Busiest transit hub in U.S. rocked by delays as infrastructure breakdowns hit during heat wave Yahoo! VoicesAmtrak service between Philly and Conn. resumes; riders should expect ‘significant delays’ WPVI-TVNJ Transit pledges to hold Amtrak’s ‘feet to the fire’ after commuting meltdowns GothamistAmtrak, NJ Transit service resumes with ‘significant delays’ after power outage, overhead wire issues News 12 New Jersey