The work involved adding one more lane to the existing three-lane road.
The slip road at the Puchong Perdana Interchange has been widened, providing three right-turn lanes into Persiaran Puchong Perdana.
Litrak CEO Sazally Saidi said all these were included in the first phase of the upgrading work in the area.
The second phase, which is still ongoing and expected to be completed in December 2011, is a 700m south-bound two-lane ramp from the Puchong Intan Interchange to Puchong Perdana Interchange.
The highway concessionaire is also planning to spend RM74mil to improve the south-bound traffic from the Petaling Jaya Selatan toll plaza (or Sunway toll plaza) to Bandar Puchong Jaya.
The north-bound ramp near IOI Mall will be used for south-bound traffic and a 490m bridge will be built to channel north-bound traffic.
“Work will start in January and be completed in February 2013,” Sazally said.
In Petaling Jaya, the RM100mil upgrading work on the stretch of LDP between Persiaran Surian and Penchala toll plaza is under way.
“The site has been cleared and soil investigation completed. Work will start in January,” Sazally said.
Another RM21.4mil to ease congestion for south-bound traffic from the Damansara Utama Interchange to the SS2 Interchange is being planned.
Sazally said the toll plazas at LDP would be upgraded in tandem with the government’s intention of implementing the Multi Lane Free Flow system, where toll fares are deducted electronically by readers installed at the gantry above the highway.
Sazally said many developments had sprouted along the LDP and there was a need to constantly upgrade the highway connecting Kepong and Putrajaya.
“We hope that the authorities will also play their part. Big projects should not rely on the existing infrastructure,” he said.