ºÝºÝߣ

ºÝºÝߣShare a Scribd company logo

European approaches to transport data collection and analysis for strategic policy and impact evaluation

•Download as PPTX, PDF•
•
Ricardo Energy & Environment
Ricardo Energy & Environment

Presentation by Ricardo-AEA's Transport Practice Director, Sujith Kollamthodi. Presented at the Transport Research Board 92nd Annual Meeting, Wednesday 16 January, Washington DC

1 of 12
Download to read offline
European approaches to transport data collection and analysis for strategic policy and impact evaluation TRB 92nd Annual Meeting Session 824: Transport data program development: International best practices – Part 2 16th January 2013 Sujith Kollamthodi Practice Director – Sustainable Transport Ricardo-AEA Limited
Overview • Ricardo-AEA is responsible for annually compiling the UK’s National Atmospheric Emissions Inventory • Key part of this is the road transportation emissions inventory • Complexity of the road transportation sector means that multiple data sources are required to provide accurate estimates • New techniques and data sources are enabling us to make significant improvements to these inventories
Basic methodology Emissions from each = Emission Factor X Activity vehicle type (Tonnes per year) (grams/km or g/kg fuel (vkm traveled or kg fuel consumed) 1.4 1.2 NOx (g/km) 1.0 0.8 Emission factor 0.6 determinants: 0.4 0.2 •pollutant type Emission 0.0 •vehicle type factors 0 50 100 150 •vehicle size (engine •hot exhaust Speed (kph) size/weight) •cold start •vehicle age •evaporative •retrofit technology EMISSIONS •fuel type •fuel quality • tonnes/yr (UK) •fuel volatility Activity data • 1x1 km maps •speed •km traveled/yr •temperature •fuel •degradation consumption/yr •trip length
Road transport inventory – coverage and level of disaggregation Pollutants • CO2, CH4, N2O, Fuel consumption • NOx, PM10, PM2.5, CO, VOCs, benzene, 1,3- butadiene, SO2, NH3, primary NO2, PAHs… Vehicle types • Petrol and diesel cars • Petrol and diesel vans • Rigid and artic HGVs • Buses and coaches • Motorcycles Road types • Urban • Rural • Motorway
Activity data Annual vehicle km data • Department for Transport (DfT) traffic census: for Great Britain, with disaggregation for England, Scotland, Wales Vehicle Speed data • DfT traffic census Vehicle sales and fleet composition data (DfT Licensing Statistics) • % diesel cars • % by age (to derive fleet composition by emissions standard) • Technology, retrofits Fuel consumption data from UK official fuel sales statistics • Gasoline, diesel, LPG , natural gas • Bottom-up estimates reconciled with top-down fuel sales data
Road traffic by vehicle type and road class Road traffic by vehicle type and road class in Great Britain 2011 (Billion vehicle kilometers) Cars and Motor- Buses & Goods All motor taxis cycles coaches Light vans vehicles vehicles Motorways 2 75.0 0.4 0.4 12.5 11.2 99.5 Rural 'A' roads: Trunk 3 44.3 0.4 0.3 7.9 5.2 58.1 Principal 66.2 0.8 0.6 11.4 4.1 83.1 All rural 'A' roads 110.5 1.1 0.9 19.3 9.3 141.2 1 Urban 'A' roads: Trunk 3 4.3 - - 0.7 0.3 5.4 Principal 60.5 0.8 1.1 9.2 2.3 73.9 All urban 'A' roads 64.7 0.8 1.2 9.9 2.6 79.3 4 All major roads 250.3 2.4 2.5 41.7 23.0 319.9 Minor roads: Minor rural roads 52.8 0.8 0.5 10.8 1.4 66.3 Minor urban roads 1 84.3 1.5 1.7 14.0 1.2 102.7 All minor roads 137.1 2.3 2.1 24.9 2.6 169.0 ALL ROADS 387.4 4.6 4.7 66.6 25.6 488.9 Information required by 31st August each year: all years back to 1990 on a consistent basis
