Why there are different map versions? Which one should I use?

We decided to add more map versions in Traffic Stats since the road network has changed over the past years, so the data for different date ranges could be analyzed on the same road network, which allows the data comparison.

The map updates are done quarterly, which means the recent data can be analysed on the recent map.

The application suggests the best map version for the selected date range (eg. May 2020, the closest road network is map version 2020.03). However, it is you who defines which road network suits more for your project. So, if you want to analyse the data from May 2020, you can also use the older map like 2018.03 and the data will still be map matched.