Performance Measures Used in the DFW Region

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Performance Measures Used in the DFW Region How
to Track and Report the M O Investment and
Results

• AMPO Management and Operations Work Group
• September 28-29, 2006

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Performance Measures Examples

• Regional
• Modeled and Observed
• Freeway
• Corridor
• Observed
• Freeway and Arterial

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Congestion A Growing Problem
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Blob Maps Parameters

• Percentage of Roadways Congested (LOS D, E or F)
• Model Output
• 0 to 30 Percent, not Congested
• 30 to 60 Percent, Moderately Congested
• Above 60 Percent, Severely Congested

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Congestion Map Parameters

• Observed Data
• Moderate or Intermittent Congestion (30 50 mph
  or 45 60 pcplpm)
• Severe Congestion (lt30 mph or gt 60 pcplpm)

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Relationship of Vehicle Density to Vehicle Speed
High
Speed of Vehicles
Low
Low
High
Density of Vehicles
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Thoroughfare Assessment Program

• Data Collection
• System Analysis (including emission calculations,
  NCTCOG)
• Recommend Improvements (timing plans and low-cost
  capital improvements)
• Implementation and Fine-Tuning
• After Assessment
• Documentation of Results

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Thoroughfare Assessment Program Performance
Measures

• Travel Time Modeled/Observed
• Delay Modeled/Observed
• Number of Stops - Modeled/Observed
• Average Speed Modeled/Observed
• Emissions (VOC and NOx) Modeled/ Post-Processed

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Truck Lane Pilot Study

• Observed ITS Data
• Speed, Volume and Lane Occupancy
• Average Speed by Direction by Phase
• Percent Change in Volumes by Phase
• Average Speed by Lane by Phase

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Next Steps for DFW

• Continue to Develop Inventory of P.M.
• Develop Regional Standard P.M.
• Continue to Track and Gather Data
• Develop a Regular Reporting Schedule
• Document Benefits of Projects