Some commuters who stay late at the office may want to leave early Tuesday evening so they don't get stuck in traffic disruptions caused by security for President Obama's address to Congress.

This is advice for visitors unfamiliar with the transportation system in the nation's capital who plan to watch President Obama's swearing-in ceremony from the Mall or attend the parade up Pennsylvania Avenue.

For many, Inauguration Day planning means scouting out the best viewing spots, but others will simply be trying to reach a destination on time.