Air Quality and Noise - synergies and conflicts (Nigel Kerr, Glasgow City Council)

Air Quality & Noise Air Quality & Noise –– Synergies & Conflicts Synergies & Conflicts

Nigel Kerr, Group Manager (Public Health)Nigel Kerr, Group Manager (Public Health)Environment & SustainabilityEnvironment & SustainabilityGlasgow City CouncilGlasgow City Council

Email: Email: nigel.kerr@glasgow.gov.uknigel.kerr@glasgow.gov.uk

Tel: 0141 2876528 Tel: 0141 2876528

Air Quality in GlasgowAir Quality in Glasgow

Four Four AQMAsAQMAs have been have been declared within Glasgowdeclared within Glasgow

City Centre AQMA initially City Centre AQMA initially designated due to designated due to exceedanceexceedance of annual mean of annual mean NONO22 objective. Later objective. Later amended to also include amended to also include PMPM1010

AQMA for PM10 now covers AQMA for PM10 now covers whole of GCC areawhole of GCC area

The The ParkheadParkhead Cross and Cross and Byres Road / Dumbarton Byres Road / Dumbarton Road Road AQMAsAQMAs were declared were declared for NOfor NO22

Air QualityAir Quality

Low Emission ZonesLow Emission Zones Bus EmissionsBus Emissions Cleaner Taxis Cleaner Taxis Idling VehiclesIdling Vehicles Emission TestingEmission Testing Council Workplace Travel PlanCouncil Workplace Travel Plan Construction SitesConstruction Sites Domestic EmissionsDomestic Emissions Promote Greener VehiclesPromote Greener Vehicles Planning GuidancePlanning Guidance Leading by ExampleLeading by Example Air Quality InformationAir Quality Information Car ClubsCar Clubs Tree PlantingTree Planting

LEZsLEZs –– reduction in NO2 emissions within reduction in NO2 emissions within City CentreCity Centre

TheThe EnvironmentalEnvironmental NoiseNoise DirectiveDirective andandScotlandScotland

END is about developing a common approach to END is about developing a common approach to reduce on a reduce on a prioritisedprioritised basis exposure to noisebasis exposure to noise

A gradual process made up of 3 stagesA gradual process made up of 3 stages•• MappingMapping•• Making information available to publicMaking information available to public•• Action planning with aim of managing noise as Action planning with aim of managing noise as

appropriate as well as preserving quiet areas in appropriate as well as preserving quiet areas in agglomerationsagglomerations

Air Quality Air Quality vsvs Noise Action PlanningNoise Action Planning

BPS Process

BPS Process

The Building Prioritisation Score (BPS)The Building Prioritisation Score (BPS) The Building Prioritisation Score (BPS) is an individual value aThe Building Prioritisation Score (BPS) is an individual value assigned to ssigned to

each building. The input factors for the BPS are as follows:each building. The input factors for the BPS are as follows: Building use (only residential considered at this stage, althougBuilding use (only residential considered at this stage, although other h other

building types could be considered)building types could be considered) Appropriate strategic noise level at building (for the particulaAppropriate strategic noise level at building (for the particular noise metric r noise metric

being assessed).being assessed).–– The number of properties within each buildingThe number of properties within each building–– The population densityThe population density–– The Annoyance responseThe Annoyance response

The BPS for each building is then calculated as follows:The BPS for each building is then calculated as follows:

BPS = (Noise level at building + 10 x logBPS = (Noise level at building + 10 x log1010 (number of people (number of people annoyed)annoyed)

–– where:where:

–– Noise Level at building = Noise Level at building = LdenLden–– Number of people annoyed = (NA x PA x A) / 100Number of people annoyed = (NA x PA x A) / 100–– where:where:

NA = Number of address points within buildingNA = Number of address points within building PA = Population per addressPA = Population per address A = % people annoyedA = % people annoyed

ExamplesExamples

Property 1 Berkeley Street (Adjacent to M8 in Glasgow)Property 1 Berkeley Street (Adjacent to M8 in Glasgow) Noise level at building ........................................Noise level at building .................................................... ............ LdenLden 80.9 dB80.9 dB No. of Address Points within building (NA) .....................No. of Address Points within building (NA) ....................................... 16.................. 16 Population per Address (PA) ....................................Population per Address (PA) ........................................................ 2.36.................... 2.36 % people likely to be annoyed by road traffic noise (A) ........% people likely to be annoyed by road traffic noise (A) ................... 79.7........... 79.7 BPS ........................ 80.9 + (10 x log10((16 x 2.36 x 79.BPS ........................ 80.9 + (10 x log10((16 x 2.36 x 79.7)/100)) = 95.77)/100)) = 95.7

Property 2 309 Great Western Road, GlasgowProperty 2 309 Great Western Road, Glasgow Noise level at building ........................................Noise level at building .................................................... ............ LdenLden 72.1 dB72.1 dB No. of Address Points within building (NA) .....................No. of Address Points within building (NA) ......................................... 6.................... 6 Population per Address (PA) ....................................Population per Address (PA) ........................................................ 2.36.................... 2.36 % people likely to be annoyed by road traffic noise (A) ........% people likely to be annoyed by road traffic noise (A) ................... 52.3........... 52.3 BPS ......................... 72.1 + (10 x log10((6 x 2.36 x 52.BPS ......................... 72.1 + (10 x log10((6 x 2.36 x 52.3)/100)) = 80.73)/100)) = 80.7

SPS Process

SPS Process

Source Prioritisation Score (SPS) for Roads and RailSource Prioritisation Score (SPS) for Roads and Rail•• Building Building PrioritisationPrioritisation Score (BPS) derived from noise levels, number Score (BPS) derived from noise levels, number

of receptors and annoyance response at buildingsof receptors and annoyance response at buildings

•• Road and rail network allocated into 100m segmentsRoad and rail network allocated into 100m segments

•• Model relates each building with noise level >55dB to the nearesModel relates each building with noise level >55dB to the nearest t

source line (road/rail) segmentsource line (road/rail) segment

•• Source Source PrioritisationPrioritisation Score (SPS) calculated for each segment by Score (SPS) calculated for each segment by

logarithmic sum of BPS scores for each building linked to each logarithmic sum of BPS scores for each building linked to each

segmentsegment

•• From statistical analysis of data, highest three 1% bands of SPSFrom statistical analysis of data, highest three 1% bands of SPS

scores taken forward to represent areas of greatest noise exposuscores taken forward to represent areas of greatest noise exposurere

•• Highest 1% of SPS (for road and rail) identified as Candidate NoHighest 1% of SPS (for road and rail) identified as Candidate Noise ise

Management Areas (Management Areas (CNMAsCNMAs))

•• CNMAsCNMAs form the basis for form the basis for prioritisationprioritisation of actionsof actions

Bus Priority LanesBus Priority Lanes

Park and RidePark and Ride

Speed limit changesSpeed limit changes

Physical activity

Air pollution & Noise

And by the way…

Infrastructure costs Social capital

CO2emissions

Depression

Injuries

Osteoporosis

Q & A & DiscussionQ & A & Discussion