| setting_key | setting_value | comment |
|---|---|---|
| rl | 60 | Expected effective pavement life after a pavement renewal treatment |
| rm | 50 | Expected effective pavement life after a pavement renewal treatment |
| rh | 40 | Expected effective pavement life after a pavement renewal treatment |
| ul | 90 | Expected effective pavement life after a pavement renewal treatment |
| um | 75 | Expected effective pavement life after a pavement renewal treatment |
| uh | 60 | Expected effective pavement life after a pavement renewal treatment |
Pavement Expected Life
Overview
Parameters held in under the pavement_expected_life lookup set define the expected pavement life (in years) assigned to a pavement after Rehabilitation. Pavement life is assigned based on a combination of the Urban/Rural and Road Traffic Volumne class (Low, Medium or High). This is an important lookup since the assigned pavement life is used to determine remaining life which in turn affects the probability of distress which in turn affects the time to distress initiation.
Lookup Set Key
The key to identify this set in the model code is ‘pavement_expected_life’ (case-sensitive)
Change Level
Parameters held under the pavement_expected_life 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.
For this table, the keys are short codes expressing the Urban/Rural situation (‘u’ or ‘r’) and then the relative Traffic Volume (‘l’, ‘m’ or ‘h’ denoting Low, Medium or High). Thus a code ‘’rh’ denotes Rural, High Volume.
The assignment of Traffic Class is made on the basis of the ONRC category of the road. See this page for details on how ONRC categtories are mapped to ‘Low’, ‘Medium’ or ‘High’ classes.
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.