Traffic Flow Calculator

Calculate flow rate, density, speed and level of service for roadway analysis

Traffic Volume (vehicles/hour)

Roadway Length

Average Speed

Number of Lanes

Peak Hour Analysis

Vehicle Mix (% of total volume)

Cars %

Trucks %

Buses %

Roadway Capacity (veh/hour)

Free Flow Speed

Show Speed-Density Graph

Adjust for Road Grade

Traffic Flow Results

Flow Rate

0

vehicles/hour

Density

0

vehicles/km

Average Speed

0

km/h

Level of Service (LOS)

A

Free Flow

Speed-Density Relationship

Analysis Summary

Enter your traffic data and click "Calculate" to see results.