2023 年 69A 巻 p. 793-801
The bridge inspection guideline stipulates that a comprehensive evaluation shall be made at four levels from I to IV according to the soundness diagnosis. On the other hand, as stated by the Road Maintenance Annual Report, more than half of local governments have only completed less than 20% measures for III and IV. In the future, it will be necessary to scrutinize the judgment of soundness and take a perspective that refers to deterioration progress. In this study, we explored the relationship between deterioration phenomena and their factors using a Bayesian network and examined the validity of deterioration judgment and the possibility of providing information to help judge progress.