Land use survey
Photo material
There were a 1:25 000 black and white pancromatic photo-
graphy from 1973 and a 1:20 000 photography from December,
1976 available. A photomosaie 1:10 000 made from the former
photography was used to show the 1975 situation, From the
latter photography contact prints 1:20 000 with stereoscopic
coverage and 1:10 000 enlargement were made, In addition to
the photos 1:5000 and 1:10 O00 maps compiled from the 1975
photography were also available.
Objectives of the survey
The survey was made in order to get answers for the follow-
ing questions:
- What is the population by traffic zone 1977? The populat-
ion data 1975 was given in "mahallah'"s, which is a tradit-
ional statistic unit in Libya. The traffic zones were in
general smaller than mahallahs,
= What are the economic activities 1977 by zone in terms
of land area and floor space occupied by different
functions? There were some statistics about the employ-
ment in the city, but the zonal distribution was unknown,
The above data was necessary for the traffic model calibrat-
ion and for the forecasting of land use and traffic generation
and attraction development.
General aspects about the working method,
In a land use survey the smallest areal unit, in which the
information will be given and the classification of economic
activities should be predetermined.