Originally Posted by
S.o.S.
For example, the aircraft that is departing will, on take off, NEVER turn towards the runway where landings are taking place - even if that is the direction of their destination. This is so that, if the landing aircraft has to go around (not land) for some reason, their path will not cross with those departing.
Not wishing to be picky, but I think that's very much an oversimplification.
An airport like Heathrow wouldn't be able to function if departures from the southern runway weren't able to turn to the north, and vice versa. The controllers do a pretty good job of keeping missed approaches clear of departing traffic, and will vector the latter off the SID, if necessary.