Major Contribution & Significant Achievements in Highway Sector

Pavement Engineering and materials

  • Pavement Performance study (Phase-I and Phase- II), which helped in evolving pavement design & maintenance stragies for Indian Roads.
  • Cold mix technologies
  • Development of new and improved/modified bituminous binders
  • Technologies related to construction of cement concrete pavement – ultra thin white topping, white topping, roller compacted concrete, high performance concrete, high volume flyash concrete, interlocking concrete block pavement etc.
  • Pavement maintenance management system
  • Pavement condition evaluation of various road networks
  • Evaluation of airfield pavements
  • Use of wallastonite microfibers, magnesium oxychloride cement and marble slurry dust in concrete pavements
  • Techniques of rapid setting materials such as epoxy resins and magnesium phosphate cement for quick repair of concrete pavements
  • Design of flexible pavements for heavy duty vehicle, cranes, dumpers, tankers etc. in industrial and mining areas, nuclear plant areas, oil refineries, coal fields and ports etc
  • Ready to use cold mix patching materials for repair of potholes.
  • Evaluation of various modifiers/stabilization agents and development of high performing bituminous mixes
  • Quality audit and quality surveillance of road works

Traffic and Transportation Planning

  • Road user cost studies(1981,2000,2010)
  • Driver’s evaluation through simulators system
  • Air and Noise pollution studies
  • Comprehensive traffic and transportation studies for a number of medium and large sized towns/cities and urban areas
  • Various studies related to development of Delhi Metro Rail (phase I & II)
  • Environmental impact studies
  • Road Safety studies
  • Fuel consumption studies and fuel loss estimation due to idling of vehicles at intersection
  • Rural roads network planning and Master plans for core and road network
  • Intelligence Transport System and Parking management system
  • Techno-Economic evaluation of road projects
  • Urban road traffic and air pollution study(Auto Fuel Policy)
  • Development of GIS based National Highways Information System
  • Green House Gas emission studies
  • Traffic simulation modeling studies

Geotechnical Engineering

  • Flyash utilization for construction of roads and embankment(under Flyash Mission)
  • Implementation of Pradhan Mantri Gram Sadak Yojna in the formative years including preparation of Rural Roads Manual and CRRI acting as the Principal Technical Coordinating Agency
  • Stabilization techniques for improvement in Engg. Properties of soil.
  • Use of waste materials such as copper, iron and blast furnace slags, flyash, kimberlite tailings, construction and demolition waste; municipal waste etc., in construction of roads
  • Slope stability and design of high embankments
  • Ground improvement techniques in Black Cotton soil, Marshy and Swampy areas
  • Landslides and Rockfall investigations and mitigation measures
  • Soil erosion and soil reinforcement techniques
  • Use of geotextiles/geogrid/geosynthetics/geofabrics in road construction
  • Use of inferior/marginal/poor/soft aggregate in road construction
  • Techniques for sub-surface drainage, slope stabilization and soil nailing
  • Performance audit of road works for Comptroller and Auditor general of India• Use of jute
  • fabrics and Geotextiles in road construction
  • Reclamation and recycling techniques for conservation of naturally occurring materials

Bridge Engineering

  • Bridge instrumentation system
  • Distress diagnostic and strengthening/rehabilitation techniques for bridges
  • Load tests for bridges
  • Bridge maintenance management system
  • Long term performance monitoring of highway and railway bridges• Assessment of load
  • carrying capacity and restoring load carrying capacity of bridges
  • Development of several softwares and a host of testing equipments/devices for their use in roads and bridge engineering