Michigan METSIM/MOTSIM Projects: Advances in … METSIM/MOTSIM Projects: Advances in Practice & I-465 West Leg Reconstruction: Work Zone Mobility Do Nam, Ph.D., P.E. T-Concepts Corp.

Michigan METSIM/MOTSIM Projects:Michigan METSIM/MOTSIM Projects:Advances in Practice Advances in Practice

&&II--465 West Leg Reconstruction:465 West Leg Reconstruction:

Work Zone MobilityWork Zone Mobility

Do Nam, Ph.D., P.E.Do Nam, Ph.D., P.E.TT--Concepts Corp.Concepts Corp.

Brookfield, WIBrookfield, WI

Traffic Models Workshop Traffic Models Workshop Sacramento, CASacramento, CA

March 20March 20--21, 200721, 2007

2

Traffic Models Workshop in Sacramento, CA

Southeast Michigan Metro SimulationSoutheast Michigan Metro Simulation(METSIM)(METSIM)

System-Level Planning/Operational Analysis Tool Freight MobilityMETSIM Model

10 mi x 30 mi3500 nodes & 7200 links310 zones3/4 hours in AM/PM 200,000 trips in PM peak3 Vehicle Classes

3


Ambassador Gateway MOT SimulationAmbassador Gateway MOT Simulation(MOTSIM)(MOTSIM)

System-Level Maintenance of Traffic Analysis Tool Ambassador Gateway ReconstructionMOTSIM Model

15 mi x 20 mi12,000 nodes & 11,000 links440 zones3/4 hours in AM/PM 220,000 trips in PM peak4 Vehicle Classes

4


II--96/M96/M--39 Interchange 39 Interchange

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Typical PeakTypical Peak--Period TrafficPeriod Traffic

6


Central Detroit Freeway NetworkCentral Detroit Freeway Network10

7


State Plane Coordinates

#1: Compatibility w/ MDOT Resources #1: Compatibility w/ MDOT Resources

GISFramework

OrthoImageries

METSIM

8


Network Coding QualityNetwork Coding Quality

I-94/I-96 Interchange

Red lines show geometry which is included in the

model

9


Network Scalability Network Scalability

Regional

I-75TC

CDFN METSIMMOTSIM

Subarea

10


#2 #2 –– Data Processing using BalTData Processing using BalT

IssuesDifficult to Exactly Locate StationsCollected over Different Months/YearsNo information about field conditions

NeedsSystematic Data Processing ToolsData QA/QC

11


BalT (Balancing Tool)BalT (Balancing Tool)

Excel Spreadsheet with Macros Originally Developed for Balancing Traffic Counts along the CorridorUpstream/Downstream Mainline Stations and Ramps in Order Following the Direction of TravelAdded Module for System Interchanges

Sample BalT

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Balanced Traffic Counts at I-94/I96 System Interchange

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#3: Calibration Processing using LiVE #3: Calibration Processing using LiVE

Extension of BalT ApproachExtracts Assigned Link Volumes Offline and Summarizes Results with Various Stats Making Calibration/Validation Process Much More EfficientEnhanced Quality of Deliverables

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Trip Ends SummaryTarget vs. Model

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Ramp Volumes SummaryTarget vs. Model

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System Interchange Volumes SummaryTarget vs. Model

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Michigan Mobility Station •

Model Validation Data SetModel Validation Data Set

Total 27 Stations I-75: 16I-94: 8I-696: 3

Month of Sept. 200612 Days of Tues-ThursHourly CountsSpeeds

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Validation Data Set QA/QC Validation Data Set QA/QC

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AM Model Calibration ResultsAM Model Calibration Results

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AM Model Congestion PatternAM Model Congestion Pattern

8:00 AM

21


AM Model Validation ResultsAM Model Validation Results

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PM Model Calibration ResultsPM Model Calibration Results

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Evolution of Computer Technology Evolution of Computer Technology Based on CDFN Model RuntimeBased on CDFN Model Runtime

0:32:002:26:00Intel Pentium 4 2.8 GHz

1 GB RAM64 MB Video Memory (shared)

0:06:000:62:00AMD Turion 1.81 GHz

2 GB RAM256 MB Video Memory

0:08:000:42:00Intel Pentium M 2.13 GHz

2 GB RAM128 MB Video Memory (shared)

0:03:000:38:00Intel Core2 2 GHz

2 GB RAM512 MB Video Memory

Batch Run DisplayLaptop Specs

2003

2006

24


What’s Next?What’s Next?

METSIMHotspot Review with MITS Staff Freight Mobility Analysis

MOTSIMConstruction Stages AnalysesMaintenance of Traffic Plan Development

25


II--465 West Leg Reconstruction465 West Leg ReconstructionIndianapolis, IN for InDOTIndianapolis, IN for InDOT

Capacity Expansion with Modernization Simulation Applications

Interchange Design AlternativesInterchange Construction OptionsCS/MOT Plan After-Construction Corridor Performance

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1650/1100

I-70 EB to I-465 NB Traffic


xx

xx

27



Temporal Off-Ramp with Intersection

?

28



Airport Expwy WB Traffic

29



30



xx

31


32


Detour Routes2010 Plan Construction Stage 3

03/08-04/08

Ramp ClosuresEB 10th St to NB 465EB Washington to NB 465WB Washington to SB 465SB 465 to EB 10th StWB 10th St to SB 465EB Washington to SB 465

Rockville

Washington

10th St

33


10th St

Temporal Signal for WB 10th to NB 465

34


Lessons LearnedLessons Learned

Simulation is an excellent tool for system modeling and work zone mobility analysisSimulation requires multi-disciplined experienceSimulation lacks practice guidelinesSimulation needs institutional support

Michigan METSIM/MOTSIM Projects: Advances in … METSIM/MOTSIM Projects: Advances in Practice & I-465 West Leg Reconstruction: Work Zone Mobility Do Nam, Ph.D., P.E. T-Concepts Corp.

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