Abstract:
At the completion of this research, we hope to achieve several objectives; development of a
methodology to identify possible impacts and their quantification (identify the benefits of the placing
roads as direct and indirect impacts on social and physical infrastructure, geographical, community and
Household characteristics), determination of appropriate parameters to use in HDM-4 for economic
analysis (determine the most significance parameters and determine economically appropriate
parameters to Sri Lanka) and preparation of a guideline for impact evaluation.
The Road Development Authority (RDA) in Sri Lanka uses the evaluation method “HDM -4” but
parameters to Sri Lankan conditions are not determined correctly and no study to check its suitability to
Sri Lanka has been done. Impact on environment, economy and society, road safety and quality are not
properly taken into account when doing the analysis at present and it causes lots of problems in the
respective areas of study. Huge wastage of money takes place as a result of wrong decisions taken in
planning stage due to various reasons. A socio economic questionnaire survey is carried out and social
data are collected in 10 roads in four provinces and data collected. Roughness data, traffic counts and
other more required data are collected from the field to use in HDM- 4 analysis in these roads.
Different requirements and problems were discovered in different locations (socio parameters) and
among them common issues were identified. Those common issues must be taken into account when
rehabilitating a road. Further, the significant issues identified should be monitored during the data
collection stage as well as in post construction stage. It would help the authorities to overcome the
problems that they are facing now in constructing roads and monitoring them.
Social, economical data should be collected according to the requested guidelines and they should be
analyzed properly.
Citation:
Sahantha, J.G.C., Rathnayaka, R.M.H.P.K., Weerakkody, W.H.M.P., & Bandara, J.M.S.J. (2011). Improvements need in evaluation of road rehabilitation projects [Abstract]. In H.R. Pasindu (Ed.), Proceedings of the Transportation Research Forum 2011 (p. 49). Department of Civil Engineering, University of Moratuwa. https://uom.lk/sites/default/files/civil/files/TRF%202011_0.pdf