For the last ten years everybody has been printing money like crazy, the banks literally don't know what to do with all the cash, you're being paid for borrowing some of it.

Ever been to Connecticut? I-84 is still constantly in rough condition, even as property and income taxes climb.

As a Korean who visited LA this summer, I was shocked to see how unmaintained the roads were, especially the highways. (There were cracks and debris all over the place)

I remember thinking the same back in 2005, which was the first time I'd driven in the US. Cracks and potholes all over the place. At the time I'd assumed it was because California was basically bankrupt (maybe it still is), but slightly shocking that it's still the case.

I suddenly felt like I understood why American cars have such soft suspension. The roads were notably worse than in the UK, and by a wide margin: no way I'd want to drive a car with a sportier setup there.

What's depressing is that since 2010 there's been a progressive degradation in the state of our roads. In Cambridgeshire the roads are now in a terrible state: cracks, fissures, potholes, road markings barely visible.

You can blame public spending cuts for this, and no doubt there's truth in that statement, but there are plenty of road infrastructure projects happening. For example: the (admittedly decades overdue) A14 upgrade, recently completed Ely southern bypass, various smart motorway projects (M1 and M4 spring immediately to mind, as well as recently completed work on M3).

This is all well and good, but I would far rather see some of this money diverted to the basics of a safe road network: i.e., ensuring the roads we already have are in good condition. I would particularly like to see funds being used for smart motorways, for which serious safety concerns have emerged, diverted in this way.

'Smart motorway' is an umbrella term for various traffic control schemes used on motorways since the 90s. The version deemed unsuitable is dynamic hard shoulder running (called 'managed motorway' at inception), first used on the M42 from 2006 on.

All new projects in England since 2013 have used All Lane Running (an alternative to widening, where the HS is permanently converted into a traffic lane). This format is not being killed off.

The A14 Huntingdon Bypass was supposed to open as a smart motorway (A14(M)) but the legislation hasn't passed soon enough, so it will open as an all-purpose road with motorway-style restrictions and smart tech.

My home town agreed a very long - multiple decades - private contract for road maintenance... at least ten year ago? Unsurprisingly, the private company puts in the minimum to service the contract and the roads have gone to pot.

Interestingly it might just have to do with the age of the roads. When I was living in Baltimore in the late 80s my fellow Californians complained how bad the roads were in Maryland compared to LA. Now 30 years later the roads in California are bad too. IIUC much of Korea's roads are new-ish so it's possible in 30 years they'll be in the same state. .... or not of course. Maybe Korea is just better at maintaining roads.

It is worth noting that the US has several orders of magnitude more roads than Korea does to maintain.

... but that doesn't excuse the under-spending on them, because we're also under-spending.

Most people in the U.S. have never been to a country with an actual transportation system. They can't imagine that it could be any different and will get angry if you point out to them.

Part of the issue is that wealthier people are self segregating themselves into their own separate towns, do that their property tax dollars don’t have to go to maintain the roads that everyone else drives on.

Not at all! Every year the US and it’s various state and local governments collect trillions... and then proceed to spend it on some other crap.

Are you sure it isn't endless spending on new roads and destruction of tax base by expanding the suburbs?