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Roads

Naming rules

Put the most important street identification in the primairy street name. Importance from high to low: Asian Highway, National Highway, State Highway, Major district road, named road (like Hosur rd or Bannerughatta rd).
Put the lowest numbered road in the primary street name if there are more than one candidates for the primary street name. If for example the SH-20 and the SH-38 follow the same route, use the SH-20 as primary and SH-38 as alternative name.
Put all other known street names and numbers in the alternative street names. Their order doesn't matter.
Abbreviate the word Road to Rd, Highway to Hy.
If no street name is known, check None.
Use the same spelling for the same street name along the whole route.
For bridges with well-known names the road segment crossing the bridge can have the name of the bridge as primary name, so the otherwise primary name goes to the alternative names. Another option is to add a well known bridge as point of interest.

Asian Highway Network

Seven Asian Highways are running across India.

AH1 Tokyo - India via Kolkata in West-Bengal - New Delhi - Attari in Punjab - Turkey; total length: 20,557 km
AH42 Lanzhou (China) - Barhi in Jharkhand. Length: 3,754 km
AH43 Agra in Uttar Pradesh - Matara (Sri Lanka). Length: 3,024 km
AH45 Kolkata - Bengaluru. Length: 2,030 km.
AH46 Hazirah in Gujarat - Howrah in West-Bengal. Length: 1,967 km. The Indian Great Eastern Highway.
AH47 Gwalior in Madhya Pradesh - Bengaluru in Karnataka. Length: 2,057 km.
AH48 Bhutan - West-Bengal. Length 90.58 km.

Street name notation: Use AH plus number (without a hyphen), like: AH1, AH42.

National Highways

In 2010 a new numbering system for the National Highway network was introduced. The new numbering system is based on the orientation (east-west and north-south) and the geographic location of the highway. Still for many highways the old highway number is used. The National Highways Authority of India (NHAI) is the national government agency that is responsible for the highways.
standard rule is keeping the old NH-number in the primary street name until user reports or pictures (road signs) give evidence that the new number is being used. The new number can be added as alternative street name. If the new highway name is really used the new NH-number should be used as primary street name and the old NH-number goes to the alternative name.

Street name notation NH-# where # stands for the highway number, like NH-72.

State Highways

The individual states are responsible for their state highways.

Street name notation: SH-# where # stands for the state highway number, like SH-25.

Major District Roads

Street name notation: MDR-# where # stands for the Major District Road number, like MDR-110.

Schematic National Highway Map

A schematic National Highway map, created by Arun Ganesh in 2010 gives a nice idea about the new numbering based on the orientation (east-west in red and north-south in blue). Click on the map to enlarge.

