There was a case in Sydney, Australia recently which highlighted this. A school boy was lost in bushland and called 000 (Australian 911)and they asked that he give them a street address to which they could send an ambulance. As he was in the middle of the bush, there was no streets or signs etc. Local knowledge may not have saved him, but it would have made locating him significantly easier rather than just reading from a script and asking for a street name.
Source: http://www.theaustralian.news.com.au/story/0,25197,25373564-...
