PRI's The World Published by PRI's The World Those 'flapping' Solari boards at US train stations are leaving the terminal Listen Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/663010/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend Amtrak officials are planning to replace the analog Solari board in Philadelphia's 30th Street Station with a digital one. It's one of the last remaining terminals in the United States with the old-school board.