The initial features and the features after the narrowing-down process
| Initial features | No. of types |
|---|---|
| Damage occurrence locations (e.g. Cantilever) | 4 |
| Repair (e.g. Temporary_Repair) | 2 |
| Damage summary (e.g. Corrosion) | 4 |
| Permanent_Repair | 1 |
| Previous_Assessment | 1 |
| water leakage | 1 |
| Main_Girder_Max_Height | 1 |
| Main_Girder_Min_Height | 1 |
| Main_Girder_Count | 1 |
| Main_Girder_Max_Spacing | 1 |
| Main_Girder_Min_Spacing | 1 |
| Main_Girder_Span_Count | 1 |
| Main_Girder_Position_Relationship | 1 |
| Main_Girder_Span_Length | 1 |
| Starting_Pier_Width | 1 |
| Ending_Pier_Width | 1 |
| Deck_Thickness | 1 |
| Main_Girder_Max_Spacing | 1 |
| Deck_Strength | 1 |
| Main_Rebar_Diameter | 1 |
| Main_Rebar_Spacing | 1 |
| Distribution_Rebar_Diameter | 1 |
| Distribution_Rebar_Spacing | 1 |
| Distribution_Rebar_Ratio_Percent | 1 |
| RC Deck Reinforcement (e.g. Short_Plate) | 3 |
| Waterproofing_Presence | 1 |
| Distance of current starting expansion joint | 1 |
| Distance of current ending expansion joint | 1 |
| Type of bridge superstructure (e.g. Continuous RC T-girder) | 18 |
| Type of starting bridge bearing (e.g. Move bering) | 5 |
| Type of ending bridge bearing (e.g. Move bering) | 5 |
| Design load (e.g. TL_20) | 3 |
| Rib cross-section shape (e.g. U) | 6 |
| Design code (e.g. Road_Instruction_Steel_H8) | 20 |
| Expansion joint starting material (e.g. Rubber) | 5 |
| Expansion joint ending material (e.g. Rubber) | 5 |
| Traffic volume | 1 |
| Heavy vehicle ratio | 1 |
| Traffic volume heavy vehicle | 1 |
| Deck type (e.g. Precast_PC) | 7 |
| Longitudinal gradient | 1 |
| Coating (e.g. NU-WF-1) | 36 |
| Rainfall (mm/year) | 1 |
| Lowest monthly average minimum temperature | 1 |
| Expressway route no (e.g. No. 1 Haneda Line) | 28 |
| Area under the elevated structure (e.g. River) | 9 |
| Inspection interval from the installation date | 1 |
| Inspection interval from the painting repair date | 1 |
| Inspection interval from the pavement base layer installation date | 1 |
| Inspection interval from the stating expansion joint repaired date | 1 |
| Inspection interval from the ending expansion joint repaired date | 1 |
| Initial features | No. of types |
|---|---|
| Damage occurrence locations (e.g. Cantilever) | 4 |
| Repair (e.g. Temporary_Repair) | 2 |
| Damage summary (e.g. Corrosion) | 4 |
| Permanent_Repair | 1 |
| Previous_Assessment | 1 |
| water leakage | 1 |
| Main_Girder_Max_Height | 1 |
| Main_Girder_Min_Height | 1 |
| Main_Girder_Count | 1 |
| Main_Girder_Max_Spacing | 1 |
| Main_Girder_Min_Spacing | 1 |
| Main_Girder_Span_Count | 1 |
| Main_Girder_Position_Relationship | 1 |
| Main_Girder_Span_Length | 1 |
| Starting_Pier_Width | 1 |
| Ending_Pier_Width | 1 |
| Deck_Thickness | 1 |
| Main_Girder_Max_Spacing | 1 |
| Deck_Strength | 1 |
| Main_Rebar_Diameter | 1 |
| Main_Rebar_Spacing | 1 |
| Distribution_Rebar_Diameter | 1 |
| Distribution_Rebar_Spacing | 1 |
| Distribution_Rebar_Ratio_Percent | 1 |
| 3 | |
| Waterproofing_Presence | 1 |
| Distance of current starting expansion joint | 1 |
| Distance of current ending expansion joint | 1 |
| Type of bridge superstructure (e.g. Continuous | 18 |
| Type of starting bridge bearing (e.g. Move bering) | 5 |
| Type of ending bridge bearing (e.g. Move bering) | 5 |
| Design load (e.g. TL_20) | 3 |
| Rib cross-section shape (e.g. U) | 6 |
| Design code (e.g. Road_Instruction_Steel_H8) | 20 |
| Expansion joint starting material (e.g. Rubber) | 5 |
| Expansion joint ending material (e.g. Rubber) | 5 |
| Traffic volume | 1 |
| Heavy vehicle ratio | 1 |
| Traffic volume heavy vehicle | 1 |
| Deck type (e.g. Precast_PC) | 7 |
| Longitudinal gradient | 1 |
| Coating (e.g. NU-WF-1) | 36 |
| Rainfall (mm/year) | 1 |
| Lowest monthly average minimum temperature | 1 |
| Expressway route no (e.g. No. 1 Haneda Line) | 28 |
| Area under the elevated structure (e.g. River) | 9 |
