(a) it shall cause as little detriment or inconvenience
to the Corporation as circumstances may admit;
(b)
before any Government Department commences any
work whereby the traffic on the North-west
Railway will be interrupted they shall give to
the Corporation notice of their intention to
commence such work, specifying the time at which
they will begin to do so, such notice to be given
30 days at least before the commencement of the
work unless the work is undertaken as a matter of
urgency to remove any hazard to the safety of any
person or property;
(c)
in so far as such works may affect the safe
operation of the North-west Railway, they shall