Mapping fuel use and emissions Emissions mapped using • OS UK Road Network Links • DfT traffic census count-point data • Speed data from automatic traffic counters OS Road Network • VKM traveled statistics DfT Traffic Links Flows & VKM Implied UK-average emission factors for Average Emission Factors by many different road types Road Type • 1x1 km emission maps • Local Authority Fuel Use Statistics to support provision of sub-national energy trends • Local Authority CO2 end user emissions
Scoping Study on use of Automatic Number Plate Recognition (ANPR) data Current situation • Vehicle fleet composition estimates based on licensing data, vehicle survival functions, mileage-with-age profiles • No regional or road-type variations, except assumption that higher mileage for diesel cars on rural roads/motorways than on urban roads NAEI analysis of ANPR data • Variation in petrol/diesel car mix by region and road type • Variation in age distribution for cars, vans and heavy duty trucks by region and road type
Scoping Study on use of Automatic Number Plate Recognition (ANPR) data ANPR data: Proportion of car fleet on urban roads comprising diesel cars in different regions of the UK: 2007-2010 East of England 40% East Midlands London 35% North East North West 30% South East South West West Midlands 25% Yorkshire/Humber Scotland 20% 2006 2007 2008 2009 2010 Wales
Benefits of using ANPR data Improved emissions for both AQ and GHG inventories Country-specific Improved fleet inventories for GHG composition emissions from road data transport Improvements to the UK’s National Transport Model and Improvements to Local road scheme Authority Air Quality assessment tools Review and Assessments, Air Quality Action Plans and Local Authority CO2 inventories
Summary • UK road transportation emissions inventory relies on a huge amount of traffic and vehicle data supplied by the UK Department for Transport • Continuous improvement of the methodologies used means that the current approach has a high level of accuracy • ANPR data can help further improve transportation inventories by providing better resolution at the regional and local level
Sujith Kollamthodi Practice Director – Sustainable Transport Ricardo-AEA Limited The Gemini Building Fermi Avenue Harwell Oxfordshire OX11 0QR United Kingdom Tel: +44 (0)870 190 6513 E: sujith.kollamthodi@ricardo-aea.com W: http://www.ricardo-aea.com Copyright Ricardo-AEA Ltd This presentation is submitted by Ricardo-AEA. It may not be used for any other purposes, reproduced in whole or in part, nor passed to any organisation or person without the specific permission in writing of the Commercial Manager, Ricardo-AEA Ltd.

