Roads View history

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Roads

Naming rules

1. 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).
2. 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.
3. Put all other known street names and numbers in the alternative street names. Their order doesn't matter.
   
4. Abbreviate the word Road to Rd, Highway to Hy.
5. If no street name is known, check None.
6. Use the same spelling for the same street name along the whole route.
7. 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.
Road type: Freeway or Major Highway.

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.
Road type: Freeway or Major Highway.

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.
Road type: Minor Highway

Major District Roads

Street name notation: MDR-# where # stands for the Major District Road number, like MDR-110.
Road type: Primary Street or Minor Highway.

Schematic National Highway Map

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

Author Arun Ganesh, 2010.
This file is licensed under the Creative Commons [httpscreativecommons.orglicensesby-sa2.0deed.en Attribution-Share Alike 2.0 Generic license].

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