2013.9.26

The 2012 external presentations have been added to the Research Results page.

2013.7.26

Research Content page has been updated.
“Research on the use of energy from urban-derived plant waste” was added to Global Warming Countermeasures.

2013.5.16

The Greening Ecology Laboratory is now part of the Road Research Department.

2013.4.12

Research Results page has been updated.
Technical Methodology for Road Environmental Impact Assessment (2012 Edition)
Reference material for investigation, prediction, and evaluation of animals, plants, and ecosystems in “1. Planning stage considerations” of the technical method for road environmental impact assessment
Technical Methodology for Road Environmental Impact Assessment “13. Case Studies on Environmental Protection Measures for Animals, Plants, and Ecosystems”
Guideline for Slope Revegetation Work Considering the Preservation of Local Ecosystems
Draft Guide to Historic City Planning
Report of the Greening Ecology Laboratory, Vol. 27
Annual reports and documents through FY2011

2013.4.8

Research Staff page has been updated.