| setting_key | setting_value | comment |
|---|---|---|
| rut | 3 | Assumed 'settling in' value for Naasra (roughness) after construction. This value plays a role in determining the slope of the estimated historical deterioration rate |
| naasra | 70 | Assumed 'settling in' value for rutting after construction. This value plays a role in determining the slope of the estimated historical deterioration rate |
Settling-In Values
Overview
Parameters held in under the settling_in_values lookup set key comprise constants that are used the estimation of historic rutting and roughness deterioration rates. The settling in values are pressumed to represent the initial rut and roughness values soon after construction.
By subtracting these settling-in values from the current rut and roughness value and then considering the surface age, an approximate estimation of the current rut and roughness deterioration rate is obtained for use in the initial stages of the element’s deterioration.
Lookup Set Key
The key to identify this set in the model code is ‘settling_in_values’ (case-sensitive)
Change Level
Parameters held under the settling_in_values lookup set generally do NOT need to be modified for each network.
Lookup Parameters
Parameters contained in this lookup set are detailed below. Note that parameter keys are case-sensitive.
Important
Values shown under the column ‘setting_value’ are defaults/example values. You should take responsibility to understand and modify these values for each project based on your specific network configuration.