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Reliability


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.