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Understanding and Using New Data Sources to Address Urban and Metropolitan Freight Challenges

National Cooperative Freight Research Program (NCFRP) Project 49

  • Urban and Metropolitan Challenges
    • Congestion
    • Last-Mile Access
    • Final 50-feet Access
    • Land Use
    • Truck Parking
    • Case Studies
  • Emerging Data Sources
    • GNSS/GPS
    • Radar
    • Wireless Address Matching
    • Administrative Records
    • Cellular/GSM
    • Induction Loops
    • LIDAR
    • Computer Vision
  • Analytical Approaches
    • Speed
    • Location
    • Re-identification
    • Classification
  • Stewardship Principles
    • Transparency and Openness
    • Purpose Specification
    • Data Minimization
    • Data Quality and Accuracy
    • Accountability
    • Security
    • Data Management
  • Resources
    • Source Use Concept Map
    • Case Studies
    • Previous NCFRP Projects
    • Glossary
    • Sources Cited

Axle

October 11, 2018 by Debbie Murillo

The central shaft or rod that connects the vehicles’ wheels. In vehicle classification studies, axle number represents the number of pairs of wheels on a vehicle. FHWA categorizes the roadway users in 13 vehicle classes.

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