PIARC Dictionary
Technical Dictionary of Road Terms
validated by the members of the Technical and Terminology Committees of PIARC.
- Reference languages: English and French.
- June 2012 1,795 concepts, of which about 1,100 with a definition.
- Available 100 % in English, Dutch and French and over 85 % in Czech, Estonian, German, Norwegian, Portuguese, Spanish and Ukrainian.
- Partly available in Arabic, Chinese, Greek, Hungarian, Italian, Japanese, Latvian, Persian, Romanian, Russian, Serbian and Vietnamese.
Theme
- 1-0-0 Types of Roads
- 2-0-0 Design and Geometry
- 3-0-0 Traffic and Transport
- 4-0-0 Intersections
- 5-0-0 Components of the Road
- 6-0-0 Drainage
- 7-0-0 Auxiliary Works and Accessories
- 8-0-0 Structure of the Pavement
- 9-0-0 Materials
- 10-0-0 Construction
- 11-0-0 Quality, Faults and Tests
- 12-0-0 Structures
- 13-0-0 Maintenance, Winter Maintenance and Management
- 14-0-0 Economics and Finance
- 15-0-0 Tunnels
- 16-0-0 Environment, Nuisance, Accidents
Sub-themes
- 10-1-0 Construction - General Items
- 10-2-0 Earthworks
- 10-3-0 Pavements - General Items
- 10-4-0 Flexible Pavements
- 10-5-0 Rigid Pavements
Terms in Earthworks.
- additive to improve grading
- anchor bolt
- borrow pit
- bulkhead
- bulking
- bulldozer
- composite profile [part cut and part fill]
- consolidation 1
- cut and fill
- cutting
- diaphragm wall
- earthmoving programme
- earthworks
- filling
- forepoling
- gabion
- grader
- grading
- grubbing up
- heading face
- lagging
- loosening of rock
- mass haul diagram
- mattress effect
- measurement of earthworks
- moisture condition
- mucking out
- overbreak
- preloading
- presplitting
- reinforced earth
- ripping
- riprap
- rockbolting
- rock excavation
- run to spoil
- scraper
- secant piles
- segment
- settlement
- sheet pile wall
- shoring
- site clearing
- soil improvement
- soil stabilization
- soil treatment
- soil use table
- stacking material for reuse
- stripping of overburden
- stripping of topsoil
- to disturb