Webmaster and editor of MDRoads.com (when I get around to it). Editing locally in the eastern half of Baltimore County, Baltimore City and Harford County. Also active in parts of Anne Arundel and Carroll Counties in MD, plus York County, PA.
To do list in Central Maryland:
State Routes: add unsigned_ref=* tags for routes, and note strange starts/stops in state maintenance.
MTA Bus: Needs to be added in all areas. We have better coverage of the historic streetcar lines than today's bus lines.
Waterfront 'shore shack' driveways: cleanup of TIGER to reflect what is displayed (or not) with signage.
Baltimore City: oneways and traffic signage rules.
Anne Arundel County (from Brooklyn Park down to Glen Burnie): Numbered Alleys and cleanup of rough TIGER data