bus service (the 9th largest system in the nation). The MTA's Commuter Bus system provides express coach service on longer routes connecting Washington D.C. and Baltimore to parts of Central and Southern MD as well as the Eastern Shore. The commuter rail service, known as MARC , operates three lines which all terminate at Washington Union Station and provide service to Baltimore's Penn and Camden stations, Perryville , Frederick , and Martinsburg, WV . In addition, many suburban counties operate their own local bus systems which connect to and complement the larger MTA and WMATA/Metro services. The Chesapeake and Delaware Canal is a 14 miles (23 km) canal on the Eastern Shore that connects the waters of the Delaware River with those of the Chesapeake Bay, and in particular with the Port of Baltimore, carrying 40 percent of the port's ship traffic. [ 108 ] Most of the business of government is conducted in Annapolis , the state capital . Virtually all state and county elections are held in even-numbered years not divisible by four, in which the President of the United States is not elected – this, as in other states, is intended to divide state and federal politics. The judicial branch of state government consists of one united District Court of Maryland that sits in every county and Baltimore City, as well as 24 Circuit Courts sitting in each County and Baltimore City, the latter being courts of general jurisdiction for all civil disputes over $30,000.00, all equitable