|
|terminus_b= in Laurel |counties=Montgomery, Prince George's |previous_type=MD |previous_route=198 |next_type=MD |next_route=201 }} Maryland Route 200 (MD 200), more commonly known as the Intercounty Connector or ICC, is a tolled freeway in Maryland which connects Gaithersburg in Montgomery County and Laurel in Prince George's County. The highway was originally proposed in the 1960s as part of the Washington Outer Beltway. While other parts of the Outer Beltway were canceled, the ICC and the Fairfax County Parkway remained on master plans. The road's long history as an unbuilt proposed road stems from the controversy that has surrounded it over the years, including the cost which exceeded $2.56 billion. Proponents of the highway claimed that it would improve the flow of interregional traffic, relieve traffic congestion on local roads, spur economic development, and enhance access to Baltimore-Washington International Airport. Opponents of the highway claimed that the road would instead harm significant traffic flow characteristics, negatively harm the environment, and disrupt established communities through which it passes. Fulfilling a 2002 campaign promise, Maryland Governor Robert Ehrlich pushed to begin construction of the road and conducted a formal groundbreaking in October 2006. With additional support from his successor, Governor Martin O'Malley, construction began on November 13, 2007. The first segment, from I-370 to Maryland Route 28, opened on February 23, 2011, while the extension to Interstate 95 opened on November 22, 2011. The final segment to US 1 opened on November 7, 2014. ==Route description== MD 200 begins at a trumpet interchange with Interstate 370 (I-370) near Gaithersburg in Montgomery County, between its MD 355 and Shady Grove Road interchanges as a six-lane freeway. Several new ramps and collector-distributor roads were built between this interchange and MD 355. MD 200 continues northeast from there through Redland Station, turning east to pass over Shady Grove Road, and then under Redland Road, paralleling Mill Creek. This is the location of the eastbound toll gantry. MD 200 shortly curves to the east on the approach to the six-lane overpass for Olde Mill Run, which was built wide enough for a fourth lane in the eastbound direction. The Olde Mill Run overpass is the only section of MD 200 with full shoulders on each side. After the overpass, MD 200 turns southeast, passing under Needwood Road, before turning sharply back to the east as it passes under MD 115 (Muncaster Mill Road). The route, now running slightly to the southeast begins the approach to MD 97 (Georgia Avenue). MD 200 turns more eastward, running towards North Branch Stream Valley Park, and passing over the north branch of Rock Creek and a second stream over a bridge. This is the location of the westbound toll gantry. The route enters the Norbeck area, and passes under Emory Lane. Just east of there is where a hybrid cloverleaf interchange with MD 97 (Georgia Avenue) is located. A park-and-ride may be built at this interchange. When the road opened in February 2011, it temporarily came to an end at a traffic light located just east of MD 97 at MD 28 (Norbeck Road).〔 The route then curves southeastward, passing under MD 28 and Longmead Crossing Drive, running parallel to Wintergate Drive/Park Vista Drive. MD 200 then curves slightly more eastward toward Aspen Hill, where the freeway intersects MD 182 (Layhill Road), shortly after entering the Northwest Branch Recreational Park. The route travels though the park for a stretch, bridging the Northwest Branch three times (the second bridge also carries MD 200 over Bonifant Road), exits the park, and then turns eastward, passing under Notley Road. MD 200 then turns slightly to the northeast near Colesville and meets MD 650 at a single-point urban interchange. MD 200 then continues eastward, passes through Upper Paint Branch Park and bridges several creeks, including the namesake Paint Branch, and passes between several neighborhoods upon exiting the park. The route then passes under Old Columbia Pike with no access to this local road. Just beyond, MD 200 reaches a large interchange with US 29, combining cloverleaf and stack elements. This interchange also adds connections to Fairland Road with both MD 200 and US 29. The route continues eastward, featuring a partial interchange with Briggs Chaney Road (westbound exit and eastbound entrance), and then, just after crossing the border into Prince George's County, it passes over the Little Paint Branch just south of the Fairland Recreational Park. The route then passes under Old Gunpowder Road. The route then enters Calverton, where the expansive interchange with I-95 is located. The interchange, marked as Exit 31 on I-95, is mostly a cloverleaf hybrid, and features several collector-distributor roads built along I-95, stretching from Old Gunpowder Road south of the interchange to MD 198 north of it. The community of Konterra is planned for construction near this interchange. Beyond I-95, MD 200 narrows to four lanes. MD 200 curves sharply, first to the south then to the east, and meets a diamond-interchange providing access to Konterra Drive. MD 200 then turns gradually to the southeast and ends at a traffic-signal at US 1 (Baltimore Avenue) in Beltsville. MD 200 is a part of the main National Highway System for its entire length.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Maryland Route 200」の詳細全文を読む スポンサード リンク
|