transport

Hi all i am trying to find some radio frequencies for buses in sydney ie transit system ugo busways etc thanks

anyone know what service 451.7000MHz is? From listening to it it sounds like a transport/taxi/tow company. The repeater has a long hold time, after someone unkeys, it will hold (dead key) for 3 to 5 sec then there is a strange tone as the repeater stops transmitting. the same noise is heard...