Sessions, John

University Distinguished Professor
Strachan Chair of Forest Operations Management

Office Location: 
Peavy 223
Email Address: 
Curriculum Vitae: 

Registered Professional Civil Engineer: Washington

Ph.D., Forest Management, 1979 Oregon State University
M.S., Forest Engineering, 1971 University of Washington
M.S., Civil Engineering, 1968 California State University
B.S., Civil Engineering, 1966 University of California, Los Angeles

Current Programs: 

Developing techniques for transportation planning, tactical forest planning, strategic forest planning, decision support systems for road management, strategic planning on State forests, biomass collection and transport.

Graduate Students

Francisca Belart (PhD), Michael Berry (PhD), Joshua Petitmermet (MS)


    FE/FOR 456: International Forestry (team taught)
    FE 470/570: Logging Mechanics
    FE 499: Biomass Assessment, Harvesting and Transport (team taught)
    FE 552: Forest Transportation
    FE 640-001: Combinatorial Optimization in Forest Planning
    FE 640-002: Biomass Harvesting and Transport
    FE/FOR 457/557: Techniques for Forest Resource Analysis

During Academic Year 2014-2015:

Summer and Fall Term 2014 – Projects

  •     Biomass Production and Transport Planning
  •     Logging Vehicle Performance

Winter Term 2015
    FE 470/570: Logging Mechanics
    FE 640-001: Combinatorial Optimization
    FE/FOR 457/557: Techniques for Forest Resource Analysis

Spring Term 2015  
    FE/FOR 456: International Forestry
    FE 552: Transportation Planning

Recent Publications: 

Zamora, R., J. Sessions and K. Boston. 2014.  Economic Optimization of Forest Biomass Processing and Transport. Accepted. Forest Science.

Beck, S., M. Olsen, J. Sessions, and M. Wing. 2014. Automated extraction of forest road network and geometry from aerial LiDAR. In review. Photogrammetric Engineering and Remote Sensing.

Clark, J., J. Sessions, and R. Zamora. 2014. Optimizing Knife Change Times for Forest Biomass Chipping Operations.  In review.  Forest Products J.

Leshchinsky, B. J. Sessions, and J. Wimer. 2014.  Analytical design charts for mobile anchor systems.  In review.  Int. J. of For. Engr.

Zamora, R., J. Sessions, D. Smith, and G. Marrs. 2014.  Effect of high speed blowing on the bulk density of ground residues. In review.  Forest Prod. J.

Zamora, R., J. Sessions, D. Smith and G. Marrs. 2014.  Effect of grinder configuration on forest biomass bulk density, particle size distribution and fuel consumption.  In review.  Biomass and Bioenergy.

Temesgen H., K. Poudel, A. Gray, D. Affleck, and J. Sessions. 2014. Measurements and Estimation of Above Ground Biomass of the Western U.S. Forests.  In review.  Scandinavian J. of For. Res.

Wing, M. G., J. Burnett, and J. Sessions.  2014. Remote sensing and unmanned aerial system technology for monitoring and quantifying forest fire impacts.   Int. Journal of Remote Sensing Applications 4(1):18-35.

Zamora, R., P. Adams, and J. Sessions. 2014. Ground-based thinning on steep slopes in Western Oregon: Soil exposure and strength effects. In Press.  Available online February 6, 2014. http://dx.doi.org/10.5849/forsci.12-525.  Forest Science.

Akay, A., M. G. Wing, and J. Sessions.  2014. Estimating sediment reduction cost for low-volume forest roads using a LiDAR-Derived High-Resolution DEM.  Baltic J. of Road and Bridge Engineering 9(1):52-57.

Acuna, M. and J. Sessions. 2014. A simulated annealing algorithm to solve the log-truck scheduling problem.  In: Simulated Annealing: Strategies, Potential Uses and Advantages. NOVA Science. Chapter 8, pp. 191-220.

Lyons, K., J. Sessions, and J. Wimer. 2013.  The adequacy of falling object protection design criteria for feller bunchers.  (In press).  Forest Science.  Published online October 2013  (http://dx.doi.org/10.5849/forsci.12-110).    

