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In these areas residential buildings, public services and commercial ones will take place;
ULISSE will check the environmental impact of the additional traffic driven by large retailers.
With the optimal distribution of clients, ULISSE discovers critical pollution branches.
Pollution index is measured by the traffic flow in a given branch in cars/sec multiplied by
its path covered time. The model gives this quantity by the electrical power dissipated in the
chosen branch: P = V·I.
Fig. 5. Net with environment alert around node 82, and the influence zones divided by the
ridge line
Figure 5 shows the plan of the city with the considered mobility net, the ex-industrial areas
(site of new large retailers) and the distribution of influence areas for each service. The ridge
line shows how node 23 receives a larger influence area: this result depends on existing
traffic, which is usually dense in the south-east of the city (crossover traffic to east).
The system graphically signs a critical area in the net around node 82 (Figure 5 and 6):
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branch 38-65 (363 meters): pollution index equal to 30 cars - with a density of one car
every 12 meters - situation of very dense traffic;
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branch 59-65 (760 meters): pollution index equal to 38 cars - one car every 20 meters;
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branch 65-66 (257 meters): pollution index equal to 27 cars - one car every 9.5 meters,
close to complete saturation evaluated in one car every 7 meters (Figure 6).
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