As seen on Battery, which is basically an on-ramp for the I-80:
Of course back in ’49, you know, 1849, some people were still calling Kearny Street La Calle de la Fundacion – it was the start of the grid system of streets we know today.
Anyway, not much has changed since the founding of the SFPD 166 years ago – a time-traveling gold miner from back then would have no problem understanding this aspect of The Future:
Click to expand
No these aren’t brand-new ShotSpotter gunfire detectors, as I initially thought.
They’re telemetry transceivers to give MUNI vehicles signal priority, per the Richmond District Blog:
Now here’s a shot from 2011 on Scott Street in the Western Addition – I don’t know what all this stuff is:
I don’t think any of them have anything to do with signal priority…