Traffic impact studies evaluate traffic impacts and mitigation strategies for a particular development or project.
Local transport planning develops municipal and neighborhood transport plans.
Regional transportation planning develops plans for a metropolitan region.
State, provincial and national transportation planning develops plans for a large jurisdiction, to be implemented by a transportation agency.
Strategic transportation plans develop long-range plans, typically 20-40 years into the future.
Transportation improvement plans (TIPs) or action plans identify specific projects and programs to be implemented within a few years.
Corridor transportation plans identify projects and programs to be implemented on a specific corridor, such as along a particular highway, bridge or route.
Mode- or area-specific transport plans identify ways to improve a particular mode (walking, cycling, public transit, etc.) or area (a campus, downtown, industrial park, etc.).