Very Strange Signals in Historic Photo

[Brian556]

I cant even tell what I am looking at in the photo. I can see pedestrian signals, but no standard vehicular heads. There is something on the pole that I think could be some kind of experimental space-age vehicular signal. I was thinking they could be street lights. but considering that I do not see any standard vehicular signal heads in the photo, my conclusion is that they have to be an odd type of signal

https://www.facebook.com/photo.php?fbid=2224634947549344&set=gm.2060076180718044&type=3&theater&ifg=1

[TEG24601]

It appears to be the intersection of two one-way streets (coming toward the camera), with horizontal lights mounted from the pole (and we are seeing the back side of both).  One of the comments shows a newer photo, with a similar setup.  The street from the Left now appears to be the Left Field Entrance to Minute Maid Park.