Wallerawang to Orange & Orange to Cookamidgera

Wallerawang to Orange & Orange to Cookamidgera

The Challenge:

The client request we establish  survey control and undertake track design over four sections of the NSW Main West railway. This line is one of the oldest in NSW with many tight curves and short straight sections thereby causing track wear. In accordance with their multi-year program, the client intended to re-sleeper all curves with concrete sleepers and replace defective track. The design brief required 80 km/h track speeds and minimal track pulls from the existing alignment.

The Solution:

The tender brief requires the track design be applied to allow trains to operate at an ideal track speed of 80 km/hr whilst minimising track lateral shifts or “pull” to avoid earthworks.

The work to be completed includes installation of permanent survey control marks to Map Grid of Australia coordinates, survey of existing rail track, track re-design and placement of track construction marks for tamping crews to "pull" the track to the design geometry.

Survey work commenced in November 2016 with final project document delivery in June 2017.

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Mitchel Hanlon Consulting Pty Ltd ABN 51104693736