I don’t know if this counts as “mildly” infuriating, I’d be freaking OUT with a traffic jam that long, especially if I had somewhere to be at a certain time!
Any large city period.
Seriously, I live in The Netherlands which is the size of a post stamp, even we cannot make public transport work (especially outside of the larger cities), thus we also have to deal with traffic jams. All the comments of the "Fuck Cars" community are quite ignorant on the issue that public transport can only work efficiently in cities, not to connect rural areas to those cities.