Nillumbik Traffic & Freight Intelligence Report
Independent council-area traffic and freight report generated from SCATS and TIRTL project outputs. Generated: 2026-06-22 16:34
Key findings
Traffic load
- Nillumbik ranks 31 of 31 councils by matched SCATS traffic movements.
- The report covers 27 matched SCATS sites and 3,114.4M cumulative signal movements.
Site-level pressure
- The highest-volume matched SCATS site is DIAMOND CREEK RD / GREENSBOROUGH Highway / CIVIC in Greensborough, with 491.1M movements.
- The top 5 matched SCATS sites account for about 44.6% of the council's ranked SCATS site movements.
- The top 10 matched SCATS sites account for about 64.7% of the council's ranked SCATS site movements.
Freight evidence
- No matched TIRTL detector sites are available for this council in the current input layer.
- This should be treated as a freight detector coverage gap, not evidence of no truck activity.
How to read this
- SCATS evidence shows long-period traffic signal movements at matched signal sites.
- TIRTL evidence shows observed detector coverage where matched detectors exist.
- Use the map first to locate the evidence, then use charts and tables for detail.
Useful questions for council / DTP
- Which of the highest-volume SCATS sites align with current local traffic, safety or corridor priorities?
- Do the mapped high-pressure sites match the locations residents and councillors complain about most often?
- Should the highest-ranked sites be reviewed for signal timing, pedestrian safety, freight impacts or state-road advocacy?
- Would better TIRTL or freight detector coverage help the council understand truck activity more clearly?
Suggested DTP follow-up themes
Intersection hotspot review
- Why it appears relevant: Traffic appears concentrated: the top 5 matched SCATS sites account for about 44.6% of ranked SCATS site movements.
- Possible DTP / officer question: Should the top 5 highest-pressure intersections be reviewed first for signal timing, queueing, safety and local access impacts?
- Evidence basis: Top SCATS site: DIAMOND CREEK RD / GREENSBOROUGH Highway / CIVIC; top 5 share about 44.6%.
Freight detector coverage request
- Why it appears relevant: No matched TIRTL detector sites are available for this council in the current input layer.
- Possible DTP / officer question: Can DTP provide better truck/freight evidence or detector coverage for this LGA?
- Evidence basis: TIRTL coverage gap in current matched detector layer.
| Theme | Why | Possible question |
|---|---|---|
| Intersection hotspot review | Traffic appears concentrated: the top 5 matched SCATS sites account for about 44.6% of ranked SCATS site movements. | Should the top 5 highest-pressure intersections be reviewed first for signal timing, queueing, safety and local access impacts? |
| Freight detector coverage request | No matched TIRTL detector sites are available for this council in the current input layer. | Can DTP provide better truck/freight evidence or detector coverage for this LGA? |
Data periods and interpretation
Long-period cumulative traffic signal movements from the project’s cleaned SCATS layer, labelled in these reports as 2014–2026.
Observed classified-vehicle detector records from the project’s current TIRTL layer. TIRTL coverage is corridor/detector based, not universal council-wide coverage.
SCATS and TIRTL coordinates are assigned to official council/LGA polygons. Suburb labels are geocoded/locality labels and may differ from council boundaries.
Sensor map
Bright blue circles show matched SCATS traffic signal sites. Bright orange-red circles show matched TIRTL detector sites where TIRTL coverage exists. The black outline shows the official council/LGA boundary. Sites are assigned to council areas by coordinate inside the official LGA polygon.
No matched TIRTL detector coordinates are available for this council in the current input layer. The map still shows matched SCATS sites.
Charts
Top SCATS traffic sites
Nillumbik's busiest matched SCATS sites by cumulative movements.
SCATS traffic concentration
Shows how much traffic is carried by the top five sites, next five sites and remaining sites.
Top observed TIRTL freight sites
Observed truck volumes at matched TIRTL detector sites, where coverage exists.
Matched evidence coverage
Comparison of matched SCATS sites and matched TIRTL detector sites for this council.
Top SCATS traffic sites
| Rank | Site ID | Site / intersection | Geocoded locality | Movements |
|---|---|---|---|---|
| 1 | 2816 | DIAMOND CREEK RD / GREENSBOROUGH Highway / CIVIC | Greensborough | 491.1M |
| 2 | 3339 | Diamond Creek / Plenty River | Greensborough | 291.5M |
| 3 | 4176 | Diamond Creek / Yan Yean / Aqueduct | Diamond Creek | 226.1M |
| 4 | 3352 | Main Hurstbridge / Elizabeth | Diamond Creek | 192.6M |
| 5 | 717 | MAIN near PRYOR | Eltham | 188.1M |
| 6 | 711 | Main / Wattletree / Park West | Eltham | 137.9M |
| 7 | 713 | Main / Diamond / Cecil | Eltham | 126.7M |
| 8 | 4164 | Main / Collins / Hyde | Diamond Creek | 124.1M |
| 9 | 714 | Main / Dudley | Eltham | 123.4M |
| 10 | 715 | Main / Bridge - Eltham | Eltham | 113.6M |
| 11 | 990 | Bridge / Silver | Eltham | 94.7M |
| 12 | 4189 | Hurstbridge-Main / Shopping Centre Access | Diamond Creek | 90.6M |
TIRTL freight coverage
Top observed TIRTL freight sites
No matched TIRTL detector sites for this council in the current input layer.
CSV evidence pack
Method and interpretation notes
SCATS site coordinates and TIRTL detector coordinates are assigned to official council/LGA polygons using point-in-polygon spatial joins. SCATS figures are long-period cumulative traffic signal movements from the project’s cleaned SCATS layer. TIRTL figures are observed classified-vehicle counts from matched detector sites and should be interpreted as corridor/detector evidence rather than a full council-wide truck census.
The “Geocoded suburb/locality” column comes from the site lookup/geocoding layer. It is useful for orientation, but the council assignment is controlled by the site coordinate falling within the official council/LGA polygon.
Executive summary
Nillumbik ranks 31 across Greater Melbourne councils by matched SCATS traffic movements, with 27 matched SCATS sites and 3,114.4M cumulative movements in the current project layer.
The busiest matched SCATS site is DIAMOND CREEK RD / GREENSBOROUGH Highway / CIVIC in/near Greensborough, with 491.1M movements.