22-10-2010, 08:21 AM
khlai,
I would disagree that the term 'normal' for any signal means red. Normal means whatever is designed to be normal. For long sections of autos, normal tends to be green as designated by a double line through the aspect rather than a single on the scheme/signalling plans. Don't forget though that the last auto in rear of a controlled signal will probably have a least restrictive aspect of green but its normal aspect should only be a single yellow. Think about why.
Similarly, in points tends to lie so the fastest route is 'normal'. However, for trapping 'normal' is the lie to derail trains!
Jerry
I would disagree that the term 'normal' for any signal means red. Normal means whatever is designed to be normal. For long sections of autos, normal tends to be green as designated by a double line through the aspect rather than a single on the scheme/signalling plans. Don't forget though that the last auto in rear of a controlled signal will probably have a least restrictive aspect of green but its normal aspect should only be a single yellow. Think about why.
Similarly, in points tends to lie so the fastest route is 'normal'. However, for trapping 'normal' is the lie to derail trains!
Jerry
Le coureur