Ajmer is at an important railway junction with Broad gauge lines to Jaipur Marwar, Udaipur, Ahmedabad, Delhi, and Mumbai and then onwards to Bangalore.

Trains: the city is serviced by Alfa Pendular ( Lisbon <-> Braga ; Lisbon <-> Oporto ; Faro <-> Oporto ) and Intercity ( Intercidades: Lisbon <-> Oporto and Lisbon <-> Guimarães ) trains, Regional trains, Suburban Trains ( Urbanos do Porto ) and also the Linha do Vouga, a narrow gauge railway to Águeda and Sernada do Vouga.

Botswana possesses 888 km of gauge railway, by 2002 figures, serving a number of towns and connecting the country to its neighbours.

The Ferrocarril de Antofagasta a Bolivia is a metre gauge railway in the north of the country.

* Argentina-Central Trans-Andean Railway-abandoned 1984 – 100 km of mountain railway of gauge with rack railway sections-break of gauge / at either end.

As of 2004, the nation ’ s railway system consisted of a state-controlled 660 km section of a 1, 146 km narrow gauge railroad that ran north from Abidjan through Bouaké and Ferkéssédougou to Ouagadougou, Burkina Faso.

* The Dominican Republic Government Railway is a narrow gauge railway.

Narrow gauge: Note: belongs to the government-owned Fiji Sugar Corporation The railway is not for passenger or public use.

The Finnish railway network consists of a total of of railways built with 1, 524 mm gauge.

* In April 2005, an agreement was signed to build a railway from Turkey through Georgia to Azerbaijan ( see Kars Baku Tbilisi railway line ) probably using ( Standard gauge ) supposedly so that it can eventually link with China.

However, the narrow gauge railway, totalling 935 kilometres, is presently undergoing major rehabilitation and inroads to the interior are now being made.

A tourist attraction — the East Hayling Light Railway — is a gauge railway that runs for just over from Beachlands Station to Eastoke Corner with aspirations to extend the route to Ferry Point within the next few years.

Italian railway system has a length of, of which standard gauge and electrified.

Shitrit had announced his intentions to propose a new standard gauge railway to connect Haifa, Israel, to Irbid, Jordan, passing through King Hussein Bridge and Jenin, a project that could cost as much as $ 300 million ( for the Jordanian portion of the line ).

The commission plans to modernize the old narrow gauge railway and replace it with new track.

* Russia-same gauge ( former Soviet Union railway system )

* China-break of gauge /; border station at Druzhba, KZ-Alashankou, CN, connects to the Lanxin railway.

* Kyrgyzstan-same gauge ( former Soviet Union railway system )

* Uzbekistan-same gauge ( former Soviet Union railway system )

* Turkmenistan-same gauge ( former Soviet Union railway system ) ( No direct link, passing through Uzbekistan, but proposed railway will pass throgh Turkmenistan and link Kazakhstan to Iran )

Another terminological difference is known as tension ( UK ) and gauge ( US ).

The word ' force ' is sometimes replaced by ' interaction ' because the fundamental forces operate by exchanging what are now known to be gauge bosons.

This law is inherent to all processes known to physics and can be derived in a local form from gauge invariance of the wave function.

With the possible exception of gravitation, these interactions can usually be described in a set of calculational approximation methods known as perturbation theory, as being mediated by the exchange of gauge bosons between particles.

By the end of the 20th century, almost the only steam power still in regular use in North America and Western European countries was on heritage railways largely aimed at tourists and / or railroad hobbyists, known as ' railfans ' or ' railway enthusiasts ', although some narrow gauge lines in Germany which form part of the public transport system, running to all-year-round timetables retain steam for all or part of their motive power.

The calibration of an ion gauge is unstable and dependent on the nature of the gases being measured, which is not always known.

A third type that is more sensitive and expensive known as a spinning rotor gauge exists, but is not discussed here.

Linia Hutnicza Szerokotorowa ( known by its acronym LHS, English: Broad gauge metallurgy line ) in Sławków is the longest broad gauge railway line in Poland.

These maintenance actions are based on conditions ( e. g., gauge reading or leaky valve ), hard conditions ( e. g., a component is known to fail after 100 hrs of operation with 95 % certainty ), or require inspection to determine the maintenance action ( e. g., metal fatigue ).