Ghaffariyan, M. R., J. Sessions, and M. Brown.  2013.  Roadside chipping in a first thinning operation for radiata pine in South Australia.  Croation  J. of Forest Engineering 34(1):91-101.

Smith, D., J. Sessions, K. Tuers, D. Way and J. Travers.  2013. Characteristics of Forest Derived Woody Biomass Collected and Processed in Oregon.  Forest Products J.  62(7/8):520-527. 

Sessions, J., K. Tuers, K. Boston, R. Zamora and R. Anderson.  2013.  Pricing Forest Biomass for Power Generation.  Western J. of Applied Forestry 28(2):51-56.

Wing, M. G., M. Craven, J. Sessions, and J. Wimer. 2013. LiDAR-derived DEM and raw height comparisons along profile corridor gradients within a forest.  (In press).  Journal of Geographic Information System.  Published online April 2013 (http://www.scirp.org/journal/jgis).

Leu, Shao-Yuan, R. Gleisner, R., J.Y. Zhu, J. Sessions, and G. Marrs. 2013.  Robust Enzymatic Saccharification of a Douglas-fir forest harvest residue by SPORL.  Biomass and Bioenergy 59(2013):393-401.    

Zamora, R., J. Sessions, G. Murphy and K. Boston. 2013.  Economic impact of truck-machine interference in forest biomass recovery operations on steep terrain.  Forest Products Journal 63(56):162-173. 

Zamora, R., K. Boston, J. Sessions, and G. Murphy. 2013.  Stochastic simulation and optimization of mobile chipping economics in processing and transport of forest biomass from residues.  (In press).  Silva Fennica.

Hayati, E., B. Majnounian, E. Abdi, J. Sessions, and M. Makhdom.  2013.  An expert-based approach in forest road network planning by combining Delphi and Spatial Multi-Criteria Evaluation.  Environmental Modeling and Assessment 185(2):1767-1776.

Ghaffariyan, M.R., Sessions, J. and M. Brown. 2013. Road side chipping with Morbark chipper.  (Accepted).  Croatian Journal of Forest Engineering.

Wing, M. G., J. Burnett, and J. Sessions.  2013. Eyes in the sky: Remote sensing technology development using small unmanned aircraft systems.  J. of Forestry 111(5):341-347.

Beck, S. and J. Sessions. 2013. Forest road access decisions for woods chip trailers using Ant Colony Optimization and breakeven analysis.  Croation  J. of Forest Engineering 34(2)201-215.

Pilkerton, S.J., J. Sessions, and L.D. Kellogg. 2013. Development of efficient cutting patterns to maximize value with a log allocation constraint.  Int. J. of Forest Engineering, 24(1):42-52.

Recent Theses

Pavez, Ric. 2014.  An Optimization Model to Allocate Forestry Incentives Funds in Teak Plantations of the Southern-Coastal Region of Guatemala.  MS. Oregon State University. 189 pp.

Beck, Storm.  2014.  The Use Of LiDAR To Identify Forest Transportation Networks. MS. Oregon State University, 110 pp.

Zamora, Rene. 2013. Economic Optimization of Forest Biomass Processing and Treatment. PhD. Oregon State University, 196 pp.

Stander, Henk. 2011. Uncertainty, Risk Management on the Tillamook State Forest: A Case Study. PhD. Oregon State University, 346 pp.

Kokenge, Kyler. 2011. Opportunities and Challenges for Decision Support Systems in Log Truck Scheduling and Dispatching. MS. Oregon State University, 147 pp.

Schmidt, Christian. 2011. Spaitally-Explicit Prediction of Recoverable Harvesting Residues. MS. Oregon State University, 179 pp.

Simwanda, Matamyo. 2011. Modeling Biomass Transport on Single Lane Forest Roads and Monitoring GPS Accuracy for Vehicle Tracking Under Different Canopy Conditions. MS. Oregon State University, 153 pp.

Thompson, Matthew P. 2008. Contemporary Forest Road Management with Economic and Environmment Objectives. PhD. Oregon State University, 302 pp.