Len Johnstone Keywords transport ADB highways urban planning feasibility studies Cube Voyager and Road Safety Read more about Len Johnstone Experienced Planning Specialist with a demonstrated history of working in the Transportation/Trucking/Railroad industry. Skilled in Highways, Urban Planning, Feasibility Studies, Cube Voyager, and Road Safety. Strong operations professional with a Doctor of Philosophy - PhD focused in Civil, Transportation, and Geo-resources Engineering from Suranaree University of Technology.