Extreme weather condition resistant road design
Design standards that take into account extreme seasonal weather conditions
The changing climate generally means drier and hotter summers, more heavy rainfall and wetter winters and especially in the northern countries more freeze-thaw cycles.
These effects are visible at present and cannot be neglected. It is necessary to change the design parameters in order to cope with these effects.
The following design parameters have to be adjusted:
• Drainage and treatment (pit) system capacity
• Water absorption and drainage capacity of roadside soils
• Geotechnical parameters for road constructions in relationship to drought, heavy rainfall, freezing,
• Integrated design parameters to cope with all weather systems
The process of adjusting the parameters is already in progress and has been partly finished.
The project includes the program to adjust the whole of parameters that are needed to be changed.
Phases of the project are:
# assessment of possible problems
# available design parameters
# adjusting the parameters and implementing them in the process.