Motorists will encounter periodic lane closures at Byberry and Warminster Roads on Monday, September 9, through Friday, September 13, from 9:00 AM to 3:00 PM, for ADA curb ramp installation, the Pennsylvania Department of Transportation (PennDOT) announced.  Motorists are advised to allow extra time when traveling through the work areas because slowdowns will occur. The contractor's schedule is dependent on the weather.