No official Railway Board PDF has been traced for this entry yet. The text below was read from the document held in the library.
| Type | Commercial Circular |
|---|---|
| Topic | reservation |
rule (4) (3) Where owing to the curvature of the line, fog, rain, dust storm, engine working the train pushing it or other causes, the line ahead cannot be seen clearly, the Loco Pilot shall proceed at a very slow speed, which shall under no circumstances exceed 10 Kilometers an hour stop signal shall work as normal Automatic stop signal
Sub code : CLI-03
IBS, LC gate working
& Automatic Signaling
CSS Subrahmanyam
Professor.Signal-II
IRISET/SC.
LEVEL CROSSING GATES
INTRODUCTION :
When road traffic crosses the rail traffic at the same level
they are known as Level crossings and signalling arrangements at
such crossings may be required if they are busy. A road rail
crossing at different levels is, of course, the best arrangement as it
is completely safe and the movement of road traffic is then
unrestricted but in view of the high initial cost of bridges, such
crossings are employed only where road or rail traffic are heavy.
When the barriers are controlled manually either from gate lodge or
from a remote location such as from a nearby cabin, the operator
must be able to see that the crossing is clear of road vehicles before
signals for a train are taken ‘OFF’.
Where lifting barriers are operated from the nearest cabin, the
distance from the cabin to the L.C is limited to 150 mts. It is
necessary that the operator have a clear view of the L.C and
approach road on either side to ensure that speedy vehicles do not
damage the lifting barriers or get trapped between the barriers.
To prevent speeding vehicles , provide humps or speed breakers on
both sides of approach of Level crossings
LC Gates are classification depends on
▪
Depends on nature of road
▪
The no. of road vehicles passing
▪
The no. of trains passing.
5
Classification of Level crossing gate is given below :
For road vehicles : ‘Special’ class, ‘A’ Class , ‘B’ Class , ‘C’ Class
For cattle crossings : ‘D’ Class.
The classification of Level crossings is made after conducting the
Level crossing census once in 3 years by a team consisting of
supervisors of Engineering and Traffic department shall do the census
of TVU for 07(seven) days generally and average per day is taken.
TVU train vehicle unit = No of trains x No of road vehicles.
1. TVU- Train Vehicle Unit (train unit x vehicle unit)
2. Train, Motor vehicle, bullock carts & tongues – 1 unit
3. Cycle rickshaw & auto rickshaw – ½ unit
4. Fencing parallel to the track – 15M
5. Gate lodge –6M from center of track
6. Speed Breakers – 20M from center of track
7. Gate post – 3M from center of track
8. TVU is more than 6000 or L.C.Gate visibility is poor –Un manned
gate is converted into Manned gate.
Additional information For L.C.Gates
LC Gates are classified
1. SPL – Class - More than 50,000 (TVU)
2. ‘A’-Class – More than 30,000 (TVU)
3. ‘B-1’ – Class – More than 25000 (at least 750 buses/day) [TVU]
4. ‘B-2’- Class- More than 20000 (TVU)
5. ‘C’ – Class – All there road user
6. ‘D’ – Class – For cattle crossing.
“census will be taken once in three year, 7 days consecutive, on an
average”.
8
sn. Class | Criteria Interlocking/Remarks
R.O.B/R_U_B to be provided.
Special
class TVU greater than 50,000 Gate to be interlocked till R.O.B is
commissioned
TVU between 50,000 — 30,000
‘A class and number of road vehicles
greater than 1000
TVU between 20,000 — 30,000
‘BY’ class and number of road vehicles Compulsory
greater than /50
3 ‘pa? TVU less than 30,000 & up to
Bt’ class 25,000
पर cl TVU less than 25,000 up to
crass 20,000
To be interlocked if existing within
Station limits.
All other L.C gate not covered in L_.C Gate to be manned under
above classes
For Cattle Crossing
4 ‘C’ class
following circumstances:
1. TVU > 3000 Cat ‘C-I’ &> 2500
Cat ‘C-II’
Gates can be broadly divided into the following
categories:
(a) Non-Interlocked Gates, Interlocked Gates:
(i) Non-Interlocked Gates: These gates may be in the form of lifting
barriers or swing/ movable gates of approved design. These gates
are
installed
and
maintained
by
engineering
department.
Communication equipment's of approved type are provided and
maintained by S&T department.
(ii)
Interlocked
Gates:
At
interlocked
gates,
interlocking
and
communication equipment are provided and maintained by S&T
department. These gates are in
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