Bird in Hand Gold Mine Transport Task Focus Group 16 th August 2017 - - PowerPoint PPT Presentation

Bird in Hand Gold Mine

Transport Task Focus Group 16th August 2017

What’s moving?

• Haulage of ore
• Other trucks (supplies)
• Company vehicles
• Employee vehicles
• Visitor vehicles

How much is moving?

Average ore yield = 100 000t/annum Peak ore yield = 140 000t/annum

What type & how many vehicles?

• Ore haulage vehicles – 19m Rigid Truck and Dog;

12 loads = 24 movements per day

• Other supply trucks – Rigid Trucks thru’ to Semi-Trailers

2 loads = 4 movements per day

• Company vehicles - Utes/SUV’s

5 vehicles = 10 movements per day

• Employee vehicles – Cars

15 cars per shift (2 shifts per day) = 60 movements per day

• Visitors – Cars

3 cars = 6 movements per day

TOTAL movements per day = 104

How many vehicles?

Overall, the mine site is expected to generate approximately 104 movements per day

• n Pfeiffer Road and the surrounding road network

Where will vehicles travel?

• Ore haulage – Woodside to Strathalbyn
• Other supply trucks – depends on type of delivery
• Company vehicles – depends on activity/user
• Employee vehicles – as per company vehicles
• Visitors – depends on who/where

What’s happening on Pfeiffer Road now?

Currently, assuming that daily traffic volumes occur over a 10 hour period each day, on average there is… 1 vehicle every 37 seconds 1 heavy vehicle every 3.9 (say 4) minutes

Pfeiffer Road with the mine in operation…

Pfeiffer Road will likely experience a total of 1085 vehicles per day = 1 vehicle every 33 seconds Of this, 181 will be Heavy Vehicles = 1 Heavy Vehicle every 3.3 minutes

What’s happening on Nairne Road now?

Road Segment AADT (2015) No of Heavy Vehicles %age of Heavy Vehicles Pfeiffer Rd to Military Rd 3 400 200 6% Military Rd to Nairne entrance 5 000 230 4.5% Nairne entrance to Old Princes Highway 6 300 250 5%

Nairne Road with the mine in operation…

Pfeiffer Road will likely experience a total of

Road Segment No of Vehicles per Day Approx frequency of vehicles No of Heavy Vehicles per Day Heavy Vehicles Pfeiffer Rd to Military Rd 3 504 1 vehicle every 10 secs 228 1 every 2.6 mins Military Rd to Nairne entrance 5 104 1 vehicle every 7 secs 258 1 every 2.3 mins Nairne entrance to Old Princes Hwy 6 404 1 vehicle every 6 secs 278 1 every 2.2 minutes

Keeping away from peak school and commuter traffic

It is proposed that ore haulage truck movements do NOT occur between 6am - 9am and 3pm - 4pm

Ore Haulage

Why a 19m Truck and Dog Trailer?

• Number of trips needed

vs

• Ability of roads to cater for proposed vehicle type

vs

• Operating costs of vehicles

19m Truck and Dog

Source: Google, accessed 2017

19m Semi-Trailer

Source: Google, accessed 2017

26m B-Double

Source: Google, accessed 2017

19m Truck and Dog

• Carries more than a semi-trailer
• Although it is more efficient however to use a B-Double
• 19m Truck and Dog is considered a General Access Vehicle; ie

can travel on any component of the road network

• Vehicle operating costs of the 19m Truck and Dog very efficient

compared to other options

Where will the ore travel?

Woodside to Strathalbyn - 3 possible routes (refer maps): Route 1 – via Nairne Road, Old Princes Hwy, Bald Hills Rd, Hartman Rd, Paech Rd, Wellington Rd & Callington Rd Route 2 – via Nairne Rd, South Eastern Freeway and Callington Rd Route 3 – via Nairne Rd, Nairne Township, Old Princes Hwy and Callington Rd

Selecting a Preferred Route

Key considerations:

• Physical assessment
• Road geometry
• Surrounding environment
• Safety
• Analytical assessment
• Impact of additional traffic on the road network
• Social/operational assessment
• Surrounding land uses
• Other road users
• Operational needs of the road network
• Intended use of the route to fit within its planned role and function

Physical Assessment

Route 1 Travel time = 35 minutes

• Roadside vegetation requires trimming
• Hartman Rd/Sims Rd/Paech Rd junction does not meet

requirements for a General Access Vehicle and needs upgrade

• Sight distance issues
• Unsealed shoulders
• Needs some guard railing

Physical Assessment

Route 2 Travel time = 40 minutes

• Roadside vegetation requires trimming
• Sight distance issues
• Unsealed shoulders
• Some warning signage required

Physical Assessment

Route 3 Travel time = 45 minutes

• Roadside vegetation requires trimming
• Nairne Rd/Old Princes Hwy junction does not cater for General

Access Vehicles and needs upgrade

• Sight distance issues
• Some warning signage required

Analytical Assessment

• Additional traffic as discussed previously

Social/ Operational Assessment

• Proximity of residential development
• Proximity of school traffic
• Safety of existing junctions
• Consideration of other nearby land uses
• Others??

Feedback to date

• DPTI
• Adelaide Hills Council
• District Council of Mount Barker
• Alexandrina Council