: Focused on long-term goals and societal needs. Planners analyze demographic trends and land use to forecast where new roads or transit lines will be needed in 10 to 20 years. Their work is grounded in the "Three C's": Comprehensive (all modes), Cooperative (stakeholder involvement), and Continuing (periodic updates).
: A specialized subfield of civil engineering focused on the safe and efficient movement of people and goods on existing infrastructure. Engineers design the specific "hardware" of the road—such as signal timing, signs, and pavement markings—to optimize flow and reduce accidents. Key Principles of Practice Transport Planning and Traffic Engineering
While often used interchangeably, these fields focus on different scales and stages of the transportation lifecycle: : Focused on long-term goals and societal needs