The rule only applies to certain days.In Prague you can travel by public transport free of charge. But only on certain days, reports the Chronicle.info with reference on Vacation.
Public transport in the Czech capital will be free for passengers in case of exceeding the norms of air pollution. This measure was part of a campaign to combat smog. Previously, the government had intended to restrict the traffic in those days. However, this measure is found to be ineffective.
Residents and guests will receive information about the level of pollution with transport applications, special sites and pages in social networks.