Course ID: DSMHT 305 Course Title: Urban and Regional Planning: Risk Mitigation Concept

1. Welcome to Lecture 01
to Lecture 01We
DSMHT 305: Urban and Regional Planning:
Risk Mitigation Concept
Department of Disaster Science and Management
University of Dhaka
Bangladesh
Prepared by-
BAYES AHMED
13 DECEMBER 2015
Welcome to Lecture 05

2. Urban Area Plan
 Urban Area Plan is the second stage of the master plan
package.
 This plan is based on the framework of the Structure
Plan prepared in the earlier phase.
 The Plan is intended to address those areas of the
Structure Plan that are likely to face urban growth
during next 10 years
 It includes the SCC and adjacent areas like Kasba
Akhalia, Kumargaon (Part), Sadipur 1st Part, Debpur
(Part) and Bahar (Part).

3. Urban Area Plan
 The Urban Area Plan is aimed to,
- determine the present and future functional structure of
the city, including land use;
- provide infrastructure proposals for improving and
guiding development of future urban area.
 The objectives of the plan will be attained through,
- location of appropriate communication network;
- orderly location of various urban land uses;
- orderly location of services and facilities.

4. Urban Area Plan
 Urban Area Plan is the first phase detailed illustration of
the policies and strategies of the structure plan.
 It designates plot-to-plot use of land.
 It will also serve as a development control
mechanism/instrument. Thus it is more rigid than Structure
Plan.
 Making a land use plan on a cadastral map makes the
Urban Area Plan more rigid. Once the plan on a cadastral
map is drawn and accepted by the government and
formalized, it gains a formal status and thus becomes a
binding for all concerned.

5. Urban Area Plan
 The reason behind choosing UAP area lies in fact that this
is the most urbanized part of the structure plan area,
where there is still scope and possibility of
urbanization in the near future.

6. Urban Area Plan
Recommended Planning Standard
The planning standards are suggested on anticipated rate of
future urbanization, availability and value of land, future size
of population, environmental quality and above all future
need of the target population considering the guiding policy
of optimizing use of land.
The concentration is given on the planning standard on the
following selected areas:
1. Road
2. Residential Area
3. Social Services
4. Community Facilities and Recreation
5. Physical Infrastructure Facilities

7. Urban Area Plan
Recommended Planning Standard
The planning standards are suggested on anticipated rate of
future urbanization, availability and value of land, future size
of population, environmental quality and above all future
need of the target population considering the guiding policy
of optimizing use of land.
The concentration is given on the planning standard on the
following selected areas:
1. Road
2. Residential Area
3. Social Services
4. Community Facilities and Recreation
5. Physical Infrastructure Facilities

8. Urban Area Plan
Overall Road Hierarchy Standard
Primary Road
New Construction: 30.45m (100 ft.)
Widening of Existing Road: 18.30.39m-24.39m (60-80 ft)
Secondary Road
New Construction: 12.20m (40 ft.)
Widening of Existing Road: 9.15m (30 ft)
Collector Road
New Construction: 9.15m (30 ft)
Widening of Existing Road: 6.09m (20 ft. Minimum)
Access Road
New Construction: 9.15m (30 ft)
Widening of Existing Road: 6.09m (20 ft. Minimum)

9. Urban Area Plan
Residential Density Control
Public Sector Housing Estate
Gross Density/Acre : 180 persons
Net Density/Acre : 300 persons
Private Sector Housing Estate-Cooperative and Commercial
Gross Density/Acre : 211 persons
Net Density/Acre : 325 persons
The density standards of public sector sponsored housing
estates are determined using the following assumptions:

10. Urban Area Plan
 2 units in each floor of each 3 katha plot on average,
each building having 3 storey in height,
6 families living in each 3 katha,
total population in each 3 katha (assuming 5 as average
H/H size) : 5 x 6 = 30 persons, Net density per acre = (30
÷ 3 x 60) = 600 persons
 Assuming 60 acres as net residential area of a 100 acre
residential area estate, total population of the housing
area : 60 x 600 = 36,000
Gross density of public sector housing area (36,000 ÷
100) = 360 persons/acre
[1 Katha = 720 sq ft; 1 Acre = 3 bigha = 60.5 katha]

11. Urban Area Plan

12. Urban Area Plan

13. Urban Area Plan
Primary School
The consultant has determined a standard of one primary
school for every 5000 population of the study area.
For a projected population of about 1313408 of the Urban
Area Plan area (2020) this would give (1313408 / 5000) =
262 schools.
Having 350 students in each shift and two shifts in each
school this number of schools will accommodate (350 x 262
x2) 183400.
Considering 15% of the population (5-11 age group) as
primary school going, the total number of students come to
(1313408 x 15 /100) 197011 in the year 2020.

14. Urban Area Plan
Primary School
This means that the proposed number of schools would be
able to accommodate the entire number of primary level
students in the year 2020.
There already exists 78 primary schools in the proposed
urban area, so additional 184 primary schools will be
needed in the year 2020.
Each school having 1 acre of land the total land required
for primary schools will be (1x184) 184 acres (74.50 ha).

