FORE606-13S2 (C)
Semester Two 2013
Forest Transport
Description
Modes of forestry transportation around the world. Comparison of truck and rail transport of forestry produce. Pavement thickness design. Culverts and bridges in forestry. Vehicle specification and trucking costs. Calculations of maximum payload and axle weightings. Calculation of gradeability. Inventory control, wood flow planning and control.
This course covers two broad closely related topic areas, being forest transportation as well as forest (or low-volume) road design. For transportation it provides for evaluation and comparison of options for the transport of forest products. It moves to legal regulations for heavy vehicles operation on New Zealand public roads, and then covers forestry truck and trailer designs and their impact on load capacity and vehicle safety. To link the two parts of the course vehicle / road interaction is investigated. For the roads part of the course it reviews soil engineering characteristics and low-cost methods to determine the bearing capacity of subgrade soils. Road design for forest roads and the design of low-cost water crossings and drainage structures are taught. RoadEng road design software is the used to design a trial section of road, and the project includes cost estimation and contract management for road construction.
Learning Outcomes
Students who successfully complete this course will:
• Evaluate and mathematically analyse transport networks and different modes of transporting forest products;
• Understand basic geotechnical engineering concepts and know how to conduct and evaluate low-cost soil engineering tests;
• Understand the stress-strain effect that vehicle loads have on the road pavement;
• Be aware of New Zealand heavy weight and dimension regulations and understand the effect that these regulations have on load capacity;
• Recognise different truck configurations used in forest operations;
• Understand the behaviour of heavy vehicles on roadways (including roll-over, off-tracking, cornering) and understand mitigating road design approaches;
• Understand the principles of contract management for typical forest road construction projects;
• Estimate the cost of road construction for a typical forest road;
• Be able to design the layout of a forest road on a green-field site using RoadEng software;
• Understand the use of granular pavement design algorithms to calculate the required pavement thickness for a forest road;
• Be able to determine the appropriate culvert size for a specified waterway, and be able to correctly describe the culvert installation procedure; and
• Be able to design a drainage network for a forest road in steep terrain.
Subject to approval of the Head of Department.
Course Coordinator
Rien Visser
For further information see
School of Forestry.
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FORE606-13S2 (C)
Semester Two 2013
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