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Effects on road construction caused by climat changes

Effects on road construction caused by climat changes. Effects are related to: Rutting ( Spårbildning) Unevenness (Ojämnheter) Longevity/ageing (Beständighet/åldrande) Most important climat factors: Temperature (mean temperatur, high temperature and durability of frozen ground)

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Effects on road construction caused by climat changes

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  1. Effects on road construction caused by climat changes Effects are related to: Rutting (Spårbildning) Unevenness (Ojämnheter) Longevity/ageing (Beständighet/åldrande) Most important climat factors: Temperature (mean temperatur, high temperature and durability of frozen ground) Precipitation, evapotranspiration and runoff

  2. Difference in run off (Precipitation -evapo-transpiration), SGU 2071-2100

  3. Conclutions: • The problem will be focused on temperature and water issues rather than frozen ground • It´s hard to know what it´s mean to the costs

  4. Spår (rutting)

  5. Unevenness

  6. Longevity, constancy, durability / ageing) • Inget tillräckligt underlag för generella uppdelningar på orsaker • Inga entydiga riktningar på klimatpåverkan eller från förändrat klimat

  7. Uncertein factors: • Motsvarar dagens underhåll dagens behov? • Fundamentalt om man vill göra en uppskattning av framtida kostnader/kostnadsförändringar • Osäkerheter i givna klimatscenarier • Kombinationen av mer nederbörd vintertid (regn istället för snö) och mindre tjäle medför troligen ökade vattenhalter i marken. Detta framgår inte från givna klimatscenarier

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