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IP0247 - Winter maintenance – why do we have limits ? slope, skid resistance, snowfall rate, truck type, and cycle times
According to the guidelines in Austria highways and motorways had to be projected with a maximum longitudinal slope of 6 per cent to ensure a homogeneous traffic flow and avoid problems in winter maintenance. Although most routes have a maximum longitudinal slope of 4 percent there are two routes with a 6 per cent longitudinal slope (A13 Brenner and A 21 Steinhäusl & Gießhübl) with periodic closures [...]
