Figure 1.12:
Figure 1.12
(a) A street network and (b) its graphic representation. Locations such as
B
′ and
B
″,
C
′ and
C
″,
F
′ and
F
″, and
G
′ and
G
″ are merged to form the vertices
B
,
C
,
F
, and
G
. The dots shown represent parking meters.
