We still don’t know what the traffic patterns for President Obama’s departure in the morning will look like. That info is being kept secret for the time being because of security concerns. But it’s a pretty good bet that Westside traffic between Beverly Hills and Brentwood will be bad between 8 a.m. and 10 a.m. We’ll post more details in the morning if we get them in time to do anyone any good. For updates, follow @metroLAalerts on Twitter or go to metro.net and check out Service Alerts on the home page.