Ed. Note: This is a cross-post from Fast Lane , Secretary of Transportation Ray LaHood's official blog Last Friday afternoon, President Obama signed legislation  that will put thousands of construction workers on jobsites across the country and supports our commitment to restoring America's infrastructure. This transportation bill, Moving Ahead for Progress in the 21st Century ( MAP-21 ), will sustain our Highway Trust Fund and provide states and communities with two years of steady funding to build needed roads, bridges, and transit systems. It also builds on DOT's efforts to improve safety across all forms of transportation and to make progress on transportation alternatives as we have done during the last three years. President Barack Obama signs HR 4348, the Transportation and Student Loan Interest Rate bill during a ceremony in the East Room of the White House. June 7, 2012. (Official White House Photo by Lawrence Jackson) read more