Share the Road on this Happy Hot Tuesday

We’re under a Spare the Air Alert as the temperature exceeds 100°F / 37°C on this fine autumn day here in San Jose, California. The Bay Area Air Quality Management District declared another Spare the Air for the San Francisco Bay Area for tomorrow, Wednesday, September 9, 2015.

Now, let’s talk about R4-11, aka the “Bicycles May Use Full Lane” sign.

Bicycles May Use Full Lane