미국
Performance Metrics - Transportation - Pavement Cave-ins
As underground drainage systems age, occasionally failures in the pipes and joints can cause pavement cave-ins. The Department of Transportation (CDOT) responds to pavement cave-ins reported through 311’s Customer Service Requests (CSR) system on a case-by-case basis. This metric tracks the average number of days CDOT takes to complete pavement cave-in repairs per week. The target response time for pavement cave-ins is within 3 days.