Material modification :-
Material modification in railway can refer to several changes made to the materials used in railway infrastructure or rolling stock to improve safety, efficiency, or performance.
No material modification in a work or scheme as sanctioned should be permitted or under taken without the prior approval of the authority who sanctioned the estimate. In the case of estimates sanctioned by the Railway Board or higher authority instances of will be considered to be a material modifications of a sanctioned project or work are given in below –
The following may be taken as material modifications on the lines under construction and open line works estimated to cost rupees one crore and over .
a) Any change in the alignment likely to affect the facilities offered to the public in the neighborhood or likely to increase or decrease the length of the line by over one kilometer.
b) Introduction of any new station or omission of any station.
c) Any alteration in the type or number of engines or vehicles provided in an estimate for rolling stock.
d) A change in the layout of a yard affecting the general method of working or increasing or deducting the number of trains that can be dealt with.
e) Any departure from the standards of construction as accepted by the railway board in the Abstract estimate or use of any second new material.
f) The introduction or omission of any work or facility involving a sum of Rs. 5 Laces and over.
g) Any modification of a sub work provided for in the estimate of a sanctioned work involving an additional out lay on that sub work of more than Rs. 5 laces.
h) The introduction of any new sub work not provided for in the estimate of a sanctioned work involving an out lay of more than Rs. 5 laces.
i) Any alteration in the standards of inter locks.
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