A five-year, $494 billion policy bill with the aim of enhancing funding and safety for freight and commuter programs was unveiled by House Democrats. The measure is that party’s legislation designed to update provisions in a 2015 highway law that expires this fall. The bill would seek to boost funding for highway and transit programs, as well as provide $4.6 billion for programs at the Federal Motor Carrier Safety Administration, according to background from the Transportation and Infrastructure Committee. The transportation panel’s leadership is expected to take up the bill June 17. Specific to the trucking industry, the measure would provide $250 million for building and enhancing parking facilities.