There are four levels of reliability:
- Excellent: data are very good: we think they rapresent exactly what it is happening in this city
- Good : we think that our data are correct
- Poor quality : we are not sure that all our data are correct
- Very poor quality: we ask you to help us to improve our data
Update date: it is the last day we changed our data
We have these types:
- Stable: Rules have not changed formany years
- Changing: ZTL rules are often changing
- New : It is a new ZTL, so it doesn't have a history!!
- Seasonal; It changes season by season
- Cameras not working: cameras are now off.