15. Urban Area Plan
Secondary School
The suggested standard for secondary school is one school
for each 8000 population. For a projected population of
1313408 of the Urban Area Plan area (2020) this would give
(1313408 / 8000) 164 secondary schools. With two shifts
each day and 575 students in each shift this number of
schools will accommodate (575 x 164 x 2) 188600 students.
Considering 15% of the population (6-15 age groups) as
secondary school going age the total number of students
comes to (1313408 x 15 /100) 197011 students. There
already exists 32 schools in the proposed Urban Area Plan
area, so additional 132 schools would be required by the
year 2020. Each Secondary School having 2 acre of land the
total land required for primary schools will be (2x132) 264
acres (106.88 ha).

16. Urban Area Plan
College
For college (higher secondary and degree) the suggested
standard is one college space for every 25,000 population.
This would produce (1313408/25,000) 53 colleges in the
proposed urban area in 2020. Each college on average
accommodating 1800 students the proposed 53 colleges
would be able to accommodate (53 x 1800) 95400 students.
There already exist 26 colleges in the urban area. Additional
27 colleges will be required by the year 2020. Space for each
college is suggested at 3 acres, so the total land needed for
27 colleges will be (27x3) 81 acres.

17. Urban Area Plan
Land Use Zoning
The Urban Area Plan area has been divided into 20 land use
zone.
• To follow the existing trend of land use development.
• To promote economic activities.
• to allow intermingling of uses particularly the
commercial use.
• Mixed use zone has been introduced where small
commercial and non-polluting service and processing
establishments will co-exist with residential use.
• To allow maximum possible freedom to investors to set
up their establishments at places most suitable for their
operation.
• Urban reserve land class has been introduced to reserve
land for future urban use.

18. Urban Area Plan

19. Urban Area Plan
Environmental Improvement
1. Physical Environment
Flood Protection
Earthquake
Change in Topography
Land Use Change
Drainage Congestion
Surface Water Pollution
Groundwater Depletion
Groundwater Pollution
Loss of Wetlands
Noise Pollution
Air Pollution
Unlawful Hill Cutting

20. Urban Area Plan
Environmental Improvement
2. Biological Environment
Loss of Habitat
Loss of Biodiversity
Loss of Capture Fisheries
Loss of Ponds and Culture Fisheries
Loss of Productive Agricultural

21. Urban Area Plan
Environmental Improvement
3. Social Environment
Population
Literacy
Status of Women
Electricity
Telephone
Health Services
Human Diseases
Sanitation
Parks and Recreational Places
Solid Waste
Water Supply
Social Forestry

22. Urban Area Plan
Environmental Improvement
4. Economic Environment
Traffic Congestion
Fire Hazard

23. Urban Area Plan

24. Detailed Area Plan
The Detailed Area Plan (DAP) is a series of detailed spatial
development plans of different types.
The DAPs consist of design and other implementation
details.
The aim of a DAP is to prevent haphazard urban
development and ensure livable environment in areas that
are likely to be urbanized soon.
Initially Detailed Area Plan should be prepared for only those
areas where action is needed immediately or where
development pressure is high.

25. Detailed Area Plan
Purpose of the Detailed Area Plan
The provision of Detailed Area Plan is inherent in the
Structure Plan with some specific purposes. These are:
• Provide basic micro level infrastructure and services
in the study area through systematic planning, under the
framework of Structure Plan.
• Create appropriate environment to promote economic
activities.
• Improve drainage system and protect natural water
channels from encroachment.
• Create service centers to promote urban growth.

26. Detailed Area Plan
Strategic Planning Zones (SPZ)
The logic behind the creation of SPZ is to divide the
Structure Plan area into smaller units, expose their
problems and opportunities and propose development
proposals for amelioration of the problems as well as to
promote development.
Combining the areas of common use enables putting them
into future uniform land use.

27. Detailed Area Plan
Indicators in delineating the SPZ are:
a) Population Growth and density,
b) Area,
c) Landuse, mainly economic denominator and their
heterogeneity,
d) Road Networks,
e) Physical Boundary,
f) Potential development opportunity, and
g) Uniformity of land use.

28. Detailed Area Plan
Advantages of SPZ:
Perception of stakeholders can be drawn on more
specific and accurate basis.
Issues like, infrastructure, social amenities and general
expectations can be graphically portrayed/ articulated.
Helps better diagnosis of problems besetting the area.
A useful base for analysis and micro recommendations.
Enables easy and accurate planning (short term
investment decisions) which can provide the basis for the
capital investment program at local level.
Facilitate, more opportunity for dialogue with local
people in order to achieve consensus on detailed local level
planning.

29. Detailed Area Plan

30. Detailed Area Plan

31. Detailed Area Plan

32. Detailed Area Plan
Environmental Improvement (SPZ1)
1. Protection of Existing Hillocks/Tillas: No hillock/tila
cutting and deforestation should be allowed in the
existing hilly areas.
2. Green Belt along the River and Chhoras: All major
chhoras should be excavated, and bank lines of Surma
and the chhoras should be marked and fixed. Along the
bank line there should be a buffer zone of green belt.
3. Protection of Water Bodies: Water bodies like pond,
dighi, chhora and khal should be protected from
encroachment and unauthorized land filling as they keep
balance between nature and environment.

33. Detailed Area Plan

34. Detailed Area Plan

35. Detailed Area Plan

36. Detailed Area Plan

37. Thank You for Listening!
Any Question?
Contact Email:
bayesahmedgis@gmail.com