The Public Works Department (PWD) will use new technologies to re-strengthen its road network before Commonwealth Games 2010.
According to senior PWD officials, the conventional bituminous roads wear off faster in extreme climactic conditions and exceptionally heavy volume of traffic in the city. Though the normal life of a road is considered 4-5 years, most road surfaces start deteriorating within couple of years due to high volume of traffic in Delhi, an official said.
“We have decided to use three different technologies —micro-surfacing, recycling and plastic-bituminous mix —to re-strengthen the capital’s roads,” said a senior PWD official.
In the run up to the Commonwealth Games 2010, the PWD is strengthening its 190-kilometre road network in the city. The PWD has over 400 kilometres of road network.
“We will use micro-surfacing on approximately little less than half of the 190 kms while the remaining will be strengthened using the recycling technology. The plastic-bituminous mix will be used in a small portion,” PWD chief engineer Vinay Kumar said. The project, said officials, will be completed by end of the year 2009.
According to senior PWD engineers, the new technologies are being used after their successful test and trials. The plastic-bitumen roads are being widely constructed in cities like Bangalore, Madurai, Thiruvananthapuram and some more districts of Karnataka and Tamil Nadu. In Delhi too, a stretch of Under Hill Road in Civil Lines area was constructed using this technology four years ago and is still in perfect condition.
Recycling road technology is also being used in Hyderabad. A stretch of Mehrauli-Badarpur road was re-strengthened last year using this technology and it also gave very good results, a senior PWD official said.
“This technology will be used on stretches where the volume of traffic is comparatively low than other roads in the city. It’s a time-consuming technology and requires diversion of traffic. But this is more environment friendly,” an official said.