Figure 5
A donut chart representing the distribution of different types of maintenance mentioned concurrently in a subset of articles. The chart has 9 segments. The largest segment, representing 48.3 percent, is labeled Corrective and Preventive Maintenance and is colored blue. The second largest segment, representing 27.6 percent, is labeled Not addressed and is colored red. The third largest segment, representing 6.9 percent, is labeled Corrective, Preventive, and Condition-Based Maintenance and is colored yellow. Four segments, each representing 3.4 percent, are labeled Corrective, Preventive, and Prescriptive Maintenance, Corrective, Preventive, Condition-Based, and Prescriptive Maintenance, Corrective, Preventive, and Proactive Maintenance, and Predictive Maintenance, and are colored green, orange, light blue, and dark green respectively. The smallest segment, representing 3.4 percent, is labeled Corrective Maintenance and is colored pink.Types of maintenance mentioned concurrently in the subset of articles. Source: Authors’ own elaboration (2025)