stay off the tracks

Both passenger and freight trains run down the middle of 1st Street, at the bottom of Broadway, along side of Jack London Square.   Even though they are a common sight, this is the first time I've seen a warning on a locomotive.  Four other trains came by while I was down there, but this was the only one with a message.  This may be in response to several accidents and suicides on tracks around the bay this year.  It definitely made me want to take a step back.  This is my first time linking to Mellow Yellow Monday.  Don't know about mellow, but it definitely qualifies for yellow.