The chart above shows the miles of heavy rail subway track within each EU and US region.  The Western EU has more miles of track than the entire US combined.

The chart above shows the kilometers of heavy rail subway track within each EU region.  The Western EU has more kilometers of subway track than all other regions combined.

The chart above shows the miles of heavy rail subway track within each US region.  The Northeast has more miles of subway track than all other regions combined.

The chart above shows the miles of heavy rail subway track within each EU and US state.  The EU dominates over the US in this metric.  Not only do EU states have more track laid, but more EU states have subway systems than US states even though there are far more US states.

The chart above shows the kilometers of heavy rail subway track within each state.  Over half the EU states have a heavy rail system.

The chart above shows the miles of heavy rail subway track within each state.  Only nine of the fifty states have subway systems; the District of Columbia also has a subway system but is not included in the list as it is not a state.

The chart above shows the number of annual riders for every kilometer of track in each state.  One million annual riders is the equivalent of 2,740 riders a day.  So the Netherlands has 3,808 daily riders for every kilometer of track while Hungary has 29,452.