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Traffic Flow
Road capacity, speed and flow from free-flow speed and jam density.
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About this test
Enter speeds and densities.
How it's calculated
- q = vf·k(1 − k/kj)
Results are calculated from the values you enter using standard formulas. Download the PDF to keep a record. For certified testing, design or construction, talk to our engineers.
Cite this tool
Kataria Engineering & Consultancy Services (2026). Traffic Flow [online calculator]. https://katariaengineering.com/tools/traffic-flow-greenshields.html
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