|
|direction_b=East |terminus_b= in Daytona Beach |counties=Hillsborough, Polk, Osceola, Orange, Seminole, Volusia |previous_type=SR |previous_route=3 |next_type=SR |next_route=4 |browse=}} Interstate 4 (I-4) is a intrastate Interstate Highway in the U.S. state of Florida, along a southwest–northeast axis from I-275 in Tampa to I-95 at Daytona Beach. The entirety of I-4 overlaps nearly the entirety of State Road 400 (SR 400), which extends as a contiguous, signed surface street in Daytona Beach from I-95 to US Highway 1 (US 1, also SR 5). I-4 has no auxiliary Interstate Highway spurs or loops; however, it intersects several tolled expressways—designated as state roads—that serve as spur and partial loop routes in the Orlando metropolitan area, which (unlike most major U.S. cities) lacks any auxiliary interstate highways. The first segment of I-4 opened to traffic in 1959 and the highway was largely completed by the late 1960s. I-4's original western terminus was in St. Petersburg, but in 1971 the highway segment from St. Petersburg to its present terminus at I-275 was redesignated as part of I-75 before being redesignated again as I-275. The median of I-4 between Tampa and Orlando was the planned route of a high-speed rail line between these cities, which was cancelled in 2011. The "I-4 corridor" is a strategic region in politics, due to the large number of undecided voters in a large swing state. ==Route description== I-4 maintains a diagonal, northeast–southwest route for much of its length, although it is signed east–west. The highway's western terminus is with an interchange with Interstate 275—known as "Malfunction Junction"— near downtown Tampa and is the starting point for mile markers and exit numbers (which are mileage-based). Just east of Malfunction Junction, I-4 passes along the north side of Tampa's Ybor City district, where a mile-long connector links to the Lee Roy Selmon Expressway (SR 618) and Port Tampa Bay. I-4 continues east past the Florida State Fairgrounds towards a turbine interchange (uncommon in the U.S.) with Interstate 75. After passing near the eastern suburbs of Hillsborough County—including Brandon and Plant City—it enters Polk County, where I-4 crosses along the north side of Lakeland. The Polk Parkway (SR 570) forms a semi-loop through Lakeland's southern suburbs and returns to I-4 at the Florida Polytechnic University campus, near Polk City; it does not serve as a bypass route for I-4 traffic. Just after the western junction with the Polk Parkway, I-4 turns from an eastward to a northeastward heading. Between SR 33 (at exit 38) and US 27, I-4 passes through the fog-prone Green Swamp, although the landscape beside the highway is mostly forest as opposed to water-logged swampland. Ten variable-message signs and dozens of cameras & vehicle detection systems monitor this stretch of mostly-rural highway as a result of several large, deadly pile-ups caused by dense fog. At mile 57, I-4 enters Osceola County and soon thereafter intersects the Orlando area's beltways: the incomplete Western Expressway (SR 429) on the western side and the Central Florida GreeneWay (SR 417) which rounds the eastern side before returning to I-4 in Sanford. Additionally, an exit to World Drive (signed as just "Disney World") runs north as a limited-access highway into the Walt Disney World Resort and an electric pylon in the shape of Mickey Mouse can be seen on the southwest corner of the intersection. The single GreeneWay/World Drive exit (Exit 62) also marks an abrupt change from rural to suburban/urban landscape. The highway passes beside Celebration and Kissimmee on the east side and Walt Disney World Resort (not visible) on the west side. For the next , I-4 passes through the Orlando metropolitan area, where the highway forms the main north-south artery. It enters Orange County, passes close to the three major theme parks—Disney World, SeaWorld Orlando, & Universal Orlando—and intersects all of the area's major toll roads, including the Beachline Expressway (SR 528) and Florida's Turnpike. Orlando's main tourist strip—International Drive—runs parallel and no more than 1.5 mi (2 km) from I-4 between Kissimmee and Florida's Turnpike. Between Michigan St. and Kaley Ave. (about mile 81), I-4 changes to a north heading past downtown Orlando and its northern suburbs. A section of I-4 from west of Kirkman Road to east of SR 434 (miles 75-96) is currently undergoing a $2.3 billion reconstruction, expected to be completed in 2021, that replaces most bridges, changes the configuration of many intersections, and adds two express toll lanes—named ''4 Express''—in each direction (details in the I-4 Ultimate section). After passing along the west side of Downtown Orlando, I-4 continues through the city's northern suburbs—including Winter Park, Maitland, Altamonte Springs, and Sanford. Around mile 91, I-4 enters Seminole County and soon thereafter shifts to a northeast heading. The Seminole Expressway (SR 417), after passing around the east side of the Orlando metropolitan area, has its northern terminus (exit 101B) at I-4 in Sanford. This intersection will also connect with the Wekiva Parkway (SR 429), currently under construction, when it is completed in 2021, at which point a full beltway (SR 429 & SR 417; concurrent with I-4 for 2 mi) around the Orlando metro area will be available. North of Sanford, I-4 is carried by the St. Johns River Veterans Memorial Bridge over the St. Johns River at the mouth of Lake Monroe. Along the bridge, I-4 enters Volusia County and passes Deltona & DeLand. The segment north of SR 44 is being widened from four to six lanes; when completed in 2016, the entire length of I-4 will have 6 or more lanes (3+ per direction). I-4 terminates at a junction with I-95 in Daytona Beach. SR 400 continues east into Daytona Beach 4 mi to US 1. 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「Interstate 4」の詳細全文を読む スポンサード リンク
|