Candidate Selection

Overview

Parameters held in under the candidate_selection lookup set key comprise constants that are used to filter out non-viable elements before the model proceeds to the Trigger and Optimisation stages.

For more details about Candidate Selection, see this page

Lookup Set Key

The key to identify this set in the model code is ‘candidate_selection’ (case-sensitive).

Change Level

Parameters held under the candidate_selection lookup set should be reviewed for each project type.

These parameters can be optimised for a specific network by using them as variables in a Goal Seek model.

Lookup Parameters

Parameters contained in this lookup set are detailed below. Note that parameter keys are case-sensitive.

setting_key setting_value comment
min_periods_to_next_treat 6.0 Minimum periods to next treatment (i.e. do not consider treatment if periods to a committed future treatment is less than this)
min_sdi_to_treat 2.0 Minimum SDI to trigger candidate - use to throttle (EITHER condition applied with minimum PDI)
min_pdi_to_treat 2.0 Minimum PDI to trigger candidate - use to throttle (EITHER condition applied with minimum SPDI)
min_sla_to_treat_ac 50.0 Minimum Surface Life Achieved to consider for AC - gatekeeper that can be used to throttle treatments
min_sla_to_treat_cs 50.0 Minimum Surface Life Achieved to consider for Chipseals - gatekeeper that can be used to throttle treatments
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.