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Introduction to the AAPA 2011 Study Tour

Introduction to the AAPA 2011 Study Tour. Itinerary. 3 rd to 19 th September 2011 Tour group 9 Australian roads people Researchers / State & LG Road Officials / Consultants Industry representatives / Asphalt suppliers Wide range of experience

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Introduction to the AAPA 2011 Study Tour

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  1. Introduction to theAAPA 2011 Study Tour

  2. Itinerary • 3rd to 19th September 2011 • Tour group 9 Australian roads people • Researchers / State & LG Road Officials / Consultants • Industry representatives / Asphalt suppliers • Wide range of experience • Skilled including professional engineers & technologists • Five legs • Cape Town / Pretoria / Durban / CAPSA’11 / KNP • Four key issues

  3. Key Issues • Surface Treatments • Sprayed seals | Slurry seals | Surface rejuvenation • Binders • use of bitumen rubber in sprayed seals and asphalt wearing courses, availability and specification requirements including quality control measure to ensure compliance. • Improving pavement performance • modelling, accelerated testing, design methods & models, foam bitumen stabilisation and bitumen treated base experience and transfer of high modulus asphalt technology to RSA • Sustainability • recycling, warm mix asphalt, efforts to reduce carbon footprint, carbon calculators and impacts for road asset management

  4. Comparisons In Africa, man is still part of the food chain

  5. Statistics

  6. ComparisonsLand area sq.kmSA: 1 219 912 A: 7 686 850 PopulationSA: est 49m A: est 21mRoads km totalSA: 362 099 A: 813 000 Surfaced kmSA: 73 506 A: 341 488Road AuthoritiesSA: 9 provinces + national A: 6 states, 2 territories + federal Road Budget Total (est)SA: U$ 275 million A: U$ 3500 million data ex CIA, AustRoads & Sabita ~ 2800 km ~ 1500 km ~ 1400 km ~ 3800 km

  7. Road Train Load 166 tons (before overloading)98 wheels 53.5m long 650 hp on three driving axles

  8. ROAD TRAINS / WEAK PAVEMENTS

  9. Pavement Inundation

  10. COMPARISONSSUMMARYBoth: Southern Hemisphere Different to Europe & North AmericaSimilar: traffic, climate, technology same suppliersDifferent: funding, socio-political dynamic“commercialised” agencies opportunities to innovate SAT, Educational Chair, RPF tyre pressure, user demands Potentials: higher education, sharing technology & experience Sport: rugby, cricket, professionalism

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