Abstract
Abstract During past periods of rapid economic growth, infrastructure development in Japan was intense. This infrastructure now requires both renovation and replacement. Appropriate management of infrastructure is critical as the population falls, budgets become reduced, and staff numbers dwindle. The Japan Society of Civil Engineers evaluates infrastructure soundness and publishes the results to promote understanding of the current situation and to emphasize the importance of maintenance. We devised indices for evaluating deterioration of drinking-water distribution pipelines and maintenance management systems for the pipelines. The indices are the percentage of old pipelines, the percentage of ineffective water, change in the number of technical staff per unit length of pipe, and the repair rate of water leaks. Using these indices, the evaluation result for Japan overall was a C (Caution) in terms of deterioration and Downward in terms of maintenance management.
Highlights
During past periods of rapid economic growth, infrastructure development in Japan was intense
Indices of deterioration and maintenance management systems were selected from candidate lists
We considered various resources including people, goods and services, and money
Summary
During past periods of rapid economic growth, infrastructure development in Japan was intense. Similar efforts have been made in the United States (National Council on Public Works Improvement (US) ; American Society of Civil Engineers ), the United Kingdom (Institute of Civil Engineers ), Australia (Engineers Australia ), and South Africa (South African Institution of Civil Engineering ); these evaluations, published as. Japanese report cards have focused on infrastructure soundness, based on statistics and published reports Using these data, the Japan Society of Civil Engineers ( ) devised indices evaluating deterioration and maintenance management systems. Multiple indices were formulated that can be calculated using water-supply statistics; these were used to evaluate water utilities
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