Amount of world population who lived in cities in 1800
Under 3%
In 2008: over 50%
By 2050: over 65%
www.192021.org
Estimated percentage of ground surface impermeable to precipitation
35% in Fresno
90% in San Francisco
www.sciencenews.org
Size of US land area covered with impervious surfaces
An area equal to the state of Ohio
www.sciencenews.org
Length of new roads added to the US each year
10,000 miles
www.sciencenews.org
National average of tree canopy cover in major US cities
21%
San Francisco’s canopy: 12%
San Diego’s canopy: 8.6%
www.fs.fed.us
Landscape alphabet soup
ASLA American Society of Landscape Architects
CELA Council of Educators in Landscape Architecture
CLARB Council of Landscape Architectural Registration Boards
EDRA Environmental Design Research Association
SCUP Society for College and University Planning
LAAB Landscape Architectural Accreditation Board
LARE Landscape Architecture Registration Examination
LATC Landscape Architects Technical Committee
www.asla.org
Magazines you’ll find in the library of SWA’s Sausalito office
Garden Design
Gardens Illustrated
Horticulture
Landscape Architecture
Landscape Journal
Places
Planning
Urban Space
www.swagroup.com
Number of US schools with accredited landscape architecture programs
67
31 undergraduate programs only
13 both undergraduate and graduate programs
23 graduate programs only
www.asla.org
Recent pass rates on the Landscape Architecture Registration Examination
Legal – 73%
Analytical – 68%
Design – 33%
Structural – 57%
Grading – 24%
www.latc.ca.gov
Number of landscape architecture firms
US – 6,829 (with 43,156 employees)
CA – 978 (with 9,419 employees)
www.census.gov
Number of landscape architects in the US
33,000
www.asla.org
California landscape architects awarded the ASLA Medal
1975 – Garrett Eckbo
1976 – Thomas Church
1978 – Lawrence Halprin
1989 – Robert Royston
2004 – Peter Walker
2007 – William Callaway
www.asla.org
California landscape architecture firms given the ASLA Firm Award
2005 SWA Group
2007 Sasaki Associates
www.asla.org
Only state in the US that doesn’t license landscape architects
Vermont
www.clarb.org
Originally published 2nd quarter 2008, in arcCA 08.2, “Landscape + Architecture.”
