In other business Thursday, the commissioners discussed the Carroll County Transit Development Program (TDP), which is undergoing a progress update. The TDP serves as a guide that includes goals and possible changes to the transportation system over a five-year period, said transportation grants coordinator Stacey Nash. It is required by the Maryland Transportation Administration, said Lib Rood of KFH Group, the company responsible for compiling the TDP for the county. As part of the progress update, users of Carroll transit, the general public, employers, and stakeholders were surveyed. In general, responses indicated a desire for more frequent service and extended hours, Rood said.