Mt Isa System Information Pack - Issue 2.1 - May ... - Queensland Rail

This section of track caters for block trains and general freight traffic running at 80 kph.The maximum grade (not compensated for horizontal alignment) that an Up train - (loaded- travelling south) will encounter is 1 in 125 whilst for a Down train (empty - travelling north)is 1 in 119 (at the Junction).Existing minimum nominal horizontal curve radii are as follows :-running lineballoon loopsiding and depots1200 m300 m140 mFencing along this corridor complements adjacent land usage and is maintained at the followingstandard, poor (100 %).Minimum nominal horizontal radius for new or upgrade works is as follows :-running line 2170 m 160 kph running1662 m 140 kph running1221 m 120 kph running848 m 100 kph running542 m 80 kph runningballoon loop 300 m minimum radiussiding and depot140 mDESCRIPTION OF THE TRACKThe track on this system is a mix of 53 kg/m, 47 kg/m and 41 kg/m with the associatedsleeper types namely steel and timber on crushed rock ballast. The rails are continuouslywelded.Speeds through the curved leg of turnouts are governed by the angle of that turnout ie.1 in 12 25 km/h1 in 16 50 km/h1 in 25 80 km/hIn general, curves (with the exception of turnout curves) are transitioned.Track Data and Grade Diagrams for the following major routes are included in Appendix E.Stuart to Mt IsaFlynn to Phosphate HillWorking Plan and Section drawings are available on the CD version of this InformationPack. These drawings are issued and accepted for use by potential railway operators subjectto the following:“QR does not warrant the fitness for purpose or accuracy of this information”MT ISA SYSTEM INFORMATION PACKISSUE 2.1 DATE - MAY 200713