Revolutionary in it’s day.

1960s saw the rise of precast concrete buildings and structures including street furniture, such as this bollard at the 1960s Town Hall. Bollards are used to effectively demarcate areas or zones, they're not purely decorative. In this case there's the road kerb and rough surface too, but that's not always the situation.
Concrete street furniture was introduced as it was considered more durable, amenable to simple design, and would need less maintenance than cast iron or wood of the previous ages; in many developments bollards have gone full circle now - they're more lightweight and less intrusive, but aren't well maintained, or painted.
Other items of modern street furniture are often a mix of materials, not uniquely concrete nowadays, although there's still a place for concrete only in my view. Changes in manufacturing technology from the 1980s onwards has led to a better range of reinforced precast concrete product.
Many view the 1960s as a brutalist period of architecture; it's too harsh I feel.
Every so often I see a building or item of street furniture, made of reinforced precast concrete, that's iconic and definitely of the period.