It’s worth noting that this isn’t necessarily that big of an issue for China. A lot of their HSR is grade-separated and not infrequently up on viaducts. It’s no

It’s worth noting that this isn’t necessarily that big of an issue for China. A lot of their HSR is grade-separated and not infrequently up on viaducts. It’s not a particularly big step in my mind to enclosing that.