|High Street cap from the sky|
|High Street crossing the cap. Look, ma! No expressway!|
|Such as these slabs in this unfinished development.|
|Click it to see it in all its glory!|
|Oooh shiny. Clicky.|
* And usually it's not, from a technical perspective. Big Dig-type projects should usually be opposed on principle (pork-barrel automotive spending): what I am proposing here is a mitigation strategy when expressway closure has already wormed out of the picture, or for retrofitting of existing sunken expressways.
** Electricity for climate control and cooking as well as power; plumbing means fresh water and sewer hookups; fiber allows for phone, cable, and Internet.