"Amtrak's Corridor Clipper at NYP" Amtrak's Amfleet I-based track geometry car "Corridor Clipper" sits on the rear of a Northeast Regional awaiting to the clear signal into one of the East River Tunnel Tubes while a NJT train pulls in on the adjacent track. Amtrak's Corridor Clipper (10002) & Catenary Inspection coach 10005 measure several aspects of the rail and catenary wire while moving at normal revenue speeds.