PITTSBURGH – (WPXI) – In preparation for President Donald Trump’s visit to Downtown Pittsburgh on Oct. 23, the city announced some security measures that will impact a lot of people. Several streets surrounding the David L. Lawrence Convention Center, where Trump will speak at the Shale Insight conference, will be closed Wednesday after the morning rush hour – that will likely cause heavy delays during the evening commute. The conference is open to the public. People can register for a free general admission pass, on a first-come, first-served, basis. Public Safety Director Wendell Hissrich recommended in a release that people who work downtown should consider working from home that day or leaving early. Pittsburgh Public Schools Superintendent Anthony Hamlet, Ed.D. announced that 12 schools will be closed Wednesday.