A micrometer ( ), sometimes known as a micrometer screw gauge, is a device incorporating a calibrated screw used widely for precise measurement of small distances in mechanical engineering and machining as well as most mechanical trades, along with other metrological instruments such as dial, vernier, and digital calipers.

The accuracy of micrometers is checked by using them to measure gauge blocks, rods, or similar standards whose lengths are precisely and accurately known.

If the gauge block is known to be 0. 7500 " ±. 00005 " (" seven-fifty plus or minus fifty millionths ", that is, " seven hundred fifty thou plus or minus half a tenth "), then the micrometer should measure it as 0. 7500 ".

In 1997, Juan Maldacena formulated a result establishing a relationship between gauge theories and a theory of gravity commonly known as AdS / CFT correspondence.

The standard model explains in detail how the three fundamental forces known as gauge forces originate out of exchange by virtual particles.

* The Mulobezi Railway ( also known as Zambezi Sawmills Railway ) is a narrow gauge line constructed to carry timber from Mulobezi to Livingstone.

* 1937 – Frans Michel Penning invents a type of cold cathode vacuum gauge known as Penning gauge

A simple gauge on the instrument panel called the slip indicator, also known as " the ball ", indicates when this coordination is achieved.

Today, this is commonly known as Indian gauge, but in 1851 the broad gauge was officially adopted as the standard gauge for the Province of Canada, becoming known as the Provincial gauge, and government subsidies were unavailable for railways that chose other gauges.

The Rye and Camber Tramway was an English narrow gauge railway in East Sussex.

In 2005 Bulgaria had some 6, 238 kilometers of open access track owned by the state company " National Company Railway Infrastructure ", including a 125 kilometers long 760 mm narrow gauge railway-the Septemvri-Dobrinishte narrow gauge line.

* 681 km ( Ethiopian segment of the Addis Ababa-Djibouti Railway ), all narrow gauge ( 1902 – 2010 )

* FERISTSA Railway was proposed to connect Mexico with Panama via Guatemala using standard gauge rails

A one-metre gauge line was laid down following the route of the former Jersey Railway from Saint Helier to La Corbière, with a branch line connecting the stone quarry at Ronez in Saint John.

The first commercially successful steam locomotive was Matthew Murray's rack locomotive, Salamanca, built for the narrow gauge Middleton Railway in 1812.

The first commercial use of a steam locomotive was Salamanca on the narrow gauge Middleton Railway in Leeds in 1812.

George Stephenson used the 4 ft 8½ in gauge ( with a belated extra of free movement to reduce binding on curves ) for the Liverpool and Manchester Railway, authorised in 1826 and opened 30 September 1830.

During the “ gauge war ” with the Great Western Railway, standard gauge was called narrow gauge.

The State Railway of Thailand operates 4, 070 km of 1. 000-m gauge railway line ( 372. 63 km double track and 106. 01 km triple track ).

The locomotive ran on gauge tracks, and was similar to Pet, which is preserved in the National Railway Museum at York.

The VR tram was called a " Street Railway " and was built using the Victorian Railways broad gauge instead of the cable tramway standard gauge of, and connected it with the St Kilda railway station, to allow trams to be moved along the St Kilda railway line for servicing at Jolimont Yard.

The Welsh Highland Railway, a narrow gauge heritage railway, was restored in 2011 and runs from Caernarfon to Porthmadog where it connects with the Festiniog Railway.

The new Caernarfon railway station in St. Helen's Road is the northern terminus of the narrow gauge Welsh Highland Railway.

Palmer's first hand impressions of the Ffestiniog Railway in Wales buoyed his interest in the narrow gauge concept which would prove to be advantageous while conquering the mountainous regions of the Southwest.

From Montrose, a line was laid north through Delta, reaching Grand Junction in March 1883, which completed a narrow gauge transcontinental link with the Rio Grande Western Railway to Salt Lake City, Utah.

The original Denver and Rio Grande Western Railway built a narrow gauge line from Ogden, Utah via Soldier Summit, Utah to Grand Junction, Colorado.

The railroad became the Rio Grande Western Railway in 1889 as part of a finance plan to upgrade the line from narrow gauge to standard gauge, and built several branch lines in Utah to reach lucrative coal fields.