4. Change the way we operate
25 July, 2018NetPReS… our journey so far4
5. Redefined Business Model
Five NEEDs:
Have a vision
Understand how we’re performing
Set targets and benchmarks
Monitor performance and trends
Use data for informed decision-making
25 July, 2018NetPReS… our journey so far5
7. Measures past performance
and compares with recent
history:
• Integrates existing data and
systems of Main Roads
• Speed and volume data from
1 Jan 2013
• Link, Route and Network
performance metrics
• Scalable, accessible,
efficient, secure cloud-based
system.
What is NetPReS?
25 July, 2018NetPReS… our journey so far7
8. Data Structure
1,000 links defined across the PMSRN
Speed and volume data for each link
15 minute intervals back to 01/01/2013
200M records of historical data
Currently growing at a rate of over 100,000 records per
day
25 July, 2018NetPReS… our journey so far8
9. Why Speed and Volume?
9
We can calculate:
VKT
VHT
Journey Times
Journey Reliability
Cost of Delay
Vehicle Operating Costs
Cost of TT Variability
Cost of Emissions
Flow
Density
Enough data enables:
Trends
Comparisons
Monitoring
Reporting
Data Driven
Decision Making
25 July, 2018NetPReS… our journey so far
10. Data Source: VDS
10
Freeway Vehicle Detection Stations
Spot measure of speed and volume every 500m
Next day availability
25 July, 2018NetPReS… our journey so far
11. Data Source: SCATS
11
Volumes at traffic signal approaches
No speed
Tendency to undercount
Not designed for
counting purposes
25 July, 2018NetPReS… our journey so far
12. Data Source: GPS Tracked Vehicle Data
12
Various commercial providers
Speed only (no volume)
Small sample rate (2%-10%)
No samples means no data
25 July, 2018NetPReS… our journey so far
13. Data Source: Traffic Surveys
13
Typically spot counts
Typically short term (temporary)
Typically pneumatic tubes
Speed, volume and vehicle class
25 July, 2018NetPReS… our journey so far
16. Filtering and Fusing
16
NPI
Good
Intelematics
Good
IRIS
Good
Speed Processing
No No No No data to process. Speed is created by data patching.
No No Yes Fused speed = IRIS speed
No Yes No Fused speed = Intelematics speed
No Yes Yes
Fused speed = Best quality of Intelematics & IRIS speed,
otherwise
Fused speed = Average (Intelematics speed, IRIS speed)
Yes No No Fused speed = NPI speed
Yes No Yes
Fused speed = Best quality of NPI & IRIS speed, otherwise
Fused speed = Average (NPI speed, IRIS speed)
Yes Yes No
Fused speed = Best quality of NPI & Intelematics speed,
otherwise
Fused speed = Average (NPI speed, Intelematics speed)
Yes Yes Yes Fused speed = Average (best quality speed data)
25 July, 2018NetPReS… our journey so far
17. Patching Methods
17
1. Adjacent link methods
2. Historical data methods
3. Alternative historical
adjacent link
patching methods
25 July, 2018NetPReS… our journey so far
18. Final Result: The Reporting Database
18 25 July, 2018NetPReS… our journey so far
19. Use Case 1: Performance Reporting
19 25 July, 2018NetPReS… our journey so far
20. Use Case 1: Performance Reporting
20 25 July, 2018NetPReS… our journey so far
21. Use Case 2: Impact Analysis
21 25 July, 2018NetPReS… our journey so far
22. Use Case 2: Impact Analysis
22 25 July, 2018NetPReS… our journey so far
23. Use Case 2: Impact Analysis
23 25 July, 2018NetPReS… our journey so far
24. Use Case 2: Impact Analysis
24 25 July, 2018NetPReS… our journey so far
25. Use Case 2: Impact Analysis
25 25 July, 2018NetPReS… our journey so far
26. Use Case 2: Impact Analysis
26 25 July, 2018NetPReS… our journey so far
