Buried in the King's highway?

I think there may have been an accident that had caused this sign to become uprooted from its spot! But as the bard himself once said:

I'll give my jewels for a set of beads,
My gorgeous palace for a hermitage,
My gay apparel for an almsman's gown,
My figured goblets for a dish of wood,
My sceptre for a palmer's walking staff,
My subjects for a pair of carved saints
And my large kingdom for a little grave,
A little little grave, an obscure grave;
Or I'll be buried in the king's highway...

From King Richard II (Act III, Scene III)