Railway Procedure

Question 1

Trains run under caution means the drivers are warned of personnel working in the track. And travel at reduce speed. What speeds are they?

Answer 1

On long straight stretches of line when visibility is clear trains can run at a max of 50mph.
On stretches with bend or poor visibility as low as 5mph

Question 2

At LUL and HEX tunnel a general indication of traction current has been discharged is?

Answer 2

The emergency lighting coming on

Question 3

IP or intervention point can be identified by the following means?

5

Answer 3

• Doors with IP in black writing and white back ground
• Signs at track level giving distance, direction
• signs in running tunnels
• LFB plans boxes
• brigade control

Question 4

When a LU member of staff has confirmed current traction is off. The IC should do what?

Answer 4

Send a message to control informing them of this.

Question 5

What information should the LFB plans box contain.?

3

Answer 5

• two set of station plans
• a com status indicator (if channel 5 is working)
• a key to adjacent IV points

Question 6

FB 14 is used to gain access to LFB plan boxes but if you have to cut the L shape bracket. What must happen with the plans?

Answer 6

At the end of the incident the IC should give the plans to the LUL station supervisor for safe keeping until the box is repaired. This should be done within 24hours and we should check to make sure this has been done.

Question 7

Fire mains at LUL stations.

What are the stats?

Answer 7

• 150mm
• in the tunnel at 60m
• filled with water, which must be pressurised by station or appliance.
• fitted with limiter to reduce pressure to 4.5 bar pressure.

Question 8

Comms,

In tunnels to prevent radio message being transmitted overlap areas are provided. How large are the overlap areas?

Answer 8

Five meters

Question 9

Safe working distance for DLR is?

Answer 9

2 meters from the running rail.

Question 10

What is the sign for the trains to stop?

Answer 10

Both arm raised above head.

Question 11

What is the danger of crossing a tram junction for emergency services.

Answer 11

Trams have on-board transponders to control the traffic lights, so they can proceed unimpeded.

Question 12

Will turning off current traction stop trains?

Answer 12

Not straight away! The trains can coast long distances and diesel trains will not be affected

Question 13

Should brigade be used as look outs?

Answer 13

We shouldn’t, but it considered inevitable that in some occasions the use of brigade lookouts may be required.