Question on Notice regarding average peak-hour travel speeds on Tonkin Highway in Western Australia for 2025 and 2017. The answer provides specific speeds for different directions and times of day, but for different sections of the highway.

AnsweredQoN 1046Legislative Council
Asked
3 December 2025
Portfolio
Transport

QuestionView source ↗

I refer to traffic on major Western Australian roads, and I ask: (a) as of 30 June 2025, what was the average weekday peak-hour travel speed for each of the following locations and times: (i) Tonkin Highway, AM, Northbound; (ii) Tonkin Highway, PM, Northbound; (iii) Tonkin Highway, AM, Southbound; and (iv) Tonkin Highway, PM, Southbound; and (b) what were the same figures in (a), as of 30 June 2017?

AnswerView source ↗

Answered
24 February 2026
Responded by
Parliamentary Secretary to the Minister for Transport
Response time
6 days
(a)        Between Thomas Road and Brand Highway:
(i)                 79.6 km/h
(ii)              78.5 km/h
(iii)            82.1 km/h
(iv)             77.7 km/h
(b)        Between Thomas Road and Reid Highway:
(i)                 67.8 km/h
(ii)              65.1 km/h
(iii)            67.0 km/h
(iv)             66.9 km/h

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