Appendix A Part 1 - Value Management Workshop Report 210110 · The project objectives are: Improve...
Transcript of Appendix A Part 1 - Value Management Workshop Report 210110 · The project objectives are: Improve...
PARSONS BRINCKERHOFF Value Management Workshop Report Page C-1
Appendix A
Overview of presentations
Page C-2 Value Management Workshop Report PARSONS BRINCKERHOFF
Introduction/background to project/route selection methodology – Chris Barnett
The project objectives are:
Improve safety.
Improve freight efficiency.
Cater for the mix of through, local and tourist traffic.
Be sensitive to the natural environment, heritage and local communities.
Project overview – Mount Victoria to Lithgow study area and milestones
Announced May 2008
• Preliminary environmental investigations and community engagements
• Community meetings
Constraints August 2008
• Desktop
• Community
Corridors November 2008
• Submissions
Corridors confirmed April 2009
• Field investigations • Community design workshops • Road design
PARSONS BRINCKERHOFF Value Management Workshop Report Page C-3
Page C-4 Value Management Workshop Report PARSONS BRINCKERHOFF
PARSONS BRINCKERHOFF Value Management Workshop Report Page C-5
Route Options October 2009
• Submissions • Additional investigations • Value management
We are here
Consideration of early 2010
• Submissions • Additional investigations • Value management outcome • Refinements to design
Preferred route Easter 2010
Page C-6 Value Management Workshop Report PARSONS BRINCKERHOFF
Project Overview - Safety
Project Overview – Grades and Curves
Fatality rate = 3.5 times State Government plan target
Crash rate is 53 per cent higher than comparable rural roads in NSW
Recent Great Western Highway works would suggest a 50 per cent reduction
GRADES Victoria Pass – 13 per cent River Lett Hill – 10 per cent
ADVISORY SPEED CURVES Lapstone to Katoomba 13 in 43 km Katoomba to Mt Victoria Six in 15 km Mt Victoria to Lithgow 20 in 18 km Lithgow to Bathurst One in 64 km
PARSONS BRINCKERHOFF Value Management Workshop Report Page C-7
Route options in Orange corridor
Explaining the route options
Page C-8 Value Management Workshop Report PARSONS BRINCKERHOFF
Summary of the route options – Ian Burnett
• 90km/h design speed at Forty Bends and Mt Victoria 110km/h in the valley
• Desirable grade six per
cent. Maximum grade eight per cent
• Four lane highway • Appropriate intersection
treatments provided • Service roads provided
where possible using the existing highway
Forty Bends Current alignment
• Improved alignment
• Less earthworks
• Avoids heritage curtilages
• Less property impacts
• Construction under traffic
Straight alignment
• More alignment improvements
• More earthworks
• Reduce susceptibility to black
ice
• Potentially affects heritage
curtilages
• More property impacts
• Less construction under traffic
PARSONS BRINCKERHOFF Value Management Workshop Report Page C-9
River Lett Hill
Little Hartley
Southern alignment
• Less earthworks
• Some construction under traffic
• Side traffic at highway crossing
• More property impacts
• More vegetation impacts
• Less visual impacts
Northern alignment
• Extensive earthworks and
structures
• Less impact during construction
• Less property impacts
• Less vegetation impacts
• Higher visual impacts
Current alignment
• Two lane road only between
Hart of Erin and Ambermere
• Four lane road requires
relocation of Harp of Erin
• Less property impacts
• Limited vegetation impacts
Bypass alignment
• Allows for four lanes
• Avoids relocation of Harp of
Erin
• Alters context of heritage
buildings
• More property impacts
• Noise impacts to residents
• More vegetation affected
Page C-10 Value Management Workshop Report PARSONS BRINCKERHOFF
Mt Victoria
Mt Victoria – Outer Bypass
Outer bypass
• Impact on the curtilage of the Grange
• Includes a 500 – 600 m tunnel under Mt York Road at two per cent grade
• 750 m long viaduct required 70 m high at eight per cent grade
• The least impact on the curtilage of the Victoria Stockade
• Minimises potential impact on property and access with tunnel
PARSONS BRINCKERHOFF Value Management Workshop Report Page C-11
Mt Victoria – Long tunnel bypass
Long Tunnel bypass
• Avoids a direct impact on the curtilage of the Grange
• 250 m long viaduct required west of the Darling Causeway 40 m high
• Includes a 1.3 km tunnel under Mt York Road at 5.3 per cent grade
• Crosses the curtilage of the Victoria Stockade
• Would have the least property impacts
MT Victoria – Inner Bypass
Inner bypass
• Impacts the curtilage of the Grange
• Two viaducts required 200 m and 300 m long across the Grange 40 m high
• Passes through the Caltex service station
• 1.9km long viaduct required 110 m high at eight per cent grade
• Crosses the curtilage of the Victoria Stockade
• Most property impacts
• Would provide an opportunity for staged construction.