Trash receptacles such as this are very common in Paris. The words on the bag translate as Vigilance and Cleanliness. The bag is transparent so anything discarded is still visible. London, presumably because they have more recently experienced terrorist bombings, has no (or almost no) rubbish containers.

Paris uses painted metal barricades…

…while London uses these open-structured plastic segments to block off areas for construction. Other than path dependence (that’s just how they’ve always done it), why?