3. The problem that we detected is the 
high cost of lighting the streets at night.

5. So if we used a natural source of power 
to produce electricity, that will provide us
the money that we used to light the
street.

7. We had an idea to put bumps in the the 
streets, and every car passes on the
bump , it produces electrecity that is
reserved and used to light the streets at
night.

9. A windmill and every car passes with a 
high speed , the wind impelled from the
car will turn the windmill , and the
successive movement will increase the
speed of the windmill, and it's connected
to a generator to transform the mecanic
energy to electrecity , enough to light a
light column or charge a battery that
light it ..

11. And we decided then to choose the 
second idea

12. But After talking with Mr.Said Marc our
maths teacher, we decided to apply the
first idea . He told us that a windmill
could work well at first but after that the
environment and the ambiance will let
the windmill stop turning cause while the
cars are moving , a quantity of sand can
let into the windmill and it’ll turn hardly
after that.

15. Strenths
-Producing electricity exploiting cars 
-Lighting streets at night Subsequently 
the average of accidents will decrease.
-Providing alot of money that can be 
used in other projects but lighting
Streets.

16. Weakness
This bump must be repared 
betweentimes.
-It may not produce the rquired quantity of
energy that lights the street at night.
-Heavy cars could ruin the bump.

17. Oppurtunities
It could be put on the highways that are 
available.
-The model will be done easily 
-Any Gouvernement could accept this 
idea cause it’ll provides money.
-It’s more applicable than photocells 
1-photocells cost a lot of money 
2-Some countries their climate isn’t 
sunny.

18. Threats
-Some Cars drivers could not accept this 
idea.
-Knowing the ration between the model 
and the reality
-If our idea is accepted , to apply it on a 
street , this street will be busy .That will
cause a traffic jam