Chennai: The IT corridor, dotted with software companies, educational institutions and mushrooming swanky multi storeyed residential apartments, triggering more development by the day, has brought a new problem.Increasing traffic congestion is becoming a cause for concern to the government.In an effort to reduce the traffic congestion, the state government has proposed several road infrastructure projects worth over Rs 1,000 crore, including a 45 km elevated expressway on the busy IT corridor to the popular tourist destination of Mahabalipuram. “The project will be taken up in two phases and the work will be completed from Taramani up to Siruseri in the first phase and from Siruseri to Mamallapuram in the second phase,” chief minister J. Jayalalithaa said. Making a suo moto statement in the Assembly on Monday, she said Rs 5 crore would be allocated to prepare a detailed plan to implement the project at the earliest.Ms Jayalalithaa said the 22-km road up to Thiruninravur from Padi was handed over to National Highways Autho­rity of India in 2005 based on the request of NHAI. But the authority did not upgrade the road since there was no provision for toll collection and as a result the road lacked maintenance, she said.