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Melbourne Traffic & Freight
Intelligence Brief

SCATS + TIRTL Open Data Update

September 2026 release - data through 29/09/2026 - generated 01/10/2026, 7:35 am
SCATS 08/04/2026 to 29/09/2026   |   TIRTL 23/05/2026 to 29/09/2026
Source: DTP Open Data TIRTL gate: publication ready SCATS change rows: provisional
SCATS traffic photo
SCATS
TIRTL tunnel photo
TIRTL
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EXECUTIVE SUMMARY

Spotswood Trailers turns Department of Transport and Planning open data into rapid, media-ready intelligence on Melbourne's roads and freight network. This monthly brief combines SCATS traffic signal data and TIRTL classified vehicle data to identify high-volume locations and truck hotspots, while quality gates prevent incomplete observation windows from being presented as confirmed traffic growth.

Media angle
Fresh DTP open data can be turned into same-day traffic and freight intelligence while complete-window checks separate reliable volume findings from provisional or suppressed change candidates.
SCATS movements
21,881,688,805
traffic signal movements
SCATS sites
4,634
signal locations
TIRTL vehicles
1,817,391,185
classified vehicle passings
TIRTL trucks
91,766,207
classified truck passings
Truck share
5.0%
of TIRTL classified volume
Busiest SCATS site
EASTERN Freeway OFF RAMP / HODDLE - Abbotsford
26,332,020
vehicle movements in the current SCATS update window
Provisional SCATS change
MIDLAND Highway / ARCHER - Shepparton
90,874 / day
first/latest comparison pending a separate SCATS completeness gate
Heaviest TIRTL truck location
West Gate Bridge outbound W (westbound) - Spotswood / Port Melbourne corridor
718,103
classified truck passings in the current TIRTL update window
Highest truck-share hotspot
Dohertys Rd (WB) (westbound) - ALTONA NORTH
21.8%
truck share at a meaningful-volume TIRTL site
Melbourne Traffic & Freight Intelligence Brief
SCATS signal intelligence
Page 2

SCATS: busiest locations and provisional movement changes

SCATS data is summarised by named traffic signal sites. Tables below use the current update window and show top locations by total movement and provisional first-window versus latest-window comparisons. These change rows remain provisional until a separate SCATS completeness gate is applied. Site IDs and location names are clickable map links where coordinates are available.

Location map

SCATS table locations

Zoomed to Melbourne-area SCATS rows for readability; regional rows remain listed and clickable.

Markers show rows with coordinates. Markers correspond to table ranking numbers.

Open first mapped point in Google Maps
SCATS table locations

Busiest SCATS locations

Named signal sites ranked by total movements in the current update window.

#SCATS IDLocationSuburbTotalAvg/day
13380EASTERN Freeway OFF RAMP / HODDLE - AbbotsfordAbbotsford26,332,020169,884
24035Burke / Barkers / Mont Albert - Hawthorn EastHawthorn East24,927,299160,821
34415PRINCES near CANNING - CarltonCarlton22,402,530144,532
43376HODDLE near STUDLEY (NORTHBOUND) - CollingwoodCollingwood22,034,706142,159
5849Canterbury / Mitcham / Boronia - VermontVermont21,740,512140,261
63393Punt / Swan - RichmondRichmond21,493,230138,666
73385Hoddle / Victoria - East MelbourneEast Melbourne20,308,889131,025
82487Princes Highway East near IRVING (LANSDOWNE) - St Kilda EastSt Kilda East20,151,356130,009
91197Kororoit / Ferguson - WilliamstownWilliamstown19,797,235127,724
101359Warrigal / Links Estate Access - Bentleigh EastBentleigh East19,598,635126,443

Provisional SCATS change candidates

First/latest comparisons only. Do not describe these rows as confirmed growth until the SCATS completeness gate is implemented.

#SCATS IDLocationSuburbFirst windowLatest windowDifference/dayChange
16094MIDLAND Highway / ARCHER - SheppartonShepparton25,298116,17290,874359.2%
2651Cheltenham / Hammond - DandenongDandenong22,78684,35961,573270.2%
3460High Street Road / Vannam / Jordan - AshwoodAshwood25,03981,78056,741226.6%
44128Sydney / Urquhart - CoburgCoburg23,14879,36756,219242.9%
52929King Street / Flinders Street - MelbourneMelbourne50,49594,95644,46188.0%
6544BLACKBURN near MATTHEW - Mount WaverleyMount Waverley21,49655,77834,283159.5%
Melbourne Traffic & Freight Intelligence Brief
TIRTL freight intelligence
Page 3

TIRTL: truck volumes and truck-share hotspots

TIRTL classified vehicle data is summarised by source site and heading. These tables highlight large truck volumes and locations where trucks form a high share of meaningful traffic. Site IDs and location names are clickable map links where coordinates are available.

Location map

TIRTL table locations

Shows named TIRTL source-site and heading rows from the tables on this page.

Markers show rows with coordinates. Markers correspond to table ranking numbers.

Open first mapped point in Google Maps
TIRTL table locations

Heaviest TIRTL truck sites/headings

Named source-site and heading combinations ranked by classified truck passings.

