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Beyond Optimal City Size
An Evaluation of Alternative Urban Growth Patterns
Gobardhan Banskota
Nepal Engineering College
Centre for Postgraduate Studies(nec-CPS)
MSc in Transportation Engineering and
Management
1 Planning Studio 12/11/14

Presentation Outline
 Introduction:
 Definition:
 Abstract:
 Evaluation System:
 Conclusion:

Introduction
 Research by Roberta Capello and Roberto Camagni
 Paper first received, January 1999; final form,
August 1999
 Size of optimal city: one single size or infinite sizes
 The model is applied to 58 Italian cities.

Abstract
 The aim of the paper is to present a critical view of
theoretical works on city size.
 Begins with the consideration that, during the 1960s and
1970s, the question of optimal city size tended to be
expressed in a misleading way.
 The real issue is not ‘optimal city size’ but ‘efficient size’

Abstract contd…
 depends on the functional characteristics of the city and on
the spatial organisation within the urban
 will vary from city to city, from society to society
 to identify the main theories which replace the limits of the
neoclassical approach
*neoclassical=focusing on the determination of prices, outputs, and income distributions in markets through
supply and demand

Major issues
 The debate on ‘optimal’ city size: one single size or infinite
sizes?
> Since the 1960s, urban economists and geographers focused on the
problem of the optimal city size
> The optimal condition for the entire population of the system, urban
and not urban, is reached when urban marginal costs equal marginal
benefits (to size increase).
*

The determinants of urban size
1. Traditional approaches
2. Unconventional approaches

1.Traditional approaches
 Indivisibilities and productivity
 Environmental costs and social conflicts
 Collection of facilitates for social interaction
 Urban diversity as source of creativity

2. Unconventional approaches
 Urban functions and urban ranks
 City networks
 Urban form and laying

Things to remember

Purpose/function

Evaluation
 Rational formula is widely used to evaluate The
Measurement of the City Effect and the Urban Overload
 The results have regard to the size elasticity of the city effect
and the urban overload, calculated in three circumstances:
I. for different levels of urban size;
II. for different types of function;
III. for different levels of network integration.

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Presentation on An Evaluation of Alternative Urban Growth Patterns

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