Tender invited for Development of Train Collision Avoidance System

ISO 9001: 2008 Effective from 18.06.2012 RDSO/SPN/196/2012 Version 3.1.1
Document Title : Specification of Train Collision Avoidance System
Field No. of bits Value Description
8 0000 0000 Next Signal to Signal on Approach is not identified
NEXT_SIG_ID
8
xxxxxxxx other
than 0000 0000
ID of the Next Signal to Signal on Approach
MA_W_R_T_SIG 16
Movement Authority in meters beyond the Signal on
xxxxxxxxxxxxxxxx
approach
GRAD_MA_W_R_T_SIG 4
NEXT_SIG_INTLKG 1
DIFF_DIST_NEXT_SIG
11 bits : when
NEXT_SIG_INTLKG
= 0 (same
interlocking)
16 bits : when
NEXT_SIG_INTLKG
= 1 (different
interlocking)
TO_SPEED 3
0000 Gradient not defined
Signal Directorate RDSO/Lucknow Page 48 of 56
Rising Ruling Gradient over Movement Authority beyond the
0001
Signal on approach
Level Ruling Gradient over Movement Authority beyond the
0010
Signal on approach
Ruling Gradient slab over Movement Authority beyond the
0011 to 1110
Signal on approach
1111 Spare for future use
0
1
xxx xxxxxxxx
xxxxxxxxxxxxxxxx
Next Signal to Signal on Approach is from same Source
Interlocking
Next Signal to Signal on Approach is from different
Interlocking
Distance in meters of "Next Signal to Signal on Approach"
from "Signal on Approach"
Distance in meters of "Next Signal to Signal on Approach"
from "Signal on Approach"
000 Turn-out Speed upto 15 kmph
001 Turn-out Speed upto 30 kmph
010 Turn-out Speed upto 50 kmph
011 Turn-out Speed upto 75 kmph
100 to 110 Reserved for future use
111 Unrestricted speed on turn-out / no diversion