Traffic Density Calculator

Calculate traffic density and Level of Service (LOS).

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Features

Density Calculation

Calculate vehicles per km/mile and per lane.

Level of Service

Estimate traffic conditions (LOS A-F) based on density.

Road Analysis

Analyze road capacity and performance.

About Traffic Density Calculator

The Traffic Density Calculator helps traffic engineers, planners, and students analyze the performance of road segments. By inputting the road length, number of vehicles, and number of lanes, the tool calculates the traffic density and estimates the Level of Service (LOS) according to standard traffic engineering principles. This helps in understanding congestion levels and road capacity utilization.

How to Use Traffic Density Calculator

  • 1
    Enter Road Length

    Input the length of the road segment in kilometers or miles.

  • 2
    Enter Vehicle Count

    Input the number of vehicles observed on the segment.

  • 3
    Select Lanes

    Choose the number of lanes for the road segment.

  • 4
    View Results

    See the calculated density and the estimated Level of Service (LOS).

Frequently Asked Questions

Traffic density is the number of vehicles occupying a unit length of a roadway, usually expressed as vehicles per kilometer or per mile.
LOS is a qualitative measure used to relate the quality of motor vehicle traffic service, graded from A (best) to F (worst) based on density and speed.
LOS is determined by comparing the calculated density (vehicles per lane) against standardized thresholds established in the Highway Capacity Manual (HCM).
LOS A, B, and C are generally considered good, where traffic flows freely. LOS D is acceptable in urban areas, while E and F represent congestion.
Occupancy is the percentage of time or space that vehicles take up on a road segment. It's a key indicator used to detect traffic jams.
While total density increases with more vehicles, density per lane (which defines LOS) can remain low if the traffic is spread across many lanes.