This article integrates with the urban overpass case, elaborates on the demand for urban overpass construction and makes use of category selection of overpass to verify the scientific and reasonable properties of plan design. The old Bradshaw Road overpass of I-95 was more than 50 years old and needed to be lengthened and raised slightly to provide sufficient room for the northbound. ![]() Therefore, the type selection and design principles of urban road overpass are different from those of highway overpass: First, the form of overpass has to be compatible with the property and traffic functions of crossed road the selected category assures safe and smooth traffic and continuous vehicle flow The form of overpass must adapt to the local environmental conditions an integrated consideration is made under the condition of meeting the traffic requirements in order to make a reasonable use of typography, practice economy to the project operation expense, coordinate with the environment and realize beautiful profile and stylish structure Special attention is paid to the integration between nearby and remote profiles before an integrated consideration is made The main line and ramp are collocated in sequence and an integrated arrangement is made The category is selected according to the actual conditions and favorable conditions are provided for the project construction. The Falcon Street Overpass was built by Reed Civil Contractors at a cost of AUD 12.4 million.The urban road overpass has its own features: (1) Calculated vehicle speed is rather low (2) The traffic organization is complex a huge amount of non-motorized vehicles and pedestrians are present (3) The land use is urgent, the buildings are densely distributed around and there is a network of underground pipelines (4) The road amplitude is rather wide and section is diversified. One lane of the freeway was blocked off during the critical delivery period. Each truck could take no longer than 45 minutes from the first batch until the final discharge, and they had to arrive within five minute intervals of each other. ![]() to pass beyond (specified limits, bounds, etc. The Roads and Traffic Authority (RTA) required Hanson Australia to deliver each load for the columns strictly between 7.00 am and 9.30 am each morning. to pass over or traverse (a region, space, etc.): We had overpassed the frontier during the night. ![]() From day one there was absolutely no room for error with the column pours, mix quality, and most of all, the delivery schedule. HeidelbergCement’s subsidiary Hanson Australia supplied over 3000 cubic metres of high-strength concrete. The project received strong community support as the footway eliminated illegal and dangerous road crossings on Falcon Street. The overpass provides a much-needed passage for thousands of pedestrians and cyclists who travel between the congested business centres of Neutral Bay, Crows Nest, and North Sydney. There have also been emergency repairs on the Linkfield Road overpass bridge at Bald. ![]() Sydney’s Falcon Street pedestrian overpass spans 220 metres across the Warringah Freeway in North Sydney, Australia. It’s since been cleared but cars are still lined up back to Upper Mount Gravatt with delays up to 10 minutes.
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