Parameters Table

The table below shows the list of Model Parameters as specified in the Model Setup file’s ‘parameters’ sheet.

parameter_name data_type minimum maximum decimals comment
para_adt number 0 100000.0 1 Average Daily Traffic
para_hcv number 0 50000.0 1 Percentage heavy vehicles (ranges from 0 to 100)
para_pave_age number 0 200.0 1 Pavement age, in years
para_pave_remlife number -100 100.0 1 Pavement Remaining Life, in years
para_pave_life_ach number 0 200.0 1 Pavement Life Achieved (pavement age as a percentage of life (age plus remaining life))
para_hcv_risk number 1 25.0 1 Pavement Risk factor based on traffic loading and pavement life achieved. One of the factors used to determine distress probabilities.
para_surf_mat text Surface Material Code
para_surf_class text Surface Class ('cs' or 'ac', 'blocks','concrete','other')
para_surf_cs_flag number 0 1.0 0 When Surface Class is 'cs', then 1, else 0
para_surf_cs_or_ac_flag number 0 1.0 0 When Surface Class is 'cs' or 'ac', then 1, else 0
para_surf_road_type text Concatenate Road Type and Surface Class for use in various lookups. Model casts this to lowercase.
para_surf_thick number 0 500.0 1 Surface thickness in mm
para_surf_layers number 0 20.0 1 Number of Surface Layers
para_surf_func text Surface Function (First coat = '1', Second Coat = "2', Reseal = 'R', "1a" = "Preseal or Heavy Maintenance)
para_surf_exp_life number 0 200.0 1 Surface Expected Life, in years (initially from RAMM, then based on lookups after treatment)
para_surf_age number 0 999.0 1 Surface age, in years
para_surf_life_ach number 0 500.0 1 Surface Life Achieved (surface age as a percentage of Expected Life), Cap at 500% else MCDA over-emphasises this.
para_surf_remain_life number -100 100.0 1 Surface Remaining Life, in years
para_flush_pct number 0 100.0 1 Flushing Percentage
para_flush_info text Concatenated value for calibrated or reset values for S-Curve for this distress. Format is: aadi|init_value| t100
para_edgeb_pct number 0 100.0 1 Edge Break Percentage
para_edgeb_info text Concatenated value for calibrated or reset values for S-Curve for this distress. Format is: aadi|init_value| t100
para_scabb_pct number 0 100.0 1 Scabbing Percentage
para_scabb_info text Concatenated value for calibrated or reset values for S-Curve for this distress. Format is: aadi|init_value| t100
para_lt_cracks_pct number 0 100.0 1 L&T Cracks Percentage
para_lt_cracks_info text Concatenated value for calibrated or reset values for S-Curve for this distress. Format is: aadi|init_value| t100
para_mesh_cracks_pct number 0 100.0 1 Mesh Cracks percentate
para_mesh_cracks_info text Concatenated value for calibrated or reset values for S-Curve for this distress. Format is: aadi|init_value| t100
para_shove_pct number 0 100.0 1 Shoving percentage
para_shove_info text Concatenated value for calibrated or reset values for S-Curve for this distress. Format is: aadi|init_value| t100
para_poth_pct number 0 100.0 3 Pothole percentage (smaller values, so allow more decimals)
para_poth_info text Concatenated value for calibrated or reset values for S-Curve for this distress. Format is: aadi|init_value| t100
para_rut_increm number 0 2.5 2 Estimated Rut increment
para_rut number 0 50.0 1 Rut depth
para_naasra_increm number 0 15.0 1 Estimated Naasra Increment
para_naasra number 0 350.0 1 Naasra
para_sdi number 0 100.0 2 Surface distress index
para_pdi number 0 100.0 2 Pavement distress index
para_obj_distress number 0 100.0 2 Objective function component - weighted sum of PDI and SDI (only used in BCA-type models)
para_obj_rsl number 0 100.0 2 Objective function component - remaining surface life (only used in BCA-type models)
para_obj_rutting number 0 100.0 2 Objective function component - rutting (only used in BCA-type models)
para_obj_naasra number 0 100.0 2 Objective function component - roughness (NAASRA) (only used in BCA-type models)
para_obj_o number 0 100.0 2 Raw objective function (only used in BCA-type models)
para_obj number 0 1000.0 2 Objective function - raw objective function weighted by road type (only used in BCA-type models)
para_obj_auc number 0 9999999.0 1 Objective multiplied by treatment area, to scale for AUC calcs in BCA models (only used in BCA-type models)
para_maint_cost_perkm number 0 99000000.0 0 Routine Maintenance Cost per Km
para_csl_status text Canditate Selection Logic. Trigger logic outcome. If 'ok' then triggered = true. Otherwise triggered = false and value contains reason
para_csl_flag number 0 1.0 0 Candidate Selection Outcome. If  1 then triggered = true. If 0 then not triggered
para_is_treated_flag number 0 1.0 0 Flag to indicate if the model has applied a treatment
para_treat_count number 0 999.0 0 Tracks Number of Treatments applied. Can be used in MCDA to prioritise elements not yet treated or with fewer treatments.
para_pdi_rank number 0 101.0 2 Network Functions. Rank of raw Pavement Distress Index (0 = lowest on network, 100 = highest on network)
para_rut_rank number 0 101.0 2 Network Functions. Rank of Rut Depth (0 = lowest on network, 100 = highest on network)
para_sdi_rank number 0 101.0 2 Network Functions. Rank of raw Surface Distress Index (0 = lowest on network, 100 = highest on network)
para_sla_rank number 0 101.0 2 Network Functions. Rank of Surface Life Achieved (0 = lowest on network, 100 = highest on network)
Important

The Cassandra Framework Model will throw an error if any cells in your input set are empty or does not contain the correct data type. Specifically, numeric columns should not contain any empty values or text values that cannot be converted to numbers.