Geoscience Reference
In-Depth Information
Fig. 1.4
Von Thünen's rings.
From “Die Isolierte Staat” by
Johann Heinrich von
Thünen”, Rostock 1842,
p. 389 (
Source
: University of
Toronto—Robarts Library,
details/
Fig. 1.5
Location problem
proposed by Launhardt
(
1900
) within an industrial
context
iron ore (collected at A) have to be combined with
w
B
tons of coal (collected at
B) to produce
w
C
tons of pig-iron to be dispatched to C. The problem calls for
an industrial facility to be located somewhere between A, B and C.Ifd
A
, d
B
, d
C
denote the Euclidean distances between the industrial location (to be determined)
and nodes A, B,andC, respectively, then the goal is to determine the location of
the industrial plant that will minimize the total weighted transportation cost given
by
w
A
d
A
C
w
B
d
B
C
w
C
d
C
.
