Misplaced Pages

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32-612: Prior to its replacement in 1991, the bridge, originally called St. Johns River Bridge , opened in 1921 and carried three lanes (center one reversible ) on a lift bridge of similar design to the nearby Main Street Bridge but was known as the Yellow Monster, largely for its tendency to stick in the upward position. Tolls were charged until 1940, earning more than $ 4 million for the City of Jacksonville . At some time in 1991,

64-466: A "suicide lane" for their notorious fatality rates, especially in the United States in settings with high traffic speeds (45 mph), and on roads with five or more lanes (typically two or three lanes in each travel direction with one center turn lane). However, some studies have found that converting high-speed four lane streets into three lane streets (one lane of traffic in each direction with

96-471: A $ 2.6 million project to replace the inoperable neon lights with LED lights. Installation is expected to be completed by summer 2020 and unlike the neon lights, the new LEDs will be able to display any color, not just blue. The original north approach was a T-shaped viaduct, with the bridge ending at Riverside Avenue ( US 17 / SR 15 ). Just southwest of the Acosta Bridge, Riverside Avenue passed over

128-435: A center turn lane) and lowering speed limits can result in improved safety, despite the use of a center turn lane, as traffic collisions occur at far lower speeds. These roads are very common in suburban areas and less common in rural areas, though they are frequent around developed areas near Interstate Highway bypasses in the United States. Many were divided highways before the median was demolished or otherwise replaced by

160-751: A concrete barrier is moved during low-traffic periods to switch a central lane from one side of the road to another; some examples are the five-lane San Diego-Coronado Bay Bridge in San Diego, California , the seven-lane Alex Fraser Bridge on the Fraser River in Vancouver and the eight-lane Auckland Harbour Bridge across the Waitemata Harbour in Auckland , New Zealand. Other systems use retractable cones or bollards which are built into

192-440: A configuration are often referred to as "express lanes"). Generally, traffic flows in one direction or another in such a configuration (or not at all); the carriageways are not "split" into two-lane roadways during non-rush periods. Typically, this sort of express lane will have fewer interchanges than the primary lanes, and many such roadways only provide onramps for inbound traffic, and offramps for outbound traffic. Historically,

224-540: A contraflow cycle lane is often marked in paint, with dotted white lines and ideograms of a bicycle, either all the way along the street if busy, or more commonly just at junctions. In the Netherlands, most one-way streets are two way for cyclists, although this is not always marked by a counterflow lane. This is presented as a 'one-way street, except for cyclists'. One-way streets that do not include contraflow for bicycles are rare and are usually only found as pairs of

256-546: A contraflow lane on Petrie Tce, Brisbane , Queensland , Australia. Tram lanes are an extension to this system found in cities with curbside streetcar networks. For example, tram lanes in Zagreb can be used only by trams, buses, and taxicabs. Contraflow is a common part of decent cycling infrastructure and is often seen on one-way streets. A standard example is that car and other vehicular traffic might have only one lane while on both sides there are bike lanes; one going in

288-412: A day and a speed limit of 20 mph, contraflow lanes do not require lane markings where, although appear on upright signage. As part of new or improved one-way road layouts, contraflow cycle lanes should be considered. In the United States, the town of Provincetown , Massachusetts on Cape Cod has long allowed cycling in both directions on its three-mile long main street, Commercial Street . There

320-458: A day. Contraflow lane In transport engineering nomenclature , a counterflow lane or contraflow lane is a lane in which traffic flows in the opposite direction of the surrounding lanes. Contraflow lanes are often used for bicycles or bus rapid transit on what are otherwise one-way streets . In a sample configuration for buses, a street might have four lanes: the outermost lanes are reserved for buses in both directions, while

352-582: A day. Contraflow bus lanes , areas in which a dedicated lane of an otherwise one way street is reversed for buses and other mass transit, exist in locations such as: From June 1990 to June 2002, a similar line existed in Montreal , along Pie-IX Boulevard ; this was indefinitely suspended after two fatalities. Government buses use a bus-only contraflow lane on Macquarie St in Hobart , Tasmania , Australia . Authorised buses, emergency vehicles and taxis use

