I. Highway Planning, Management, Performance Evaluation & Instrumentation

2. PAVEMENT EVALUATION

A. COMPLETED PROJECTS
3. Evaluation and Improvement Measures for Selected Roads of NDMC
Duration:

September 2005 to January 2006
(i) Central Road Research Institute, New Delhi (R, I)
(ii) New Delhi Municipal Council (NDMC) (S)

 

Present Status and Progress
The project was taken up to evaluate the existing condition of a total of 52 selected roads for recommending the maintenance and rehabilitation measures viz. resurfacing and overlays etc., needed to achieve higher service standards and quality roads. In order to arrive at the improvement measures, the following field studies were conducted:
Visual assessment of pavement surface condition in terms of surface distress / defects
Roughness measurements using duly calibrated Fifth Wheel Bump Integrator
Structural evaluation of 10 typical heavily trafficked roads, by Benkelman Beam method
Classified Traffic Volume studies on 10 typical heavily trafficked roads as above, for 48 hours round the clock
Test Pits observations to evaluate the properties of in-situ materials.
 
Findings/ Conclusions
The Benkelman Beam deflections data collected from ten roads investigated in detail indicated that all of these roads are structurally adequate and don’t require any major overlay / strengthening for the next ten years. Based on the total surface distressed area and prevailing level of roughness, two options viz. priority option and alternate option have been suggested for improvement of these roads, which consist of modern technologies such as Microsurfacing, Recycling and conventional technologies such as Hot Bituminous Mixes.
 
Recommendations
Based on the total surface distress area and prevailing level of roughness, two options have been suggested for improvement of these roads, which consist of modern technologies such as Microsurfacing, Recycling and conventional Hot bituminous mixes.
 
Reports / Publications
“Evaluation and Improvement Measures for Selected Roads of NDMC”, Technical Report, CRRI, October 2006.