Road costs are astonishing. I remember seeing a single traffic light arm cost $2... | Hacker News

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xx511134bz on Sept 26, 2021 | parent | context | favorite | on: Tesla offers ‘Full Self-Driving’ option, prompting...

Road costs are astonishing. I remember seeing a single traffic light arm cost $250k.

NoblePublius on Sept 26, 2021 [–]

It took 400 days to construct the Golden Gate Bridge in 1933. It took six years to build a new offramp for it in 2000.

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