Concept: Street canyon in the dispersionlocal vocabulary

Concept URI	http://dd.eionet.europa.eu/vocabulary/aq/dispersionlocal/canyon
Preferred label	Street canyon
Definition	Continuous/compact buildings along both sides of the street over more than 100 m. Average ratio of height of buildings to width of street > 0,5. (for this purpose "street" means the distance between the two facades of the buildings opposing each other, so including any pavements, gardens, etc.).
Notation	canyon
Status	Valid
Status Modified	2013-03-22
Accepted Date	2013-03-22
Not Accepted Date