Database Reference
In-Depth Information
116 5
14 5 0
7741
1000
1000
5000
500
500
0.0
161.9
0.0
240.2
0.0
190.1
(a)
(b)
(c)
(d)
(e)
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(f)
(g)
Figure 8.6 (a,b,c) Frequency distributions of car speeds on motorways in different ranges
of distance to the nearest neighbor car: (a) below 20 m, (b) 20-50 m, (c) over 50 m.
(d) Trajectory segments on or near motorways selected by means of segment filter. (e)
Spatio-temporal clusters of low-speed events on motorways where the distance to the
nearest neighbor is 10 m or less. Yellow shapes represent spatio-temporal convex hulls of
the clusters. (f) Trajectories that passed through one of the convex hulls are selected by
filtering. (g) The selected trajectories and respective low speed events in a STC. (See color
plate.)