#TIRTL IDLocationSuburbVehiclesTrucksTruck share
1505 WWest Gate Bridge outbound W (westbound) - Spotswood / Port Melbourne corridorSpotswood / Port Melbourne corridor10,057,368718,1037.1%
2580 EM1 Monash Hwy - Stanley Outbound (eastbound) - MOUNT WAVERLEYMOUNT WAVERLEY11,179,294707,5846.3%
3167 EM1 Outbound - CH 18380 (eastbound) - MOUNT WAVERLEYMOUNT WAVERLEY11,173,301706,6456.3%
4173 EM1 Outbound - CH 19890 (eastbound) - MOUNT WAVERLEYMOUNT WAVERLEY11,143,699705,2296.3%
5145 EM1 Outbound - CH 16520 (eastbound) - CHADSTONECHADSTONE10,211,088699,6176.8%
6166 WM1 Inbound - CH 18380 (westbound) - MOUNT WAVERLEYMOUNT WAVERLEY10,595,352696,5736.6%
7149 EM1 Outbound - CH 17390 (eastbound) - MOUNT WAVERLEYMOUNT WAVERLEY10,182,149694,1476.8%
8107 EM80 Outbound - Keilor park off ramp (EB) (eastbound) - KEILOR EASTKEILOR EAST9,745,019693,7717.1%
9171 EM1 Outbound - CH 19450 (eastbound) - MOUNT WAVERLEYMOUNT WAVERLEY10,514,380691,7476.6%
10172 WM1 Inbound - CH 19890 (westbound) - MOUNT WAVERLEYMOUNT WAVERLEY10,263,416689,4706.7%

Highest truck-share hotspots

Top 8 filtered locations where trucks represent a large share of traffic volume. Full table available in supporting CSVs.

#TIRTL IDLocationSuburbVehiclesTrucksTruck share
1264 WDohertys Rd (WB) (westbound) - ALTONA NORTHALTONA NORTH979,351213,91521.8%
2263 EDohertys Rd (EB) (eastbound) - ALTONA NORTHALTONA NORTH1,101,928209,70219.0%
3255 NFitzgerald Rd and Federation trail (NB) (northbound) - LAVERTON NORTHLAVERTON NORTH919,124143,20015.6%
4261 NGrieve Pde (NB) (northbound) - ALTONA NORTHALTONA NORTH635,40693,47914.7%
5256 SFitzgerald Rd and Federation trail (SB) (southbound) - LAVERTON NORTHLAVERTON NORTH977,120143,59314.7%
6262 SGrieve Pde (SB) (southbound) - ALTONA NORTHALTONA NORTH725,77784,42311.6%
7555 EM8 Western Fwy - Ballan Inbound (EB) (eastbound) - BALLANBALLAN1,311,295142,42310.9%
8556 WM8 Western Fwy - Ballan Outbound (WB) (westbound) - BALLANBALLAN1,320,017141,66010.7%
Melbourne Traffic & Freight Intelligence Brief
Quality review, method and caveats
Page 4

Quality-controlled change reporting

Change claims require complete and comparable observation windows. Rows that fail those requirements are retained as QA evidence and excluded from the public uplift ranking.

TIRTL quality gate passed - incomplete comparisons are not presented as traffic growth

SCATS activation / anomaly candidates - provisional

Low or missing baseline sites with meaningful latest-window volumes. These are data or site-review leads, not confirmed traffic growth.

#SCATS IDLocationSuburbFirst seenLast seenDaysLatest-window avg
1197Princes Highway East / WEBSTER - DandenongDandenong08/04/202629/09/202615591,963
25512SCATS site 551227/07/202629/09/20266455,518
332286SCATS site 3228612/09/202629/09/20261852,719
46063SCATS site 606314/09/202629/09/20261646,734
532239SCATS site 3223924/09/202629/09/2026642,311

Validated TIRTL freight-share change result

0
No validated TIRTL freight-share uplift candidate
No site-heading met every complete-week, interval-equivalence, minimum-volume, truck-growth and truck-share requirement for this release.
524comparisons assessed
237coverage-review rows
1,739invalid/incomplete daily rows
0duplicate daily keys

TIRTL comparison rules

Latest complete Monday-Sunday week versus the median of up to four preceding complete Monday-Sunday weeks. A valid day requires at least 92 of 96 intervals. Publication requires at least 2 complete baseline weeks, at least 500 latest trucks per day, at least 20.0% truck growth and at least 2.0 percentage points of truck-share growth.

Responsible use

  • TIRTL figures are classified passings, not unique vehicles or journeys.
  • The same vehicle may be counted at multiple monitoring locations.
  • Volume and truck-share rankings do not establish cause.
  • SCATS first/latest change rows remain provisional pending their own completeness gate.
  • Check names, coordinates and unusual road text before publication.
Supporting material

Evidence pack available

Supporting CSVs, named site tables, maps and methodology notes are available on request.

Scan the QR code or use the contact details below for the evidence pack.

Spotswood Trailers QR code
Clarke Towson
Clarke Towson
Manager, Spotswood Trailers
7 Cullen Court
Spotswood, Vic 3015
0432 359 166
clarke@spotswoodtrailers.com.au
spotswoodtrailers.com.au
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