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384-485: A lane specifically designed to facilitate different directional usage regularly, with changes sometimes as frequent as twice a day. There are typically three types of reversible lanes: While reversible lane is a commonly used term, other terms include variable lanes, dynamic lanes, and flex lanes. Some more recent implementations of reversible lanes use a movable barrier to establish a physical separation between allowed and disallowed lanes of travel. In some systems,

416-436: A one-way street through the opposite direction Contraflow Lane Reversal : Typically used to refer to a temporary setup of a lane running opposite to normal during special times, such as emergency evacuations, sports tournaments, or road construction/repairs. Reversible Lane : Typically used to refer to a lane specifically designed to facilitate different directional usage regularly, with changes sometimes as frequent as twice

448-474: A parking lot from a street. 2+1 roads have replaced some of these, mainly in Europe. Another type of center two-way lane is a "two-way left turn lane" (TWLT) or "center left-turn lane", or (for countries that drive on the right ) "center turn lane" or "median turn lane", a single lane in the center of the road into which traffic from both directions pulls to make a left turn. This lane is also sometimes called

480-570: A single street (with very large median) that are too far apart to be presented as a single street. It is not uncommon for cyclists to fail to notice a one-way street that does include contraflow for bicycles, because they are too accustomed to all one-way streets including bicycles. In the United Kingdom, it is standard since 2020 to encourage highway authorities to allow cycles to take a shorter and perhaps safer routes on narrow one-way residential streets. On streets with less than 1000 vehicles

512-483: Is a major component of the morning "inbound" commutation crossing the Hudson River . When lanes on motorways are closed for repair and maintenance, a contraflow lane may be set up on the other side of the central reservation. There are similar setups with slightly different usages, although the terms may be commonly used interchangeably. Contraflow Lane: Typically used to refer to a bus lane running against

544-544: The New Jersey Turnpike at Exits 16E and 17, and New Jersey Route 3 . The helix, tunnel, and terminal are owned and operated by the Port Authority of New York and New Jersey , the bi-state agency that also operates the 2.5-mile (4.02 km) contraflow lane along the left lane of three westbound lanes. The XBL serves over 1,800 buses, which transport more than 65,000 persons, each morning and

576-449: The adjacent Florida East Coast Railway bridge approach . When the bridge was rebuilt, the intersection was rebuilt as a semi-directional T interchange . Direct high-speed connections were provided between the bridge and both directions on Riverside Avenue, as well as a direct ramp from the bridge to the intersection of Broad Street and Bay Street (Riverside Avenue splits into a one-way pair of Broad Street and Jefferson Street north of

608-502: The bridge). The bridge originally emptied out on Miami Road (now Prudential Drive) just west of San Marco Boulevard, with a continuation, at least southbound, to San Marco Boulevard. SR 13 went south on San Marco Boulevard, and was later changed to go east on Miami Road. Around 1958, a system of freeways was built in Jacksonville. This system included an eastern approach for the recently opened Fuller Warren Bridge , along with

640-993: The center lane of such a highway for passing slow-moving vehicles, except when funding or space constraints dictate use of it as a rush hour "travel lane" when traffic is largely asymmetric between a central business district and its suburbs. U.S. Route 13 near the Greenville, North Carolina , city limits is a rare instance of a posted warning sign that states "do not pass in center lane". British Columbia Nova Scotia Ontario Alberta Quebec Alabama Alaska Arizona California District of Columbia Florida Georgia Indiana Kentucky Maryland Michigan Nebraska New Jersey New York North Carolina Ohio Pennsylvania South Carolina Tennessee Texas Utah Virginia In shopping centres and metro stations there may be an odd number of escalators, with one or more escalators running in different directions in different time of

672-464: The center two lanes are available for general traffic in only one direction. Thus, the street functions as two-way for buses, but one-way for all other vehicles. In certain situations, reversible lanes will be contraflow for a portion of the day. The Lincoln Tunnel XBL to the Lincoln Tunnel is a contraflow exclusive bus lane for buses during the morning peak period. The XBL lane is fed by

