D125: Cycles, Bikes and Tracks

Took the  scenic route to Silicon Valley today.  I passed this sign along the way.  It was near a railroad crossing.  I think it means motorcycle drivers and cyclist watch for oncoming trains or don't stop on the train tracks. 

 

Manual:  Read page 129 and 130 "Adjustment of Printing Effects".

Images:  I viewed images of  San Francisco base  food photographer Sheri Giblin