Classification of diff. routes by IR-----
A class: Lines in this class are BG sections rated for speeds up to 160km/h. Some of these are:
Most of the New Delhi - Howrah line (via Grand Chord and Howrah-Burdwan Chord ('Rajdhani route')).
New Delhi - Bombay Central ('Frontier Mail route' or 'Golden Temple Mail route')
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Delhi - Madras Central ('Grand Trunk route')
Howrah - Nagpur - Bombay V.T. (CSTM)
Ratnagiri - Sawantwadi (KR)
B class: This class allows speeds up to 130km/h. This class includes the following sections (from 1999 unless otherwise indicated):
Allahabad - Katni - Jabalpur - Itarsi - Bhusaval
Kalyan - Pune - Daund - Wadi - Secunderabad - Kazipet
Vadodara - Ahmedabad
Mathura - Ratlam
Ahmedabad - Ajmer - Jaipur - Bandikui - Rewari - Delhi
Sitarampur - Madhupur - Kiul - Patna - Mughalsarai
Howrah - Bandel - Barddhaman
Kharagpur - Waltair - Vijayawada
Kiul - Bhagalpur - Sahibganj - Barharwa
Delhi - Panipet - Ambala Cantt. - Kalka
Ambala Cantt. - Ludhiana - Pathankot
Ambala Cantt. - Moradabad - Lucknow - Pratapgarh - Mughalsarai
Agra Cantt. - Lalitpur
Kanpur-Agra (As of [2/00] there was a plan to upgrade this and Lucknow-Kanpur to 'A' and rate it at 140km/h.)
Virar - Vadodara - Godhra
Lalitpur - Bina
Khanna - Barharwa - Farakka Bridge - Malda Town
Wadi - Raichur - Arakkonam - Madras Central
Jolarpettai - Bangalore
Arakkonam - Jolarpettai - Salem - Erode - Coimbatore - Ernakulam
New Jalpaiguri - Malda Town (NFR)
Chennai Beach - Dindigul [2005]
Chennai Beach - Chennai Egmore (3rd line) [2005]
Bangalore - Dharmavaram - Gooty [2004]
Ghaziabad - Saharanpur [2005]
C class: This is not really a speed-rated class, but is the classification used for suburban sections of metropolitan areas.
CST Mumbai - Kalyan - Kasara
CST Mumbai - Kalyan - Karjat
CST Mumbai - Kurla - Panvel
CST Mumbai - Ravali - Mahim - Andheri
CST Mumbai - Ravali - Kurla
Churchgate - Mumbai Central - Borivali - Virar
Chennai Central - Basin Bridge Jn. - Veyasarapadi - Arakkonam
Chennai Central - Basin Bridge Jn. - Washermanpet - Chennai Beach - Tambaram
Chennai Central - Basin Bridge Jn. - Korukkupet - Tondiarpet - Tiruvottiyar - Gummidipundi
Chennai Beach - Thirumayilai
Sealdah - Dumdum - Naihati - Kalyani - Ranaghat - Krishnanagar
Sealdah - Sonarpur - Baruipur
Ballygunge - Budge Budge
Howrah - Dankuni - Saktigarh - Barddhaman
Howrah - Bandel - Saktigarh
Seoraphuli - Tarakeshwar
Dumdum - Barasat
Howrah - Panskura - Kharagpur
D-special class: BG lines rated up to 100km/h, with high traffic density or high expected growth in traffic. The following lines were identified as D-special routes in 1999 unless otherwise indicated:
Kharagpur - Midnapur - Adra
Barkakhana - Barwadih - Garwa Road
Tundla - Yamuna Bridge
Bolangir - Titlagarh
Gudur - Renigunta
Anara - Chandil - Kandra - Sini
Anuppur - Shahdol - Katni - Bina
Ahmedabad - Viramgam
Nagda - Ujjain - Maksi - Bhopal
Lucknow - Sultanpur - Zafarabad Jn - Varanasi
Delhi - Ghaziabad - Hapur - Moradabad
Lucknow - Kanpur (In [2/00], there was a proposal to upgrade this to 'A'.))
Chapra - Hajipur - Barauni
Raipur - Titlagarh - Vizianagaram
Guntakal - Tornagallu - Hospet (Hospet section added 2004)
Udhna - Nandurbar - Jalgaon
Gomoh - Chandrapura [2005]
Garwa Road - Chopan [2005]
Garwa Road - SoneNagar [2005]
Barauni - Katihar [2005]
Sambalpur - Talcher - Nergundi [2005]
Jharsuguda - Bolangir [2005]
Barabanki - Gonda - Gorakhpur - Chhapra [2005]
Champa - Gewra Road [2005]
Bilaspur - Anuppur [2005]
D class: BG lines rated up to 100km/h.
Salem - Bayappanahalli
Guntur - Donakonda - Guntakal
Vikarabad - Parli - Parbhani
Vijayawada - Bhimavaram - Nidadavolu
Secunderabad - Dronachalam
Jodhpur - Marwar
Diva - Vasai Rd (Was E-Special until recently [2004].)
Pen - Roha
Kumedpur - Katihar Jn
Rewari - Hissar
Kalumna - Nagda (via Itwari)
Kota - Ruthiyai
Bina - Guna - Ruthiyai
E-special class: BG lines with sanctioned speeds below 100km/h, with high traffic density or high expected growth in traffic. The following lines were identified as E-Special routes in 1999:
Garwa Road - Sonnagar
Panskura - Haldia
Talcher - Rajatgarh - Salegaon - Nergundi
Cuttack - Paradeep
Radhakishorepur - Rajathgarh - Barang
Kapilas Road - Salegaon
Radhakishorepur - Machapur
Kirandul - Koraput
Rajakharshwan - Dongaposi - Padapahar - Barajmda - Gua
Bondamunda - Bimlagarh - Barsuan - Kiriburu
Kandra - Gomhauria (Gamharria)
Champa - Gevra Road
Marauda - Dallirajhara
Urkura - Sarona
Bhojudih - Mohuda (Grand Chord)
Chandil - Muri - Bokaro - Rajbera
Padapahar - Banspani
Jharsuguda - Sambalpur - Bolangir
Barajamda - Bolanikhandan
Muri - Barakakana
Talgoria - Bokaro City
Kota - Ruthiyal
Diva - Vasai Road (formerly [1999]; now D class)
Tornagallu - Hospet (formerly [1999]; now D class)
Andal - Sainthia [2004]
Hatia - Muri [2004]
Mohuda - Gomoh [2004]
Koraput - Kottavalasa [2004]
Koraput - Singapuram Road [2004]
Sambalpur - Angul [2004]
Anuppur - Bijuri - Boridand [2004]
Boridand - Bisrampur [2004]
Durg - Marauda [2004]
Londa - Vasco [2004]
Dewas - Maksi [2004]
Gandhidham - Bhuj [2004]
Dornakal - Bhadrachalam Road - Manuguni - Kerapalli & Singereni collieries [2004]
Sanathnagar - Maula Ali (bypass line) [2004]