORRIDORS PROJECT OVERVIEW
To improve multimodal traffic operations on the corridors.
Analyze operational needs
Evaluate alternatives such as signal coordination and transit signal priority
Investment strategy
So, what tool do we use?
Traffic operations at a regional scale
DTA MODEL

5. DYNAMEQ DTA model development
Import regional model from EMME
Network refinements:
Intersection controls and geometry
Signal timing data for about 80 signalized intersections
Centroid loading points
OD Trip Matrices:
SOV, HOV, Trucks
PM Peak 1-hour trip tables from EMME
30-minute shoulders
Calibration/Validation:
Link counts and Intersection turning movement counts
Travel time and speed data
Lane queues

6. Simulation results
OUTFLOW
DENSITY

7. TRPC Models set up and vision
EMME MODEL
DYNAMEQ MODEL
4-step model
Long range planning
Land use and policy evaluation
Smart Corridors
Corridor study
Traffic operations
ITS evaluation
Air Quality
Subarea model
Licensing issue
Core urban area

8. I-5/US 101 Interchange Feasibility Study
Key system Interchange
Safety and mobility issues
To identify existing and future needs
Analyze a range feasible alternatives -
Capital improvements
Ramp metering
Shoulder running

9. I-5/US 101 STUDY NETWORK REFINEMENTS
Subarea Model
Smart Corridors Model

10. Dta assignment Trip Tables Convergence Modes: SOV, HOV, Trucks
PM Peak Period - 2 hours
PM peak hour demand from EMME model
30 minute shoulders
Peaking factors
Convergence

11. ALTERNATIVES ANALYSIS
BRAIDED RAMPS

12. RESULTS – MANDATORY LANE CHANGE

13. RESULTS – QUEUE LENGTHS

14. RESULTS – NODE DELAYS

15. RESULTS - DENSITY

16. CONCLUSIONS AND NEXT STEPS
DTA model and Planning for Operations
DYNAMEQ and opportunity for the jurisdictions to integrate signal coordination efforts
Data needs
Subarea – can we fill the donut hole back?
Best practices to coordinate EMME/DYNAMEQ model developments

17. THANK YOU Contact – Bharath Paladugu 360.741.2510 paladugub@trpc.org
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