what is the format of the routing instructions?

[["Head", "ca", 248, 0, 127, "0", "NE", 22.5], ["Turn sharp right", "ab", 222, 1, 114, "1", "NE", 22.5], ["Turn sharp right", "bc", 0, 2, 0, "2", "NE", 22.5]]

it seems all steps always include "NE", 22.5 at the end?