The key to developing any commercial Floating Vehicle Data system is to determine the number of vehicles required to give a high quality service. ITIS has developed the concept of the Floating Vehicle Data Unit based on vehicle mileage travelled and driving patterns.

ITIS data shows that if an average driver has a value of 1 FVD® unit, a business driver has a value of 3 FVD® units and a truck/coach has a value of 30 FVD® units. A mix of the above results in high quality data from a sample size significantly smaller than previous predictions due to the focus on data collection on the busiest roads at the busiest times.

The combined fleet within the ITIS FVD® system is approximately 50,000 vehicles. To achieve this level ITIS targeted a number of high profile FVD® probe fleets, including:

In addition to the above fleets ITIS signed data supply contracts with large telematics companies that track vehicles for logistics and fleet management purposes. ITIS also targets probe vehicles that may be required to increase data quality in a more localised urban or inter-urban area, such as a local haulage or taxi operators.