one train working single lines

Question 1

what are single lines?

Answer 1

portions of bi-directional line where only one train can be in one section at one time

Question 2

what are the 4 different types working of single lines?

Answer 2

electric token block
no signaller token block
one train working without staff
one train working with staff

Question 3

explain how electric token block works?

Answer 3

train electrically collects token block to gain access to single line and keeps trains out by having this “electric token”

Question 4

explain how no signaller token block works ?

Answer 4

collect token from box A
Drop off at no signal token machine
call signal box B ask to use token
take token to box B give to signaller

Question 5

explain how one train working without staff?

Answer 5

going towards a dead end your on track circuits which is your “electric token” that occupies the line only lets trains in once out of the single line

Question 6

one train working with staff?

Answer 6

going towards dead end isn’t track circuited have to take a physical staff out of box to enter single line, if staff is taken must wait

Question 7

to enter a single line what do you need to have?

Answer 7

Possession
Assist a failed train
Modified working
Pilot working
Shunting