From SFBC:
Trickster Treat race and costume parade to benefit Up on Top, Entry $5 with great prizes for riders. More details:http://trickstertreat.blogspot.com/
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If AI's good enough for driverless cars, why not use it to keep trains safe too? Plus Caltrain wants you to take the train to the parade
Here are a few additional reflections and critiques specific to California's beleaguered high-speed rail project