I would dearly love to have some EZ-Street switches, too.
In the meantime, I "fake it." I use O-27 swtiches that I connect using the O-27 to Superstreets transition pins (not the transition track pieces, just the replacement pins) - you can still find K-Line by Lionel bags of these replacement pins for about $6 and they do fit EZ-Streets - I installed some this weekend. They are about the only remaining Superstreets items my LHS has on their shelves now.
I have three "road turnouts" done this way. One is inside a tunnel (a road goes in one side on a mountain. Out of sight the EZ-Street transitions to the O-27 swich and then on the other side both routes transition back to EZ-Street and two different roads come out the other side). The second and third are in the bottom floor and top floor what looks like a three story parking garage-bus & trolley trolley terminal on the lowest level the road enters the parking garage entrance and loops around to come out the exit at that same level about two feet away (similar to if you had a building over the lower half of the trolley loop in your photo, AMCDave) - but inside the building an O-27 swtich inserted in that loop can divert a car or bus to a helix of D-21 EZ-Street that sprials up to the third floor where it exits the via the third switch onto a loop that circulates on the upper level of my layout. Hope I explained it well - I'm at work and can't take pictures.