On a whim I re-counted the number of "controlled intersections", i.e., stop signs and traffic lights, along my route this morning. And the answer is:

68

For you locals the route this a.m. was Hellyer to Silver Creek to Coyote Rd to Hellyer to Senter to 10th to Hedding to 1st to Rio Robles to Tasman. This is about a 20 mile route so the average was over 3 lights/signs per mile. Not surprisingly, many of the lights are bunched together in San Jose. There's one stretch of "singlet" (one-way route cutting through San Jose) that has ten lights; basically one per block.

I find that 4 lights make up the bulk of time potentially stopped. I can spend minutes waiting for them if I hit them early in the cycle. (Senter at Capitol; Senter/Tully; First/Trimble; First/Montague)

Luckily, I had very good luck with all the lights this morning and trimmed about 7 mins from the commute as a result.