VERPAT Tutorial Performance Metrics

This section will describe the main performance metrics output from the multiple scenarios viewer and what they mean.

https://github.com/gregorbj/VisionEval/wiki/VERPAT-Modules-and-Outputs#module-outputs-18

Direct travel impacts

Daily vehicle trips

Daily transit trips

• Daily vehicle miles traveled
  • Light VMT for each household and place type
  • Regional VMT for heavy trucks and buses
• Peak travel speeds by facility class
  • VMT by speed bin and class (freeway, arterial, other)
  • Average speeds by class
• Vehicle hours of travel, delay
  • Vehicle hours of travel at free flow
  • Vehicle hours of travel in congestion

Energy impacts

Fuel consumption

• calculated from VMT and fuel economy, split into fuel types
• calculated for light vehicles, heavy trucks and buses

Environmental impacts

Greenhouse gas emissions

• Light vehicles calculated by household
• Regional heavy truck and transit emissions

Criteria emissions

• Emission rates from MOVES 2010a database
• Volatile organic compounds (VOC)
• Carbon monoxide (CO)
• Oxides of nitrogen (NOx)
• Sulfur dioxide (SO2)
• Particulate matter (PM)

Financial & economic impacts

Regional highway infrastructure costs

• FHWA Highway Economic Requirements System (HERS)
• Construction costs per lane mile in 2002 dollars

Regional transit infrastructure and operating costs

• National Transit Database (NTD)
• Net cost to supply an unlinked passenger trip by mode (2009)

Annual traveler cost - fuel

• $0.585 per mile in 2010 for auto users
• Includes variable costs (gas, oil, maintenance and tires) and fixed costs (insurance, license, registration, taxes, depreciation and finance charges)

Annual traveler cost - travel time

• Urban Mobility Report (TTI)
• Average travel delay for each metropolitan region
• Only includes auto users

Location & community impacts

Relative increase in jobs accessibility by auto

• Function of distribution of growth by place type
• Weighted by population and employment growth

Livability

• FTA criteria
• Use of alternative modes
  • transit vehicle trips
  • bike ownership
• Mixed use land use
  • mixed use place type
  • transit oriented development place type
• Household transportation expenditures as a function of budget
• Use of alternative modes by low income households

Equity impact

• Regional accessibility by income group

Community impacts

Public health impacts and costs

• Road safety impacts (daily VMT * 347 = annual VMT)

  • Fatal = 1.14 per 100 million VMT
  • Injury = 51.35 per 100 million VMT
  • Property damage = 133.95 per 100 million VMT

• Amount of walking (proxy for physical fitness)

• Emissions (PM, NOX, VOC)

Visualizing performance metrics

TODO: UPdate this for VERPAT!

VERPAT's charting is very easy to use and follows a template so each chart can be easily interpreted