What is the formula for average daily traffic volume?

Formula for Average Daily Traffic Volume

The average daily traffic volume (ADTV) is a key measure of the amount of traffic on a road. It is calculated by summing the total two-way traffic volume at a specific road location over a year and dividing this sum by 365.

Formula:

ADTV = (Total annual traffic volume) / 365

Where:

• ADTV is the average daily traffic volume
• Total annual traffic volume is the sum of the total two-way traffic volume at a specific road location over a year

Example:

If a road has a total annual traffic volume of 100,000 vehicles, then the ADTV is:

ADTV = 100,000 / 365 = 274 vehicles per day

The ADTV is a useful measure for planning and designing roads. It can be used to estimate the traffic volume on a particular road, which is important for determining the appropriate lane widths, traffic signal timing, and other design features. The ADTV can also be used to compare the traffic volumes on different roads, which is useful for identifying areas of congestion and planning for future transportation improvements.