The old 900 and 901 made 911. 900 is the current 911 route
except that it doesn't go by Street 81 and turns into the Int. at
Ave 9 with 169 and 903. 901 is the 911E route except that it goes
into the Woodlands Center Road Terminal (or whatever you call
it)
To say it briefly, all the WL intratown routes were all combined
with 2 routes, one of them being the E route and the other is the
one without E