Emissions from road transport: monitoring mitigation actions
Dr Teresa Raventos, Prof Paul Monks, Dr Zoe Fleming
Breathe easy – engineering air quality solutions21 October 2016
Department of Chemistry, University of Leicester andNational Centre for Atmospheric Science (NCAS)
Leicester & Leicestershire Transport
Scheme
Fluid Congestion
Traffic flow
European Regulations on Air Quality: NO2 yearly mean: 40 ug/m3
NO yearly mean: 30 ug/m3
Usual approach with respect to road
traffic: Low Emissions Zones
Ban of through traffic
Ban of heavy vehicles
To measure the potential improvements
of air quality: Use of a small low-cost air quality
monitor (AQMesh)
Concentration of gaseous
pollutants released by car traffic
(NO2, NO, CO and O3) before and after the works.
Transport planning scheme to improve
traffic at the roundabouts of A50 in Leicester
2
Model based on
regulatory variablesPredicted congestion
increase by 60% in 10
years
3
Benchmark of the
importance of
interventions:
Modelled by
councils
Long term
expected
impact at
different levels
Following
national
parameters
(DfT)
Measurement of pollutants in key locations
of road infrastructure interventions
Deployment of small sensors to follow up on road interventions
Assessment of the ‘experimental’ sensors where other traditionalmobile equipment is not suitable due to
geospatial dispersion required & high number of monitors
the length of measurements (months /years) AQMesh
4
Pollution Profiles at the Site 5
The AQMeshes
electrochemical
sensors were
calibrated at the
AURN site
(background
urban)
Four AQMeshes
are installed at the
exits of the
roundabouts 3 Km
from the AURN
station.
Variation of NO and traffic
volume
0
10
20
30
40
50
60
0
1
2
3
4
5
12:00:00 AM 12:00:00 PM 12:00:00 AM
NO
(p
pb
) an
d S
pe
ed
(m
/h)
Nu
mb
er
of
veh
icle
s N
orm
alis
ed
Glenfield Tue 2.06.2015 AQM#3
Number of Vehiclesin all directions
From Leicester (cold engine) To Leicester (hot engine)
Speed NO (ppb)
6
Traffic management
measures against
traffic to reduce
pollution Optimisation of
traffic flow
Change traffic
volume daily profile
Monitoring after
measures are
implemented Measures are
efficient for reduction
of pollution
Stop-start vehicles
has major impact
Spatial and temporal information
allows to understand air pollution in
urban areas
Space for Smarter
Government (UKSA)
Satellite Applications
Catapult
University of Leicester
a web platform to
inform on urban
roads with
concentrations of
pollution
The AQHSM is a bespoke tool using satellite data to
improve local authority information by integrating
state of the art Copernicus MACC II regional air
quality feeds with a range of local data
7
HGV route planner Improving efficiency of heavy goods vehicles movement in urban environments
The Saturn HGV
Route Planner is a
tool for Android
and desktop to
advice HGV of
appropriate routes
and help reduce
congestion and air
pollution spots.
Data from local
authorities.
8
THANK YOU.
Acknowledgements:
University of Leicester :Zoe Fleming, Cedric Dechoux, Brandon Heard, Dr Rebecca Cordell
Environmental Instruments(http://www.env-inst.com/)
Leicester City Council Council Team and Neal Edwards
Leicestershire County CouncilSonny Tolofari, Alex Gray, Duncan Forbes
Transport System Catapult Robin North
9