Proposed Congestion Management Performance Measures

 

 

Table 1
Congestion Metrics

MPO Goal Area

Recommended Metrics

Data Sources

Mobility and Reliability

  • Travel Time Index
  • Level of Travel Time Reliability
  • Truck Travel Time Reliability
  • Planning Time Index 
  • 95th Percentile Travel Time
  • Vehicle-Miles Traveled
  • Annual Average Daily Traffic
  • Bottlenecks 
  • PM3 Measure – Person Hours of Excessive Delay

 

  • NPMRDS
  • Probe Data Analytics
  • Replica HQ
  • MassDOT

MassDOT = Massachusetts Department of Transportation. MPO = Metropolitan Planning Organization. NPMRDS = National Performance Management Research Data Set. PM3 = Performance Measure Rule 3.


 

 

 

Table 2
Supporting Metrics

MPO Goal Area

Recommended Metrics

Data Sources

Safety 

  • Is the road included in the high-injury network?
  • Crash rate
  • Crash count by crash type
  • Vision Zero Plan
  • MassDOT IMPACT portal

Access and Connectivity 

  • Park-n-ride lot inventory for car parking and bike parking
  • Trip Origin-Destination land uses in corridor area
  • Future MPO work
  • Replica
  • Conveyal

Clean Air and Healthy Communities 

  • GHG emissions 
  • NOx and PM data from EJscreen

Resiliency 

  • Roads located in MC-FRM areas 
  • Roads included in evacuation route maps
  • EV charging stations in proximity to corridor
  • Massachusetts Coastal Flood Risk Model
  • Transportation Impact Mitigation program work

Equity

  • Exposure to poor air quality by race/income/limited English proficiency
  • Environmental Justice Index
  • User cost of delay
  • MPO Equity Dashboard
  • EJScreen
  • RITIS Probe Data Analytics

 

EV = electric vehicle. GHG = greenhouse gas. MassDOT = Massachusetts Department of Transportation. MC-FRM = Massachusetts Coastal Flood Risk Model. MPO = Metropolitan Planning Organization. NOx = nitrogen oxides. PM = particulate matter. RITIS = Regional Integrated Transportation Information System.