by Lingkaran Trans Kota Holdings Bhd (Litrak) to improve the level of service on LDP. The project which commenced in August 2007 with a total budget of RM133 million involves widening of certain stretches and building a flyover and an underpass at TTDI Interchange. The congestion at the interchange is mainly due to multiple weaving of traffic from TTDI to Bandar Utama, TTDI to Damansara Utama and Damansara Utama to TTDI. Once completed, the upgraded interchange will ease traffic flow from TTDI to Bandar Utama/Kepong and there will also be smoother flow on the LDP mainline to Bandar Utama and Kepong. The upgraded interchange will also allow more green time for localized traffic movement. The project work involved the following: Upgrading of existing TTDI Interchange into a fully grade-separated Interchange through the construction of a new 2-lane bridge flyover for northbound traffic towards Kepong Localised widening of northbound and southbound slip roads An underpass from TTDI to Bandar Utama and Kepong. The project was scheduled for full completion in May 2011 with the flyover expected to be opened earlier upon its completion. Features A notable feature of the expressway is the LDP Cable-Stayed Bridge on the Freescale Interchange, the first cable-stayed land bridge in Malaysia. The elevated Sungai Buloh–Kajang MRT line from Mutiara Damansara to Taman Tun Dr Ismail Notable incidents 1 August 2013 – Chua Boon Huat, Malaysian's national hockey player died in a car accident on Damansara–Puchong Expressway near Kelana Jaya LRT station at Kelana Jaya. Tolls The Damansara–Puchong Expressway using opened toll systems. Electronic Toll Collections (ETC) As part of an initiative to facilitate faster transactions at the Penchala, PJS, Puchong West and Puchong South Toll Plazas, all toll transactions at four toll plazas on the Damansara–Puchong Expressway have been conducted electronically via Touch 'n Go cards or SmartTAGs since 9 November 2016. Toll rates (As of 15 October 2015) List of interchanges and laybys The entire expressway is located within the Petaling District in Selangor. Main Link Puchong Barat Link Gallery See also Malaysian expressway system Teras Teknologi (TERAS) References External links Gamuda Group LITRAK Arup Juruunding Sdn. Bhd 1999 establishments in Malaysia Expressways and highways in the Klang Valley