In USA for example, road design AND vehicle design is directly linked and beholden to NHSTA regulations and policies.
Infrastructure (IE State route roads) are ever trending towards wider lanes and more gentle shoulder. This is precisely due to vehicle industry requirements requiring more vehicle safety features (and thus width and length), height, and shoulder level clearance @ windows.
All these infrastructure and endpoint changes are driven "organically" by the USA trend towards SUVs, but mainly driven by insurance requirements. Insurance and gov't "make out" on safer/roads/vehicles due to (perceivabally) less accidents and road maintenance.
I can't speak to airplanes, but I imagine the fact that far, far, far more people are able to fly today than even 25 years ago should show that the infrastructure has drastically improved.
In USA for example, road design AND vehicle design is directly linked and beholden to NHSTA regulations and policies.
Infrastructure (IE State route roads) are ever trending towards wider lanes and more gentle shoulder. This is precisely due to vehicle industry requirements requiring more vehicle safety features (and thus width and length), height, and shoulder level clearance @ windows.
All these infrastructure and endpoint changes are driven "organically" by the USA trend towards SUVs, but mainly driven by insurance requirements. Insurance and gov't "make out" on safer/roads/vehicles due to (perceivabally) less accidents and road maintenance.
I can't speak to airplanes, but I imagine the fact that far, far, far more people are able to fly today than even 25 years ago should show that the infrastructure has drastically improved.