Reliability and Maintenance Modeling with Optimization

9Optimal Social Infrastructure Maintenance Models

Kodo Ito

Tottori University, Japan

Akihiro Yamane

Tottori University, Japan

Yoshiyuki Higuchi

Fukushima University, Japan

CONTENTS

• 9.1 Introduction

• 9.2 Basic Models

  • 9.2.1 Model 1

  • 9.2.2 Model 2

• 9.3 Model 3

• 9.4 Model 4

• 9.5 Extended Models

  • 9.5.1 Model 5

  • 9.5.2 Model 6

  • 9.5.3 Model 7

  • 9.5.4 Model 8

• 9.6 Conclusion

9.1 INTRODUCTION

In 2023, 39% of road bridges and 27% of tunnels will be 50 years old in Japan, and large-scale maintenance of them has become a big national concern of the Japanese government, because such social infrastructures are fundamental and indispensable for our lives and economic activities [1]. Annual inspections and repairs of roads are performed by local governments ...