Urban Traffic Management and Air Quality Project (uTRAQ)

1. The Urban Traffic Management and Air Quality Project
(uTRAQ)

2. Objective
• Monitor Traffic and Weather
• Predict Air Quality in Real Time
• Assess Mitigation Strategies
• Implement Best Strategy
• Prevent Incident
Goal: Reduction in
Air Quality Incidents

3. Detection Vs Prediction
Old Way
New Way

4. uTRAQ System
1) Gather Data
Understand current traffic
2) Simulate
Make short term Air Quality prediction
3) Decision
Assess Air Quality
Repeat with mitigation measures
4) Act
Implement measures on street
Input
Simulate
Decision
Simulate
Act

5. Input
Traffic Flows
Real Time Traffic
Data from Street
Detectors
Big Data
Historical
Records of
City Traffic
Detect Pattern of
Road Traffic
Flows
Output:
Today’s
Traffic Demand

6. Input:
Today’s
Traffic Demand
Output:
Air Quality
Prediction
Predictive Modelling
Meteorological
Atmospheric
Data from
Satellite
Observations
Simulate Traffic,
Assess Air Quality
Predict 30 mins ahead

7. Is Action
Required ?
Input:
Air Quality
Prediction
Trigger:
Assessment
Initial Decision

8. Strategy Assessment
Input:
Today’s
Traffic Demand
UTC Strategies
Select Strategy
Simulation
Simulation
Simulation

9. Act
Optimum Strategy
Implemented
On- Street
Select Strategy

10. uTRAQ Technology
Data:………. Satellite Detection
Prediction:... Aimsun Online
Air Quality:... Pollution Dispersion
IT:………….. Systems Integration

11. uTRAQ Prediction: Aimsun Online
• Network status forecasting
• Short term road traffic
forecasts (~ hrs)
• Central to Urban Traffic
Information Centre Management

12. 12
Detailed
Architecture
uTRAQ Prediction: Aimsun Online

13. Wind Vector
City
Region Background
Urban Background
Road Source
Rural Site
Suburban Site
Industrial Source
Dispersion model
tracks evolution of
emissions over time
uTRAQ Prediction: Dispersion

14. Computational fluid dynamics effects, such as street
canyons & foliage included in the dispersion model.
uTRAQ Prediction: Dispersion

15. Demonstration Sites
Building on iTRAQ-F and iTRAQ-X , demonstration users are:
• Leicestershire County Council
• Northampton County Council
• Leicester City Council
Leicestershire County
Council
Northampton County
Council
Leicester City Council
First Demonstration
Corridor
Second Demonstration
Signalised Routes
Third Demonstration
Urban Network

16. Leicestershire County Council
A6 trunk road: Oadby to outskirts of the City of Leicester

17. Northamptonshire
66 road junctions in Northampton, most use SCOOT.
Access UTMC journey times for before & after comparison

18. Leicester City Council
Most of the City of Leicester plus adjacent County sites.
122 controlled junctions, most use SCOOT

19. Page  19
uTRAQ
System

20. uTRAQ Starting View

21. Page  21
uTRAQ A6 Corridor Air Quality

22. uTRAQ A6 Corridor Traffic Congestion

23. Page  23
uTRAQ Strategy Selection

24. Page  24
uTRAQ Strategy Results

25. Page  25
uTRAQ
Status

26. Factory Acceptance Test: Passed
Site Acceptance Test: Spring 2016