| Inspection interval from the installation date | 1 |
| Inspection interval from the painting repair date | 1 |
| Inspection interval from the pavement base layer installation date | 1 |
| Inspection interval from the stating expansion joint repaired date | 1 |
| Inspection interval from the ending expansion joint repaired date | 1 |
| The features after narrowing down (predicting damage progression) | No. of types |
|---|---|
| Damage occurrence locations (e.g. Cantilever) | 4 |
| Main_Girder_Max_Height | 1 |
| Main_Girder_Min_Height | 1 |
| Main_Girder_Max_Spacing | 1 |
| Main_Girder_Min_Spacing | 1 |
| Main_Girder_Span_Length | 1 |
| Deck_Thickness | 1 |
| Main_Rebar_Spacing | 1 |
| Distance of current starting expansion joint | 1 |
| Distance of current ending expansion joint | 1 |
| Previous_Assessment | 1 |
| Water leakage | 1 |
| Inspection interval from the installation date | 1 |
| Inspection interval from the Painting Repair Date | 1 |
| Inspection interval from the pavement base layer installation date | 1 |
| Inspection interval from the stating expansion joint repaired date | 1 |
| Inspection interval from the ending expansion joint repaired date | 1 |
| The features after narrowing down (predicting damage progression) | No. of types |
|---|---|
| Damage occurrence locations (e.g. Cantilever) | 4 |
| Main_Girder_Max_Height | 1 |
| Main_Girder_Min_Height | 1 |
| Main_Girder_Max_Spacing | 1 |
| Main_Girder_Min_Spacing | 1 |
| Main_Girder_Span_Length | 1 |
| Deck_Thickness | 1 |
| Main_Rebar_Spacing | 1 |
| Distance of current starting expansion joint | 1 |
| Distance of current ending expansion joint | 1 |
| Previous_Assessment | 1 |
| Water leakage | 1 |
| Inspection interval from the installation date | 1 |
| Inspection interval from the Painting Repair Date | 1 |
| Inspection interval from the pavement base layer installation date | 1 |
| Inspection interval from the stating expansion joint repaired date | 1 |
| Inspection interval from the ending expansion joint repaired date | 1 |
| The features after narrowing down (predicting the occurrence of new damage) | No. of types |
|---|---|
| Damage occurrence locations (e.g. Cantilever) | 4 |
| Main_Girder_Max_Height | 1 |
| Main_Girder_Min_Height | 1 |
| Main_Girder_Max_Spacing | 1 |
| Main_Girder_Min_Spacing | 1 |
| Main_Girder_Span_Length | 1 |
| Starting_Pier_Width | 1 |
| Ending_Pier_Width | 1 |
| Deck_Thickness | 1 |
| Main_Rebar_Spacing | 1 |
| Distribution_Rebar_Ratio_Percent | 1 |
| Waterproofing_Presence | 1 |
| Water leakage | 1 |
| Traffic volume | 1 |
| Traffic volume heavy vehicle | 1 |
| Inspection interval from the installation date | 1 |
| Inspection interval from the painting repair date | 1 |
| Inspection interval from the pavement base layer installation date | 1 |
| Inspection interval from the stating expansion joint repaired date | 1 |
| Inspection interval from the ending expansion joint repaired date | 1 |
| The features after narrowing down (predicting the occurrence of new damage) | No. of types |
|---|---|
| Damage occurrence locations (e.g. Cantilever) | 4 |
| Main_Girder_Max_Height | 1 |
| Main_Girder_Min_Height | 1 |
| Main_Girder_Max_Spacing | 1 |
| Main_Girder_Min_Spacing | 1 |
| Main_Girder_Span_Length | 1 |
| Starting_Pier_Width | 1 |
| Ending_Pier_Width | 1 |
| Deck_Thickness | 1 |
| Main_Rebar_Spacing | 1 |
| Distribution_Rebar_Ratio_Percent | 1 |
| Waterproofing_Presence | 1 |
| Water leakage | 1 |
| Traffic volume | 1 |
| Traffic volume heavy vehicle | 1 |
| Inspection interval from the installation date | 1 |
| Inspection interval from the painting repair date | 1 |
| Inspection interval from the pavement base layer installation date | 1 |
| Inspection interval from the stating expansion joint repaired date | 1 |
| Inspection interval from the ending expansion joint repaired date | 1 |
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