Moore Park tunnel to connect Randwick, Kingsford to city by light rail Trams will run between the eastern suburbs and the city by crossing Moore Park in a tunnel, the state government has determined as part of its $1.6 billion expansion of Sydney's tram network. Transport for NSW has ruled out its other idea for the Moore Park crossing - a cheaper raised viaduct - and will put the tunnel option on display along with other project details in a draft environmental impact statement released to the public next week. The statement will include information about how to manage the massive traffic changes slated for the city and Randwick and Kingsford in the eastern suburbs. "As with any project, there are winners and losers," the project director for the light rail line, Jeff Goodling, said. As traffic changes, we will find that some intersections don't work as well as they do now; we will find most intersections work better. But Mr Goodling said the biggest challenge would be during construction. The tram line will run from Circular Quay to Central, through Surry Hills on Devonshire Street, under Moore Park, to Randwick and Kingsford on Alison Road and Anzac Parade. Mr Goodling, who previously ran a seven-year program of installing tram lines in Portland, Oregon, said the aim would be to ensure all businesses along the route retained access during construction. "Our intention is to develop a construction plan that incentives the contractor to not begin work in any area until they are ready to aggressively pursue it," he said. "Our intention is to avoid the situation you may have seen on the Gold Coast," he said, referring to a light rail project that has angered locals with its intensive disruption. Transport for NSW had previously said there were two options for trams to move through Moore Park. One was a "cut and cover" tunnel, in which the tunnel would be dug up but then sealed again, and the other a viaduct. After the tunnel proved more popular in consultations, the department adopted the tunnel. At the conference, Mr Goodling also discussed how the tram network could be expanded once it was built by about 2019. It would not be possible to send any more trams down George Street, he said, because there would not be enough room on the street. But in the future, trams from the eastern suburbs could swing down Broadway to the University of Sydney, opening up room for more trams in the CBD. The trams could also run services on Sydney's existing tram line to Pyrmont and Lilyfield, though that is not planned at the moment. "Our modelling has also revealed there is a lot more demand than we expected to go from Pyrmont down to the university," Mr Goodling said, referring to the University of NSW.