More Related Content

European approaches to transport data collection and analysis for strategic policy and impact evaluation

  • 1. European approaches to transport data collection and analysis for strategic policy and impact evaluation TRB 92nd Annual Meeting Session 824: Transport data program development: International best practices – Part 2 16th January 2013 Sujith Kollamthodi Practice Director – Sustainable Transport Ricardo-AEA Limited
  • 2. Overview • Ricardo-AEA is responsible for annually compiling the UK’s National Atmospheric Emissions Inventory • Key part of this is the road transportation emissions inventory • Complexity of the road transportation sector means that multiple data sources are required to provide accurate estimates • New techniques and data sources are enabling us to make significant improvements to these inventories
  • 3. Basic methodology Emissions from each = Emission Factor X Activity vehicle type (Tonnes per year) (grams/km or g/kg fuel (vkm traveled or kg fuel consumed) 1.4 1.2 NOx (g/km) 1.0 0.8 Emission factor 0.6 determinants: 0.4 0.2 •pollutant type Emission 0.0 •vehicle type factors 0 50 100 150 •vehicle size (engine •hot exhaust Speed (kph) size/weight) •cold start •vehicle age •evaporative •retrofit technology EMISSIONS •fuel type •fuel quality • tonnes/yr (UK) •fuel volatility Activity data • 1x1 km maps •speed •km traveled/yr •temperature •fuel •degradation consumption/yr •trip length
  • 4. Road transport inventory – coverage and level of disaggregation Pollutants • CO2, CH4, N2O, Fuel consumption • NOx, PM10, PM2.5, CO, VOCs, benzene, 1,3- butadiene, SO2, NH3, primary NO2, PAHs… Vehicle types • Petrol and diesel cars • Petrol and diesel vans • Rigid and artic HGVs • Buses and coaches • Motorcycles Road types • Urban • Rural • Motorway
  • 5. Activity data Annual vehicle km data • Department for Transport (DfT) traffic census: for Great Britain, with disaggregation for England, Scotland, Wales Vehicle Speed data • DfT traffic census Vehicle sales and fleet composition data (DfT Licensing Statistics) • % diesel cars • % by age (to derive fleet composition by emissions standard) • Technology, retrofits Fuel consumption data from UK official fuel sales statistics • Gasoline, diesel, LPG , natural gas • Bottom-up estimates reconciled with top-down fuel sales data
  • 6. Road traffic by vehicle type and road class Road traffic by vehicle type and road class in Great Britain 2011 (Billion vehicle kilometers) Cars and Motor- Buses & Goods All motor taxis cycles coaches Light vans vehicles vehicles Motorways 2 75.0 0.4 0.4 12.5 11.2 99.5 Rural 'A' roads: Trunk 3 44.3 0.4 0.3 7.9 5.2 58.1 Principal 66.2 0.8 0.6 11.4 4.1 83.1 All rural 'A' roads 110.5 1.1 0.9 19.3 9.3 141.2 1 Urban 'A' roads: Trunk 3 4.3 - - 0.7 0.3 5.4 Principal 60.5 0.8 1.1 9.2 2.3 73.9 All urban 'A' roads 64.7 0.8 1.2 9.9 2.6 79.3 4 All major roads 250.3 2.4 2.5 41.7 23.0 319.9 Minor roads: Minor rural roads 52.8 0.8 0.5 10.8 1.4 66.3 Minor urban roads 1 84.3 1.5 1.7 14.0 1.2 102.7 All minor roads 137.1 2.3 2.1 24.9 2.6 169.0 ALL ROADS 387.4 4.6 4.7 66.6 25.6 488.9 Information required by 31st August each year: all years back to 1990 on a consistent basis
  • 7. Mapping fuel use and emissions Emissions mapped using • OS UK Road Network Links • DfT traffic census count-point data • Speed data from automatic traffic counters OS Road Network • VKM traveled statistics DfT Traffic Links Flows & VKM Implied UK-average emission factors for Average Emission Factors by many different road types Road Type • 1x1 km emission maps • Local Authority Fuel Use Statistics to support provision of sub-national energy trends • Local Authority CO2 end user emissions
  • 8. Scoping Study on use of Automatic Number Plate Recognition (ANPR) data Current situation • Vehicle fleet composition estimates based on licensing data, vehicle survival functions, mileage-with-age profiles • No regional or road-type variations, except assumption that higher mileage for diesel cars on rural roads/motorways than on urban roads NAEI analysis of ANPR data • Variation in petrol/diesel car mix by region and road type • Variation in age distribution for cars, vans and heavy duty trucks by region and road type
  • 9. Scoping Study on use of Automatic Number Plate Recognition (ANPR) data ANPR data: Proportion of car fleet on urban roads comprising diesel cars in different regions of the UK: 2007-2010 East of England 40% East Midlands London 35% North East North West 30% South East South West West Midlands 25% Yorkshire/Humber Scotland 20% 2006 2007 2008 2009 2010 Wales
  • 10. Benefits of using ANPR data Improved emissions for both AQ and GHG inventories Country-specific Improved fleet inventories for GHG composition emissions from road data transport Improvements to the UK’s National Transport Model and Improvements to Local road scheme Authority Air Quality assessment tools Review and Assessments, Air Quality Action Plans and Local Authority CO2 inventories
  • 11. Summary • UK road transportation emissions inventory relies on a huge amount of traffic and vehicle data supplied by the UK Department for Transport • Continuous improvement of the methodologies used means that the current approach has a high level of accuracy • ANPR data can help further improve transportation inventories by providing better resolution at the regional and local level
  • 12. Sujith Kollamthodi Practice Director – Sustainable Transport Ricardo-AEA Limited The Gemini Building Fermi Avenue Harwell Oxfordshire OX11 0QR United Kingdom Tel: +44 (0)870 190 6513 E: sujith.kollamthodi@ricardo-aea.com W: http://www.ricardo-aea.com Copyright Ricardo-AEA Ltd This presentation is submitted by Ricardo-AEA. It may not be used for any other purposes, reproduced in whole or in part, nor passed to any organisation or person without the specific permission in writing of the Commercial Manager, Ricardo-AEA Ltd.