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Research Interests
Wood transportation, optimal bucking practices, timber harvest
scheduling, timber supply, scheduling of silviculture practices,
fire hazard reduction, logging mechanics, international forestry.
Current Programs
Developing techniques for transportation planning, tactical forest
planning, strategic forest planning, decision support systems
for road management, strategic planning on State forests, treatment
and utilization of small diameter stems in federal forests.
Courses
- FOR
457/557: Techniques for Forest Resource Analysis
- FE
449/549: Strategic and Tactical Forest Planning
- FE
470/570: Logging Mechanics
- FE 572: Logging Vehicle Performance
- FE 552: Forest Transportation
- FE 640: Combinatorial Optimization in Forest Planning
- FE/FOR
456: International Forestry
During Academic Year 2007-2008:
Summer and Fall Term 2007– Projects
- BLM Western
Oregon Plan Revision Support
- Elliott
State Forest Planning
Support
- NW Forests
State Planning
Support
- Jackson County Fuel Reduction
Workshops
- Fire Program
Analysis Interagency Science Team
- Blodgett Forest
Plan
Winter Term 2008
- FOR 457/557 - Techniques for Forest Resource Analysis
- FE 470/570 – Logging
Mechanics
Spring Term 2008
- FE 449/549 – Strategic
and Tactical Forest Planning
- FE/FOR 456 – International
Forestry
Selected Recent Publications
Dodson, E., W. Chung, K. Mills, R. Nall, J. Sessions, and G. Zartman. 2007.
Planning to determine low-volume road standards, long term needs, and environmental
risks and tradeoffs. 9th International Low Volume Roads Conference, Transportation
Research Board. Transportation Research Record 1989. Vol. 1:11-19.
Graetz, D., J. Sessions, and S. Garman. 2007. Using stand-level optimization
to reduce crown fire hazard. Journal of Landscape and Urban Planning. 80(3):312-319.
Aruga, K., W. Chung, A. Akay, J. Sessions, and E. Miyata. 2007. Incorporating
soil surface erosion prediction into forest road alignment optimization. International
J. of Forest Engineering 18(1):24-32.
Wing, M.G. and J. Sessions. 2007. Geospatial technology education. Journal
of Forestry 105(4):173-178.
Akay, A.E., J. Sessions, and K. Aruga. 2007. Designing a forwarder operation
considering tolerable soil disturbance and minimum total cost. Journal of Terramechanics.
44 (2): 187-195.
Boston, K. and J. Sessions. 2006. Development of a spatial harvest scheduling
system to promote the conservation between indigenous and exotic forests. International
Forestry Review 8(3):297-305.
Newton, M., S. Fitzgerald, R. Rose, P. Adams, S. Tesch, J. Sessions, T. Atzet,
R. Powers, and C. Skinner. 2006. Technical Comment on “Post-Wildfire
Logging Hinders Regeneration and Increases Fire Risk”, Science 313: 615a.
Akay, A., J. Sessions, P. Bettinger, R. Toupin, and A. Eklund. 2006. Evaluating
the Salvage Value of Fire-killed Timber by Helicopter – Effects of Time
Since Fire and Yarding Distance, Western Journal of Applied Forestry 21(2)
102-107.
Coulter, E., J. Coakley, and J. Sessions. 2006. The Analytic Hierarchy Process:
A Tutorial for Use in Prioritizing Forest Road Investments to Minimize Environmental
Effects. International Journal of Forest Engineering 17(2):51-70.
Epstein, R., A. Weintraub, J.B. Sessions, J. Sessions, P. Sapunar, E. Neto,
F. Bustamante, and H. Musante. 2006. A combinatorial heuristic approach
for solving real size machinery location and road design problems in forestry
planning. Operations Research 54(6):1017-1027.
Sessions, J., K. Boston, R. Thoreson, and K. Mills. 2006. Optimal policies
for managing rock resources on temporary forest roads. Western Journal of Applied
Forestry 21(4):207-216.
Aruga, K., J. Sessions, and E. Miyata. 2006. Forest road design with soil
sediment evaluation using a high resolution DEM. Journal of Forest Research
10(6):471-479.
Sessions J. and K. Boston. 2006. Optimization of road spacing for log length
shovel
logging on gentle terrain. International Journal of Forest Engineering 17(1):67-75.
Coulter, E., J. Sessions, and M. Wing. 2006. Scheduling forest road maintenance
using the analytic hierarchy process and heuristics. Silva Fennica 40(1):143-160.
Aruga, K., T. Tasaka, J. Sessions, and E. Miyata. 2006. Tabu search optimization
of forest road alignments combined with shortest paths and cubic splines. Croatian
Journal of Forest Engineering 27(1)37-47.
Akay, A., P. Bettinger, J. Sessions, and K. Aruga. 2005. Progress and Opportunities
of Using Optimization Techniques in Designing Forest Roads and Road Networks,
Submitted to Forest Science.
Sessions, J., K. Boston, R. Hill, and R. Stewart. 2005. Log sorting location
decisions under uncertainty. Forest Products Journal 55(12)53-57.
Aruga, K., J. Sessions, A. Akay, and W. Chung. 2005. Simultaneous optimization
of horizontal and vertical alignments of forest roads using Tabu Search, Journal
of Forest Engineering 16(2):137-151.
Selected Recent Theses
Coulter, Elizabeth. 2005. Setting forest road maintenance and upgrade priorities based on environmental effects and expert judgment. PhD.
Akay, Abdullah. 2003. Minimizing total cost of construction maintenance
and transportation costs with computer-aided forest road design.
PhD.
Chung, Woodam. 2002. Optimization of Cable Logging Layout using
a heuristic algorithm for network planning. PhD.
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