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WAM 4 - Father of the Nation for RailFans - Vikas Kumar

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Blog Entry# 2013990
Posted: Oct 06 2016 (20:16)

6 Responses
Last Response: Oct 17 2016 (18:18)
Rail News
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IR Affairs
ER/Eastern
Oct 06 2016 (20:14)   परत दर परत खुलने लगी है वाइ लेग लाइन की सच्चाई
 

chandansharma   6 news posts
Entry# 2013990   News Entry# 282352         Tags   Past Edits
जमालपुर-मुंगेर-खगड़िया, बेगूसराय नई रेलखंड पर भागलपुर की ओर से आने और जानेवाली लाइन से होकर एक्सप्रेस ट्रेनों के परिचालन की पांच बार घोषणा के बावजूद ट्रेनों...

1 Posts

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Oct 06 2016 (20:32)
VivekSingh~
VivekSingh~   1745 blog posts
Re# 2013990-2              
Sometimes you have to give sharp turns under geographical or space constraints. Curve between Katni Murwara to Katni jn is also quite sharp, where trains crawl at speed of 10-15kph. Within PSR they can use the Y-leg I believe.
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Oct 07 2016 (01:02)
chandansharma   42 blog posts
Re# 2013990-3               Past Edits
I have added the distance and curve of both the Y leg, As per google map MGR-JMP-BGP Y leg curve is 612 Meter and Katni Jn to Katni Murvara Jn Curve is 710 Meter. both looks similar curve, it means if Railway engineers provide the quality of work Munger-Jamalpur-Bhagalpur Y leg is also possible for frequently running the trains as Katni Jn to Katni Murvara Jn Curve is already running. Yes some precautions should be taken by Train running department.
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Oct 07 2016 (03:08)
chandansharma   42 blog posts
Re# 2013990-4               Past Edits
As per Newspaper the Central angle of JMP-MGR-BGP Y Leg curve is 180 degree. and we know the arc length is 610 meter. So we can find the radius of the curve. As per wikipedia Indian Railways sharpest curve permitted on broad gauge is 175 meter radius. Minimum_railway_curve_radius
Now We have length of the Arc is 610 meter and Central Angle 180 degree(= 3.1415926536 radians).
Formula Curve Radius = Arc Length / Central Angle(In Radians)
Now
...
more...
the JMP-MGR-BGP Y leg Curve Radius = 610/3.1415926536 Meter = 194.17 Meter.
which is greater than the Sharpest curve made by Indian Railway. So It is feasible.
I have added the diagram of the current construction, according to me the central angle is not 180 degree, don't know where the information comes from to the newspaper, newspaper is wrong about the central angle, according to me the central angle is little bit more than 90 degree, if we think it is 100 degree(= 1.74 Radians) then the calculation will be.
Now the JMP-MGR-BGP Y leg Curve Radius = 610/1.74 Meter = 350.57 Meter.
Which is far better than the Sharpest curve in india. I agree there must be some problem in construction but this is not related to architecture.

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Oct 07 2016 (06:59)
MailguardSG25~
MailguardSG25~   24054 blog posts
Re# 2013990-5              
Y leg construct kiye jaate h khule maidan mein naki Jamalpur jaise old crowded cities k beecho beech... Yeh toh hona hi tha...
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Oct 17 2016 (18:18)
Avijeet Mishra   431 blog posts
Re# 2013990-6              
okeyy phir to 1 do sal ke baad hi ab Y leg chalu hoga :-(
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