… … Dear Gabby, How Do You Plan Detours? Gabby is here to share and answer the hundreds of questions you send to her every day. She's your source for the inside scoop on everything you ever needed to know about mastering the art of public transit. … eye out to replace any signs that get taken down. (It happens.) For big detours with lots of advance notice, like DTLA May Day events, we might post Rider Alerts on board our buses (right behind the operator’s seat). All of our detours are listed …