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@@ Line 4: / Line 4: @@
 '''Naming rules'''
 [[File:India-highway-direction-board.png|right|250px]]
-# If a road is part of an <i>Asian highway</i> the '''AH''' notation goes into the primary name.  All other road numbers and / or names should go into the alternative street names.
+#Put the most important street identification in the '''primairy street name'''. Importance from high to low: Asian Highway, National Highway, State Highway, Major district road, named road (like ''Hosur rd'' or ''Bannerughatta rd'').
-# Otherwise, if the roadtype is <i>national highway</i> than our standard rule is keeping the old '''NH'''-number in the primary street name until user reports or pictures (road signs) give evidence that the new number is being used. The new number can be added as alternative street name. If the new highway name is really used the new '''NH'''-number should be used as primary street name and the old '''NH'''-number goes to the alternative name.
+#Put the lowest numbered road in the primary street name if there are more than one candidates for the primary street name. If for example the '''SH-20''' and the '''SH-38''' follow the same route, use the '''SH-20''' as primary and '''SH-38''' as alternative name.
-# Otherwise, If a road is part of the <i>Major District Roads network</i> as highest roadtype the '''MDR'''-number can be used as primary name.
+#Put all other known street names and numbers in the '''alternative street names'''. Their order doesn't matter.<br />
-# And further, if the road is used by more than one roadtype of the same level (AH, NH, SH, MDR) the lowest number should be used as primary name and the higher number can be added as alternative name.<br />
+#Abbreviate the word ''Road'' to ''Rd'', ''Highway'' to ''Hy''.
-# If the road is a numbered road but also has one or more specific names like ''Hosur road'' or ''Bannerughatta road'' these specific road names can be added as alternative names. Please abbreviate the word ''Road'' to ''Rd''.
+# If no street name is known, check None.
-# If the road is an unnumbered primary street or just an ordinary street, the street name if known can be used as primary name. If no name is known, check None.
+# Use the same spelling for the same street name along the whole route.
-<br />
+#For <i>bridges</i> with well-known names the road segment crossing the bridge can have the name of the bridge as primary name, so the otherwise primary name goes to the alternative names. Another option is to add a well known bridge as [[Places|point of interest]].
-If a <i>bridge</i> has a specific well-known name the road segment crossing the bridge can have the name of the bridge as primary name.
 <br />
 ===Asian Highway Network===
-Several Asian Highways are running across India. <br />
+Seven Asian Highways are running across India. <br />
-Use '''AH''' plus number (without a hyphen) as street name notation, like: '''AH1''', '''AH42'''. <br />
+<br />
+'''AH1'''   Tokyo - India via Kolkata in [[West-Bengal]] - New Delhi - Attari in [[Punjab]] - Turkey; total length: 20,557 km<br />
+'''AH42''' Lanzhou (China) - Barhi  in [[Jharkhand]]. Length: 3,754 km<br />
+'''AH43''' Agra in [[Uttar Pradesh]] - Matara (Sri Lanka). Length: 3,024 km<br />
+'''AH45''' Kolkata - Bengaluru. Length: 2,030 km.<br />
+'''AH46''' Hazirah in [[Gujarat]] - Howrah in [[West-Bengal]]. Length: 1,967 km. The Indian ''Great Eastern Highway''.<br />
+'''AH47''' Gwalior in [[Madhya Pradesh]] - Bengaluru in [[Karnataka]]. Length: 2,057 km.<br />
+'''AH48''' Bhutan - [[West-Bengal]]. Length 90.58 km.<br />
+<br />
+Street name notation: Use '''AH''' plus number (without a hyphen), like: '''AH1''', '''AH42'''. <br />
 <br />
 ===National Highways===
 In 2010  a new numbering system for the National Highway network was introduced. The new numbering system is based on the orientation (east-west and north-south) and the geographic location of the highway. Still for many highways the old highway number is used. The [http://www.nhai.org/ National Highways Authority of India (NHAI)] is the national government agency that is responsible for the highways.<br />
-Use as street name notation '''NH-#''' where '''#''' stands for the highway number, like '''NH-72'''.<br />
+standard rule is keeping the old '''NH'''-number in the primary street name until user reports or pictures (road signs) give evidence that the new number is being used. The new number can be added as alternative street name. If the new highway name is really used the new '''NH'''-number should be used as primary street name and the old '''NH'''-number goes to the alternative name. <br />
+<br />
+Street name notation '''NH-#''' where '''#''' stands for the highway number, like '''NH-72'''.<br />
 <br />
 ===State Highways===
 The individual [[India States|states]] are responsible for their state highways.<br />
-Use as street name notation '''SH-#''' where '''#''' stands for the state highway number, like '''SH-25'''.<br />
+<br />
+Street name notation: '''SH-#''' where '''#''' stands for the state highway number, like '''SH-25'''.<br />
 <br />
 ===Major District Roads===
-Use as street name notation '''MDR-#''' where '''#''' stands for the Major District Road number, like '''MDR-110'''.<br />
+Street name notation: '''MDR-#''' where '''#''' stands for the Major District Road number, like '''MDR-110'''.<br />
+===Schematic National Highway Map===
+A schematic National Highway map, created by Arun Ganesh in 2010 gives a nice idea about the new numbering based on the orientation (east-west in red and north-south in blue). Click on the map to enlarge.<br />
+[[File:Renumbered National Highways map of India (Schematic).jpg|500px|thumb|left|Author Arun Ganesh, 2010.<br />
+<small>This file is licensed under the Creative Commons [httpscreativecommons.orglicensesby-sa2.0deed.en Attribution-Share Alike 2.0 Generic license].</small>]]
+{{Clear}}
 __NOTOC__
 {{Bottomline}}

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