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Land use- standard & reading and understanding land use plans.ppt
1. STANDARDS FOR MAJOR LAND USE COMPONENTS
BY DENSITIES, AREA, SUBDIVSION &
LOCATION(ZONNING); READING &
UNDERSTANDING LANDUSE PLANS
AAU
URBAN & REGIONAL PLANNING DEPT.
Week -10 (Nov. 30-Dec.6/2009)
2. Learning Objectives
• To understand
– major land uses.
– meaning of desirable standards for land uses.
– type of standards useful for land uses.
– how to designate & read land uses.
3. EXERCISE-1(10’)
• Identify at least 3 major functions in the city
of Addis Ababa (individual)
• Use Cue cards
• Group them into 3 categories.
• Name the categories.
4. MAJOR LAND USES
Work
Living
Comedy is medicine
(Trevor Griffiths(1935-)British playwright.
‘… if any would not work,
neither should he eat.’
King James Bible
II Thessalonians 3:10
Leisure:
‘The best preparation for good work
tomorrow is to do good work today.’
Elbert Hubbard (1856 - 1915)
U.S. writer, printer, and editor.
‘A house is a machine
for living in.’
Le Corbusier (1887 - 1965)
Swiss-born French architect.
Towards a New Architecture
5. Work Area
• Manufacturing,
• Trade, &
• Services
OFFICE
WAREHOUSE
MONEY
MANUFACTURING FACTORY
CONSTRUCTION
SERVICE
INDUSTRY
6. Leisure-Time Area
Major Educational, Cultural,
Recreational facilities
such as :-
• College,
• Museums,
• Concert halls,
• Libraries,
• Public parks,
• Wildlife reserves, etc.
PICNIC SAIL
GAMES
FOOTBALL
LIBRARY
KITE FLYING
10. Where do you want to live? Why?
SOUTH AFRICA
ZURICH
DESERT COLD
11. STANDARD
• Standard:
– Are a set of yardsticks established for measuring
the excellence of quality in use location.
– For law-minimum standards :
• at least necessary quality.
– For planning-Desirable standards:
• b/n the minimum & optimum situation (practicable to
achieve in the great majority of applications.)
• not absolute ,
• allows tolerance & variability.
12. STANDARDS FOR MAJOR LAND USES
• Location requirement:
– Convenience standards
– Performance standards
– Security standards
• Space requirements:
– Density Standard
– Area Standard
• Subdivision Standard
• Location/zoning standard
15. Performance standard
• Criteria
– Health
– Safety
– Amenity
• Hazard/nuisance from land
use
– Smoke
– Dust
– Noise
– Glare
– Congestion
– Etc
• Needs test & setting the
minimum
Performance
16. SECURITY STANDARD
• Public safety
• National well-being
– Industries vulnerability for
war (enemies)
– Industrial dispersion
/concentration.
– Thermonuclear weapons
19. Area Standard
• How much space?
• 3 steps
– Assess & determine intensity of uses.
– Derive appropriate space standards
– Balance space requirements i.e . Provide contingencies (25%)
20. Sub division Standard
• Parceling :
– dividing a larger area of land into smaller plots.
• Governmental work.
• Ensures sound community growth.
• Safeguard the interest of developers, sub
dividers & local governments.
• Prevent excessive government operating
cost.
21. Sub division Standard
• Technical & business venture.
• Provide adequate policy
– protection for
• fire,
• hazard,
• utility supply,
– Background for provision of social infrastructure
22. Location/zoning standard
• Law/regulation
• Prevent misuse of lands & buildings
• Limit height of buildings & densities of pop.
– Residential zone
– Commercial
– Industrial
– Civic
– Institutional
– Recreational
23. Location/zoning standard
• Type
– Use zoning:
• Divides the city in functional zones.
– Height zoning:
• Control height & volume of buildings.
• Height of building to adjacent road width.
• 45o& 63.5o
• Air plane rules
• FAR
– Density zoning:
• Pop. per unit area
• Gross density: Pop/Residential area + open space area + non-
residential uses
• Net density : house hold/housing area +local road area
24. LAND USE READING
• Variation of uses
• Systematic
– Coding system
• Grouping of like categories of land use based on some
predetermined purposes.
• Quick access to data & its arrangement.
• Parcel characteristics:
– location, area, ownership
• Structural characteristics:
– building type, FAR, BAR
• Land use characteristics:
– residential, industrial etc
25. LAND USE READING
• Nesting approach
– SIC: Standard Industrial Classification
– 0 -9 number based classification (single digit)
– Two-many digits for further classifications
• Graphic presentation
– Color:
• black & white
• Colors: VIBGYOR (physics)
– Lines: hatched
