Updated roadsigns placefile to accompany updated highway signs. Assuming you're using the original highways placefile, unzip this and overwrite Roadsignsnew120509 wherever it is on your device. Not an all-encompassing replacement, it does tweak some Texas stuff and the PA Turnpike/I-95/I-276/I-295 rearrangements around Philly and Trenton. Note that thresholds have been changed so not so many US Highways are displayed at certain map projections.
