Railway Procedures Flashcards
list six general hazards associated with railway infrastructure
10 examples given
access/ location, movement of trains, speed of trains and air turbulence, stopping distances, number of controlling operators, transportation of hazmat, variety of rolling stock, Elec power supplies, residual current, tunnels
what does TOPS stand for?
total operating processing system
how is TOPS info received?
via control by sending a message prefixed with “request TOPS information on carriage number at location”
what is meant by “trains running under caution”?
driver is warned that personnel are on track, and they must proceed at a speed enabling them to stop if req.
(50mph on straights, 5mph on bends, fog etc)
if the IC commits to the track, a priority message should be sent including what?
5 ELEMENTS
location & nature of incident.
If trains need to be stopped.
If they need to run at caution.
If traction current isolation is required.
The action ic is initiating.
FROM LFF O’CONNOR AT CLAPHAM JCT. 1 ADULT MALE ON SOUTHBOUND TRACK BETWEEN CLAPHAM JCT AND BALHAM, REQUEST TRACTION CURRENT ISOLATION AND ALL TRAINS STOPPED ON SOUTHBOUND TRACK, CREWS BEING COMMITTED TO SOUTHBOUND TRACK. BRIGADE LOOKOUTS DEPLOYED AT 700M INTERVALS. TMO
what additional control measures are available to maintain crew safety, when working on track?
(six elements)
Brigade lookouts on either side of incident site.
Maintain line of sight, emergency evac routes min of 3 m away
Working under supervision (safety officer)
Minimum personnel and equip
Do not enter tunnels until confirmed stop
Crews withdraw immediately task compete and inform control
Give 5 reasons why the role of a lookout is extremely demanding?
complexity of multiple lines
bi-directional running trains,
layout of lines
speed of trains
varying weather and visibility conditions
what communications systems are available for OLE (Overhead line equipment) and sub surface
5 answers
headwall telephones, signal post telephones, ole gantry telephones, public address systems, leaky feeder
trackside telephones are indicated by what?
red telephone on a what background marked with word “electrification”
how are signal post telephones marked?
diagonal black and white stripes and connected to signal box
what considerations must be given when determining the most suitable position for an RVP?
5 answers
crew safety, access for appliances, effective communication, plans & boxes, water supplies
what four types of fixed installations may be found at station premises?
auto fire detection systems,
sprinklers,
inert gas,
fire mains / hydrants
what types of ventilation system can be found at sub surface stations?
mechanical,
natural,
manual override
what are intervention points?
two things
A means of access for emergency response.
A means of escape for passengers and staff
what five features of an intervention point should we be aware of?
locations
rvps
access
plans
water supplies
