It has been in the past parts of major bus routes leaving Perth. The tramline (closed in the 1950s) along William Street also crossed Newcastle Street.[3]
The street has also been identified in name, by schools and businesses. The Newcastle Street State School was at 478–482 Newcastle Street.[4] It was sometimes also named the Newcastle Street Infants School, as well as the Newcastle Street Primary School or even Newcastle Street School.[5]
It has been in the scope of the Northbridge Urban Renewal project.[6]
Traffic light controlled; no right turn from Newcastle Street westbound onto Charles Street northbound or Charles Street southbound onto Newcastle Street westbound; Charles Street continues after traffic lights as freeway ramps and Charles Street Bus Bridge
Traffic light controlled; no through traffic on Cleaver Street, Cleaver Street southbound is left-only to Newcastle Street eastbound; no right turn from Newcastle Street westbound to Cleaver Street northbound (except buses)
^"PERTH TRAM JUMPS RAILS". Kalgoorlie Miner. Vol. 41, no. 10, 373. Western Australia. 14 June 1935. p. 4. Retrieved 6 June 2018 – via National Library of Australia.
^"NEWS AND NOTES". The West Australian. Vol. XLIII, no. 7, 862. Western Australia. 23 August 1927. p. 10. Retrieved 6 June 2018 – via National Library of Australia.