Presentation by Drew Hill, Transport Scotland

1. LEZ Summit
NOx and the City
Technical Solutions
Working together on modelling, measuring and monitoring
Drew Hill
Transport Scotland

2. By
2050Scottish towns and cities will be
free from the damaging emissions
of petrol and diesel fuelled vehicles

3. “There is no question of
getting rid of cars.
Instead we must change
the type of cars we use -
smaller, lighter, more fuel
efficient models with less
cradle to grave CO2
emissions.”
Stephen Glaister, 2009
A view
Professor of Transport and
Infrastructure, Imperial College London.

4. Low carbon 2011 Low carbon prediction
2.3M cars in 2011.
12% at less than 130g/km.
1% at less than 95g/km.
Perhaps fleet peaking
Vehicle demographics
A mix of low emission propulsion technologies
may develop to contribute to largely decarbonise
transport by 2050

5. • DfT predict road traffic growth at 44% over the next 25 years.
• Road transport NOX and PM10 emissions forecast to fall substantially
by 62% and 93% respectively. (NRTF)
Vehicle demographics
2011

6. Microsimulation –
predict and confirm
• Model the area
• Measure the traffic
• Audit, calibrate, validate
• Run the model
• Evaluate the outputs
• Share the data and model with others
• Test air quality action plan using the model

7. Microsimulation – Models and data vigilance

8. Sensors – Various market options
MotesOpsis AQMesh
Emote -
pervasive
sensing
device.
Developed as
part of the
Message
project.
Small low
cost wireless
Further
development
of Emotes.
Complete
data system.
In beta testing
phase.
Linked to
CARBOTRAF
But…what
metric for
traffic
trigger
PM10
PM2.5
Black carbon
NOX
CO
Founded in
1985 in
Sweden (PhD
project)
Optical
absorption
spectroscopy.
Tunable diode
laser
technology.
Respira
State of development
Low-cost
multi-
environmental
sensor device
for urban
spaces.
wireless node
measures CO
and NO2
levels,
temperature
and humidity.

9. • Validation of microsimulation
outputs very important and
ongoing
• Calibration of data important
for active decision making
• Super sites (Bargeddie) and
E-Motes (Perth) play part of
the process
Sensor use in Scotland
Perth and
Kinross

10. Current research - S3C Bid

11. Current research - Eureka Footprint project

12. Current research - Rotating Sensor Programme

13. Current research - Rotating Sensor Programme

15. Questions
How can you contribute
What is the best metric for traffic
What messages should we send to the public
Will messages change behaviour