Cost Effective Measures for Rehabilitation and Upgradation of Existing Single Lane Road to Multilane Standard Under Engineering Procurement and Construction (EPC) Module

In the present study an attempt has been made to develop cost effective measures for recent proposals invited by the government of India for the rehabilitation and upgrading of old existing single lane low density traffic roads to multilane standard with hard shoulders under engineering procurement and construction (EPC) module and the production of innovative designs by distinguishing between reconstruction strategies and rehabilitation strategies, rather than applying a single strategy where rehabilitation can work. Under the program objective, Indore-Betul National Highway No-59A was selected for the purpose of analysis due to its non-viability under Public Private Partnership (PPP). Three road sections of 69 km road length were selected for analysis purpose, widened earlier from 5 m to 7 m and 3 m to 7 m. Systematic analysis was done on each km for functional and structural characteristics using best engineering practices. It is highly recommended that, irrespective of whether it is item rate, EPC or PPP, a proper evaluation of the rehabilitation and reconstruction option should be undertaken, before the final execution of the road project. Under the suggested methodology, all design parameters were adopted as per recommended IRC 37-2012 Guidelines, on 100 msa with minimum design California Bearing Ratio (CBR) of 8% for a design period of 15 years. Out of a 69 km road, a length of 39,740 km was found to have completely failed and full reconstruction was suggested. A 27,760 km length road was found to be structurally sound, but functionally failed, and the same was considered as an integral part of rehabilitation design of which 1.5 km was existing concrete pavement. Cost estimating was done for all sections separately, and cost was compared. The result indicates that 41% of the length of the existing pavement structure was successfully utilized as part of a rehabilitation strategy and resulted in a 22.113% savings on the overall project cost. The salvage value of existing pavement structure considered for rehabilitation design comes out to be Rs. 54,024 lacks per km and results in an overall savings of Rs 1443.52 lacks for 69 km road length, as compared with no savings under reconstruction. The overall analysis indicates that a carefully conducted analysis and rehabilitation strategy, as suggested in this case study, provides maximum cost effectiveness and helps to save national assets.

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  • Supplemental Notes:
    • Abstract reprinted with permission from the publisher.
  • Authors:
    • Kumar, Basant
    • Tare, Vandana
  • Publication Date: 2017-12

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; Photos; References; Tables;
  • Pagination: pp 23-30
  • Serial:
    • Indian Highways
    • Volume: 45
    • Issue Number: 12
    • Publisher: Indian Roads Congress
    • ISSN: 0376-7256

Subject/Index Terms

Filing Info

  • Accession Number: 01685592
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 5 2018 10:35AM