lice cycle analysis of Pavement. pavement engineering_R.pptx

life cycle analysis of pavement

1. LIFE-CYCLE ANALYSIS OF PAVEMENT (USING HDM-4 SOFTWARE)

2. LIFE-CYCLE COST ANALYSIS An analysis technique that builds on the well-founded principles of economic analysis to evaluate the over-all-long-term economic efficiency between competing alternative investment options .

3. HIGHWAY DEVELOPMENT AND MANAGEMENT SYSTEM (HDM-4) HDM- 4 developed by the World bank is a powerful pavement management software tool capable of performing technical and economic appraisals of road projects, investigating road investment programs, and an analysing road network preservation strategies It simulates deterioration and maintenance of paved and unpaved roads, in physical condition and quantities, for strategies defined by the user.

4. In this analysis, after giving traffic inputs, three alternatives have been defined to determine the life cycle cost analysis of pavement - 1 st alternative was routine maintenance, 2 nd alternative was overlay of 25mm SDBC and 3 rd alternative was the reconstruction of pavement. Routine maintenance was scheduled annually and others were responsive (i.e. conditional). The Project analysis period was of 15 years.

5. STEPS FOR DATA INPUT IN HDM-4

6. OUTPUT

7. CONCLUSION The result predicted motorized AADT value of 20000 by 2029. From the average roughness graph it was observed that routine maintenance has to be done every year from 2023 and pavement will have to be reconstruction in 2025 and the cost of construction would be Rs.42, 00,000 per km. SDBC overlay would be in 2024, 2025 and 2029 with total estimated cost of Rs.84, 00,000 per km (for all the three years).