New Philadelphia, Ohio - Motorists who travel along West High Avenue in New Philadelphia can expect delays on Friday, November 2nd, as crews install new traffic signals. Traffic will be restricted from 9 a.m. to 1 p.m. at the U.S. 250 westbound off-ramp and the I-77 north and southbound on/off ramp. The Ohio Department of Transportation advises motorists to plan ahead to avoid delays.