Freight Efficiency Index Dashboard
Component 1: Intermodal
- Approximate 43 miles of intermodal roadways (ports and intermodal facilities) are included in this measure, more than half are Functional Class Principle Arterial or above (e.g. design speed 35-55mph).
- Several GIS/SAS steps select data for the highway segments at each location for the corresponding quarter.
- The resulting average speeds are placed in a table, and the key indicator is an average speed representing all locations:
- Specifically, the quarterly measurement is the average of the average speed at 30 facilities.
Component 2: Bottleneck (Key Indicator for Congestion Intensity)
- 30 bottleneck/interchange locations are utilized; the locations were identified by FHWA Office of Policy through its 2008 Freight Bottleneck Assessment.
- Several GIS/SAS steps select data for the highway segments at each location for the corresponding quarter.
- A measure for weekday AM/PM peak and nonpeak average speed is calculated.
- The nonpeak average speed is divided by the peak average speed, producing a nonpeak/peak ratio – this number is the key indicator.
- The higher the number, the more variable the speed, and thus the greater the intensity of the congested time periods.
- Example 1: (55 MPH nonpeak)/ (55 MPH peak) = a measure of 1. There is no variability.
- Example 2: (55 MPH nonpeak)/ (20 MPH peak) = a measure of 2.75. This is a high measure indicating a strong variation between peak and nonpeak.
- The higher the number, the more variable the speed, and thus the greater the intensity of the congested time periods.
- For the final dashboard, the average of the 30 bottleneck nonpeak/peak measurements is calculated quarterly.
Component 3: Border Crossing
- 15 U.S./Canada border crossings are measured for this component. At those crossings, an inbound and outbound monthly minutes per mile measurement is produced. These measures are produced using a tool developed by ATRI and FHWA in 2010.
- The minutes per mile is created for each month and for each directional crossing.
- An average is produced for each month.
- For the quarter, the three monthly measurements are averaged for a single quarterly minutes per mile measurement.
- On the FEI scale, higher minutes per mile numbers result in lower scoring.
Component 4: Urban Mobility
- Data processing for this measurement is performed within the original space-mean-speed calculation tool developed by ATRI and FHWA in roughly three stages from 2002-2006.
- The SQL database that is populated by this tool is queried during specific time periods across each quarter.
- Several GIS steps select data for the highway segments at each location for the corresponding quarter.
- For the FEI dashboard, the key measurement used is the average of 14 peak weekday average speeds representing each of the following locations
- Atlanta-Sandy Springs-Marietta, GA
- Boston-Cambridge-Quincy, MA-NH
- Chicago-Naperville-Joliet, IL-IN-WI
- Dallas-Fort Worth-Arlington, TX
- Detroit-Warren-Livonia, MI
- Houston-Baytown-Sugar Land, TX
- Los Angeles-Long Beach-Santa Ana, CA
- Miami-Fort Lauderdale-Miami Beach, FL
- New York-Northern New Jersey-Long Island, NY-NJ-PA
- Philadelphia-Camden-Wilmington, PA-NJ-DE-MD
- Phoenix-Mesa-Scottsdale, AZ
- San Francisco-Oakland-Fremont, CA
- Seattle-Tacoma-Bellevue, WA
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- The average of the average speeds is next converted to minutes per mile (60/X MPH)
- 60/60 MPH would be 1 minute per mile.
- 60/45 MPH would be 1.33 minutes per mile.
- On the FEI scale, higher minutes per mile numbers result in lower scoring.
Aggregate Figure
- For the final FEI measurement, each of the four final measures is converted to a figure between 1 and 100 based on how that number relates to the 3 year worst and best scores.
- The calculation is: =(max – current quarter) * 100/(max - min)
- The four numbers are averaged after they are converted to the 1-100 scale resulting in the final measurement.