Geoscience Reference
In-Depth Information
6 Conclusion
This analysis showed the impact of particular indicators on the average road traf
c
intensity. It is a step to the next analysis, where some of the indicators (for example
E, A, Q) can be analysed deeper. It means the analysis of cities regarding the
comparison of particular indicators from the point of view of their in
uence. It
should answer the question, what is the difference among cities which makes the
indicators influence differently.
Indicator R (Dust emissions from large sources) has the highest absolute in
fl
u-
ence (Fig. 2 ) and it is in the middle of average values of CCAI (Fig. 5 ). It is
interesting that indicator Q (CO 2 emissions from large sources), N (Population
growth) and R (Dust emissions from large sources) are the most important indirect
indicators having only negative correlation values. Indicator F (Traf
fl
c areas in the
core area) was the most important indicator in the table of average CCAI. The
credibility of this indicator is emphasized, because this indicator was monitored in
36 cities (Table 1 ) (even in all 49 cities analysed in the project). A negative result of
this indicator was only in Chomutov (a transit city).The second most important
indicator is Q (CO 2 emissions from large sources). This indicator belongs to a group
with a lower positive sum of CCAI and a higher negative sum of CCAI. It seems to
be an un-expected result. However, traf
cant source of CO 2 emissions.
This can be shown in all big cities not only in the Czech Republic; road traf
c is a signi
c
intensity is a great source of CO 2 emissions in centres of these cities. Therefore it is
obvious that the road traf
c in core city areas has a strong in
fl
uence to the overall
volume of CO 2 emissions.
On the other side, one of the lowest value indicator among all categories is the
Population of the city (L). There are four cities (D
ěčí
n, Chomutov, M
ě
ln
í
k a Lit-
í
v
nov) with the lowest correlation coef
cient in this indicator which is
in the
absolute value
c is created by
transit, which affects resulting average value of CCAI There are two indicators,
which have no negative correlation coefficient value in 8 cities processed in this
lower than 0.1. The prevailing part of their traf
Fig. 5 Chart of average values of CCAI (from absolute value of CCAI)
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