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| Latent variables | Observed variables | Specific questions and corresponding options (the scores of options are 5 to 1 from left to right) |
|
| Joint diseases (Joi) | Joint filler damage (Joi1) | Do you agree that timely maintenance can greatly improve the service life of the pavement when the pavement is damaged by the joint filler?
□Strongly agree □Agree □Not necessarily □Disagree □Strongly disagree |
| Corner peeling (Joi2) | Do you agree that timely maintenance can greatly improve the service life of the pavement when the pavement is damaged by the corner peeling?
□Strongly agree □Agree □Not necessarily □Disagree □Strongly disagree |
| Mud (Joi3) | Do you agree that timely maintenance can greatly improve the service life of the pavement when the pavement is damaged by mud?
□Strongly agree □Agree □Not necessarily □Disagree □Strongly disagree |
|
| Surface diseases (Sur) | Surface crack (Sur1) | Do you agree that timely maintenance can greatly improve the service life of the pavement when the pavement is damaged by the surface crack?
□Strongly agree □Agree □Not necessarily □Disagree □Strongly disagree |
| Surface peeling (Sur2) | Do you agree that timely maintenance can greatly improve the service life of the pavement when the pavement is damaged by the surface peeling?
□Strongly agree □Agree □Not necessarily □Disagree □Strongly disagree |
|
| Vertical diseases (Ver) | Interplate slip (Ver1) | Do you agree that timely maintenance can greatly improve the service life of the pavement when the pavement is damaged by the interplate slip?
□Strongly agree □Agree □Not necessarily □Disagree □Strongly disagree |
| Void at the bottom of the panel (Ver2) | Do you agree that timely maintenance can greatly improve the service life of the pavement when the pavement is damaged by the void at the bottom of the panel?
□Strongly agree □Agree □Not necessarily □Disagree □Strongly disagree |
|
| Repair diseases (Rep) | Secondary disease of the patch (Rep1) | Do you agree that timely maintenance can greatly improve the service life of the pavement when the pavement is damaged by the secondary disease of the patch?
□Strongly agree □Agree □Not necessarily □Disagree □Strongly disagree |
|
| Fracture diseases (Fra) | Plate fragmentation (Fra1) | Do you agree that timely maintenance can greatly improve the service life of the pavement when the pavement is damaged by the plate fragmentation?
□Strongly agree □Agree □Not necessarily □Disagree □Strongly disagree |
| Plate fracture (Fra2) | Do you agree that timely maintenance can greatly improve the service life of the pavement when the pavement is damaged by the plate fracture?
□Strongly agree □Agree □Not necessarily □Disagree □Strongly disagree |
| Plate corner fracture (Fra3) | Do you agree that timely maintenance can greatly improve the service life of the pavement when the pavement is damaged by the plate corner fracture?
□Strongly agree □Agree □Not necessarily □Disagree □Strongly disagree |
|
| Pavement damage (Pav) | —— | —— |
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