* Transceivers – Since communication over a single wavelength is one-way ( simplex communication ), and most practical communication systems require two-way ( duplex communication ) communication, two wavelengths will be required ( which might or might not be on the same fiber, but typically they will be each on a separate fiber in a so-called fiber pair ).

The route crosses the Raritan Valley Line before turning northeast on a one-way pair, with eastbound Route 28 following Fifth Street and westbound Route 28 following Fourth Street.

Past the Route 37 interchange, Route 35 continues north along Barnegat Bay, curving eastward and crossing into Toms River Township, where the route splits into a block-wide one-way pair with two lanes in each direction that heads north through residential and commercial Ortley Beach.

When Route 35 enters Brick Township, the northbound direction becomes Ocean Avenue and the one-way pair between the opposing directions of Route 35 narrows as it passes oceanfront residences.

Route 35 continues north through Bay Head, becoming Main Avenue, then enters Point Pleasant Beach, a beach resort with a boardwalk that is home to Jenkinson's Aquarium, where the route swings to the west and turns north onto another one-way pair with two lanes in each direction — the northbound direction following Cincinnati Avenue and the southbound direction following Richmond Avenue.

The one-way pair carries the route through the downtown area of Point Pleasant Beach.

The section of the route through downtown Point Pleasant Beach was turned into a one-way pair by 1969.

The northernmost part of the route is a county-maintained one-way pair that follows 1st and 2nd Avenues.

Past this intersection, the route proceeds through urban areas, turning west and splitting into a one-way pair.

Past this intersection, Route 88 briefly splits into a one-way pair.

Past the one-way pair, the route continues northeast on Princeton Post Road, which passes by numerous businesses.

Route 124, meanwhile, briefly splits into a one-way pair here.

The eastern of the route, the Holland Tunnel approach, runs concurrent with Interstate 78 on the one-way pair of 12th Street eastbound and 14th Street westbound.

From here, Route 139 continues east concurrent with that route and passes through business areas as a one-way pair that follows six-lane 12th Street eastbound and six-lane 14th Street westbound.

The route continues east and splits into a one-way pair.

LA 137 is a divided, four-lane highway south of Rayville, a pair of two one-way roads inside of Rayville, and an undivided, two-lane road north of Rayville.

The symbol used to represent a gyrator in one-line diagrams ( where a waveguide or transmission line is shown as a single line rather than as a pair of conductors ), reflects this one-way phase shift.

Roosevelt's principal and minor arterials are the one-way pair Roosevelt Way ( southbound ) and 12th Avenue NE ( northbound ), Lake City Way ( SR 522 ) and 15th Avenue NE, and NE 65th and 75th Streets.

At Main Street, Church Street splits into a pair of one-way streets and becomes North and South Division Street.

Here, the route splits into a one-way pair along Congress Street ( westbound ) and Ferry Street ( eastbound ) through the Central Troy Historic District.

Four blocks into Troy, NY 2 intersects US 4, also routed along a one-way pair through the city.

Near a partial interchange with Lansing Road ( old US 27 ), the freeway gains a pair of service drives: St. Joseph Street runs one-way westbound on the north side, and Malcolm X Street runs eastbound to the south.

M-25 is routed the one-way street pair of 7th Street and McKinley Street before crossing the Veterans Memorial Bridge over the Saginaw River.

It was formerly a one-way pair with 21st Street with Freeport heading one-way southbound and 21st heading one-way northbound.

The present status, in which it runs one-way southbound south of Columbus Circle ( 59th Street ), came about in several stages.

They are often designed in a one-way layout, leading customers counter clockwise along what IKEA calls " the long natural way " designed to encourage the customer to see the store in its entirety ( as opposed to a traditional retail store, which allows a consumer to go directly to the section where the goods and services needed are displayed ).

In Hong Kong, where shop space is limited and costly, IKEA has opened three outlets across the city, most of which have the one-way layout.

Examples of a one-way time transfer system are the clock on a church or town building and the ringing of their time-indication bells ; time balls, radio clock signals such as LORAN, DCF77 and MSF ; and finally the Global Positioning System which uses multiple one-way time transfers from different satellites, with positional information and other advanced means of delay compensations to allow receiver compensation of time and position information in real time.

A practical application of an asymmetric TSP is route optimisation using street-level routing ( which is made asymmetric by one-way streets, slip-roads, motorways, etc.

Tilburg Centrum is the downtown of Tilburg, and is situated between ( clockwise ) the Spoorlaan, Heuvelring, Paleisring, Schouwburgring and Noordhoekring, which is the same as the order of the one-way roads around the district.

In telecommunication, a one-way trunk is a trunk between two switching centers, over which traffic may be originated from one preassigned location only.

One type of electronic mailing list is an announcement list, which is used primarily as a one-way conduit of information and can only be " posted to " by selected people.

The vents have one-way flaps which prevent convection at night, thereby making heat flow strongly directional.

Some also have a one-way output valve in the sump, which automatically drains the sump as it fills with water.

The main north-south road in west Bloomsbury is Gower Street which is a one-way road running south from Euston Road towards Shaftesbury Avenue in Covent Garden, becoming Bloomsbury Street when it passes to the west of the British Museum.

In the mid-1960s, the main streets of Shoreditch were formed into a mile-long one-way system, which became associated with traffic congestion, poor conditions for walking and cycling, high speeds, high collision rates, and delays for bus services.

Weismann's idea was that the relationship between the hereditary material, which he called the germ plasm ( German, Keimplasma ), and the rest of the body ( the soma ) was a one-way relationship: the germ-plasm formed the body, but the body did not influence the germ-plasm, except indirectly in its participation in a population subject to natural selection.

The world was also dotted with a system of one-way portals which expedited travel.

Unlike Ceefax which was a one-way service carried in the existing TV signal, Viewdata was a two-way system using telephones.

Madison Avenue carries one-way traffic uptown ( northbound ) from East 23rd Street to East 135th Street, with the changeover from two-way traffic taking place on January 14, 1966, at which time Fifth Avenue was changed to one way downtown ( southbound ).

The first artificial vacuum had been produced a few years earlier by Evangelista Torricelli, and had inspired von Guericke to design the world's first vacuum pump, which consisted of a piston and cylinder with one-way flap valves.

He is usually depicted as an elderly bearded man, dressed in a robe and carrying a scythe and an hourglass or other timekeeping device ( which represents time's constant one-way movement, and more generally and abstractly, entropy ).

Contrary to popular opinion, Web 2. 0 is not a new version of the Web, rather it implies a shift in emphasis from Web browsing, which is essentially a one-way process ( from the Web to the end-user ), to making use of Web applications in the same way as one uses applications on a desktop computer.

In 2006, work commenced on the public transport hub, a scheme comprising a one-way loop of bus lanes around the town's inner ring road, which includes improvements to the connectivity between bus and rail services.

* Lumbar-peritoneal shunt: In cases of chronic increased intracranial pressure such as Idiopathic intracranial hypertension and Hydrocephalus, a tube or shunt with or without a one-way valve is used to drain the excess cerebrospinal fluid from the brain and transport it to the peritoneal cavity, which is a cavity located in the abdomen area of the body.

Armidale Dumaresq Council has been undertaking major upgrades to the mall since 2003 as part of the Armidale CBD Streetscape Design Project which aims at easing traffic in the city centre by creating an emphasis on the " ring road " around the CBD with the assistance of signage, elevation of roads using paving and the creation of one-way streets.