2.4 Sébastien Marcocci - CEDR public website...Microsoft PowerPoint - 2.4 Sébastien...
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CEDR SYMPOSIUM MANAGEMENT OF NOISE BARRIERS TO AVOID PROBLEMS IN THE FUTURE
MARCOCCI SÉBASTIENNOISE DIVISIONDEPARTMENT OF TECHNICAL EXPERTISESGENERAL DIRECTORATE OF ROADS AND BUILDINGS - SPW
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1. HERITAGE
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2. EXPERIENCE IN WALLONIA …• Wallonia ?
900km Highways7000km Regional roads71 000km Local roads
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• Questions– Where?– What kind?– Which condition?
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3. HOW TO CARACTERISE?• Which tools?
– 1793-5 and 1793-6 : in situ caracterisation– Structural and material inspections– Fast visual checks
• Why?• Goals?
– Define « Health indecator »– Easy and complete tool– Objective analysis
• How to do that?– Development of methodology– Experience of directory in inspection of bridges
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4. METHODOLOGY OF INSPECTION • 3 main-documents• 1 report
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• From the report to the « Health indicator »
Structural and stability aspects
• Absorbing materials• Sound insulationAcousticalaspects
Settings of elements
• Rust• Gap between elementsVisual aspects
A B C D
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• Results– 60km noise barriers
• Question 1 : Health ? • Question 2 : Protection enough ?
5. HOW TO DEAL WITH THE OLD DEVICES?
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• Crossing databases
Restore Upgrade
Noise mapsHotspotsNoise barriersdatabase
42% 58%
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• Overview– Budgetary needs– Scenario
• 5 years : « A-B » « A »• 10 years : « B » « A »• 15 years : « B-C » « A »• …
€ 0,00€ 2.000.000,00€ 4.000.000,00€ 6.000.000,00€ 8.000.000,00
€ 10.000.000,00€ 12.000.000,00€ 14.000.000,00€ 16.000.000,00
Budget auj Dans 5 ans Dans 10 ans Dans 15 ans Dans 20 ans
AA A-BA A-B BA A-B B B-CA A-B B B-C CTOTAL cumulé
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6. HOW TO DEAL WITH THE NEW DEVICES?• Technical requirements• Factory auditing• Verifications
– When?Directlyafterinstallation
Before end of garantyperiod
Periodicalinspection
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7. CONCLUSIONS AND FUTURE PERSPECTIVES• Management
– Overview– Restore or upgrade– Health indicator– Budgetary needs
• Verifications• Technical requirements
– Know your past to build the future• Future
– Verifications– In situ measurements
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