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704-514: The older Acosta Bridge and Main Street Bridge , carrying traffic to the Philips Highway ( U.S. Route 1 ( SR 5 )) and Atlantic Boulevard ( US 90 ( SR 10 )). A new approach to the Acosta Bridge was built, splitting from the old one two blocks north of Miami Road, and passing over the intersection of Miami Road and San Marco Boulevard before merging with the other bridge approaches. The old approach became southbound only, and northbound access

736-548: The original bridge was closed to allow construction of the new one to proceed. The Acosta Bridge was also notable due to its blue neon lights that illuminated the bridge at night. In February 2015 the Jacksonville Transportation Authority announced that the neon lights would "be off indefinitely with no return date on the books" citing a lack of funding for repairs. However, in 2019 the JTA began

768-591: The road, or retractable fences which can divert traffic from a reversible ramp. The two center lanes of the six-lane Golden Gate Bridge are reversible; they are southbound during morning rush hour and northbound at evening rush hour. Prior to the installation of a movable median barrier in January 2015, they were demarcated by vertical yellow markers placed manually in sockets in the roadway. Many urban freeways have entirely separate carriageways (and connecting ramps) to hold reversible lanes (the reversible lanes in such

800-681: The same as the above but there is only one bike lane, the contraflow lane, and bicycles travelling in the same direction as the cars share the cars' lane. This solution would be more suited to very narrow roads or ones with light traffic. In Belgium since about 2005, and in France since 2010, the default position in towns has been for one-way streets to be available for cycling in either direction, known in French as sens unique limité (SUL) in Belgium and double sens cyclable (DSC) in France. In this case,

832-399: The same direction as the vehicular traffic, the other (the contraflow bike lane) allows cyclists to safely go in the opposite direction to the cars. This is allowed as the road may not be wide enough for two lanes of car traffic but there is enough room to allow for the additional bicycle lane; and without it cyclists may be forced to take a long, and perhaps unsafe, detour. Another example is

864-401: The surrounding roadways – even where the lanes are not regularly reversed to handle normal changes in traffic flow. The presence of lane controls allows authorities to close or reverse lanes when unusual circumstances (such as construction or a traffic mishap) require use of fewer or more lanes to maintain orderly flow of traffic. There are similar setups with slightly different usages, although

896-591: The term "suicide lane" has also referred to a lane in the center of a highway meant for passing in both directions. Neither direction has the right-of-way , and both directions are permitted to use the lane for passing. In a similar layout, three lanes are striped with two in one direction and one in the other, but traffic in the direction with one lane is allowed to cross the centerline to pass. Passing lanes should not be confused with turning lanes. While they look similar, passing lanes are for highway overtaking, while turning lanes typically are used to stop and turn into

928-433: The terms may be commonly used interchangeably. Contraflow Lane : Typically used to refer to a bus lane running against a one-way street through the opposite direction Contraflow Lane Reversal : Typically used to refer to a temporary setup of a lane running opposite to normal during special times, such as emergency evacuations, sports tournaments, or road construction/repairs. Reversible Lane : Typically used to refer to

960-548: The turn lane. Many four-lane streets with a center double yellow line are being phased out in favor of 3- or five-lane streets with center turn lanes because the center lane allows for less disruption of traffic flow. For routes with moderate traffic, other movements involve downgrading four-lane undivided streets to three-lane streets with a turn-only center lane. This center lane can be used by emergency vehicles like police cars, ambulance, and fire trucks to avoid traffic traveling in either direction. Drivers are not allowed to use

992-540: Was in its path and had to be demolished. Reversible lanes A reversible lane , also known as variable lane , dynamic lane , and tidal flow , is a managed lane in which traffic may travel in either direction, depending on certain conditions. Typically, it is meant to improve traffic flow during rush hours, by having overhead traffic lights and lighted street signs notifying drivers which lanes are open or closed to driving or turning. Reversible lanes are also commonly found in tunnels and on bridges, and on

Acosta Bridge - Misplaced Pages Continue

1024-493: Was provided at Mary Street, two blocks north of Miami Road. A northbound exit was also provided at Mary Street for traffic coming from the south and east. No southbound entrance was provided, but the adjacent Main Street Bridge approach provided access in that direction. When the bridge was rebuilt, the south approach was kept almost identical. The only real difference was a new northbound onramp from Museum Circle, one block north of Mary Street. The popular Diamond Head Lobster House

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