… cities, so we also depend on our bus operators to tell us whenever their routes are blocked or they see signs for upcoming events or construction. And sometimes we learn about closures from awesome customers like you. You rock! When we find out … before an event starts and long after it ends. With crashes or construction, there may not even be a fixed end time. Some events, like marches, are especially complicated. Marches don’t stay in one place, and they can be unpredictable. Once we … 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 on …