H.E. Mattar Al Tayer, Director General and Chairman of the Board of Executive Directors of the Roads and Transport Authority (RTA) holds a Bachelor's degree in Civil Engineering from the University of Wisconsin, USA, 1983.

Prior to taking up RTA's leadership role, H.E. Al Tayer worked in Dubai Municipality since 1983. He worked in several professional and supervisory roles ranging from the Director of the Roads Department up to the Deputy Director General of Dubai Municipality.

He took leadership of RTA in November 2005 where he oversaw the establishment phase including the recruitment of competent and experienced professionals. Under his leadership, RTA has made remarkable achievements in a variety of fields including radical development of the mass transit system through mega projects, like Dubai Metro (Red and Green Lines) and Dubai Tram. It has made a major shift in the bus and marine transit services as well as the developments in the road network including multiple crossings on Dubai Creek such as the Business Bay Crossing, Al Garhoud Bridge and the Floating Bridge. RTA has also developed key roads and interchanges on the Sheikh Zayed Road, Al Khail Road, Sheikh Mohammed bin Zayed Road, and Emirates Road. Additionally, RTA has also delivered an array of superb projects such as the Dubai Water Canal, Jumeirah Corniche, Etihad Museum, and the Enterprise Command and Control Center (EC3). Overall, H.E. Al Tayer has overseen projects worth about AED 100 billion undertaken by RTA.

Throughout his professional career, H.E. Al Tayer has received multiple accolades in recognition of his successful leadership of the RTA by receiving the Mohammed bin Rashid Al Maktoum Sash in September 2011.