The MnDOT Metro District Microsimulation Experience - PowerPoint PPT Presentation

1 / 12
About This Presentation
Title:

The MnDOT Metro District Microsimulation Experience

Description:

Graphical representation of freeway made modeling results easier to understand. ... Typically several designs developed for a freeway corridor. ... – PowerPoint PPT presentation

Number of Views:36
Avg rating:3.0/5.0
Slides: 13
Provided by: MET761
Category:

less

Transcript and Presenter's Notes

Title: The MnDOT Metro District Microsimulation Experience


1
The MnDOT Metro District Microsimulation
Experience
  • Kevin Sommers, PE
  • Minnesota Department of Transportation
  • Kevin.Sommers_at_DOT.state.mn.us
  • 651-234-7844

2
In the Beginning.
  • Models were developed according to user
    preferences.
  • Several items considered optional including model
    calibration.
  • Typical model was 1 time period of 60 minutes
    without origin-destination data.
  • Reported values based on a single run of model.

3
CORSIM Training Manual
  • Developed By Mn/DOT FHWA to
  • Clarify modeling process.
  • Produce reusable and verifiable products.
  • Meet Federal operational analysis requirements
    for the Interstate Access Request.

4
CORSIM Training Manual
  • Lists 21 items to be followed on all modeling
    projects.
  • Categories
  • Model Requirements
  • Data Requirements
  • Calibration Requirements
  • Quality Control Requirements

5
CORSIM Training Manual
  • Lists 11 required deliverables.
  • The most critical are
  • Link-Node Diagrams.
  • Lane Schematics.
  • QA/QC Sheets.
  • O-D Matrixes.
  • Balanced Traffic Demand Dataset.
  • MOE Tables.

6
The Freeway Lane Schematic
  • Graphical representation of freeway made modeling
    results easier to understand.
  • Color is used to highlight congested sections.

7
Design Selection
  • Typically several designs developed for a freeway
    corridor.
  • 2, 3, or 4 design options are tested using
    microsimulation to determine best option.
  • Design Options
  • TH 610 at I-94
  • Partial Build vs. Full Build
  • TH 169 at I-494
  • Ring Road System (3 designs)

8
Design Selection
  • Interchange Type
  • I-494 at Lyndale Ave.
  • Single Point vs. Tight Diamond
  • Traffic Control
  • TH 610 at Zachary Lane
  • Signals vs. Roundabouts
  • Collector-Distributor Roads
  • I-35E at CSAH 14
  • Connect SB entry ramps to CD Road or Interstate

9
Tweaking the Design
  • Sometimes the accepted design needs a little
    help.
  • Auxiliary Lanes
  • I-35 at CSAH 70
  • Auxiliary Lane Between CSAH 70 and CSAH 60
  • Turn Bays
  • TH 62 at I-494
  • Dual Left vs. Triple Left

10
Freeways Modeled To Date
  • 210 miles of freeway modeled including
  • 40 miles of I-35W
  • 31 miles of I-494
  • 28 miles of I-94
  • 16 miles of I-694
  • 14 miles of I-35E
  • 10 miles of I-35
  • 10 miles of I-394

11
Modeling Website
  • Advanced CORSIM Manual
  • Freeway Modeling Workshop Presentations
  • Modeling Resource Materials
  • FHWA Traffic Analysis Toolbox
  • Link to MnDOT Data Extraction Tools
  • Link to MnDOT Turning Movement Information

http//www.dot.state.mn.us/trafficeng/modeling/ind
ex.html
12
Thank You
Write a Comment
User Comments (0)
About PowerShow.com